Earbuds / Compare

Sony LinkBuds Fit vs Sony LinkBuds S

A

Product A: Sony

LinkBuds Fit

84 of 166 known

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B

Product B: Sony

LinkBuds S

88 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ASony LinkBuds Fit

BSony LinkBuds S

General

3 of 8 differ

Series

LinkBuds1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026

LinkBuds1Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

WF-LS910N, YY29753Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

WF-LS900N, YY29501Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Cover page 1 identifies Model YY2950. Contents page 2 identifies WF-LS900N.

GTIN / EAN

Not available

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

1 October 20245Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026October 1 opens preorder. Actual October retail month independently established below.

18 May 20224Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026Original Sony Electronics release issued May 18, 2022, syndicated by PR Newswire. May 20 availability is a forecast here and corroborated by actual retrospective review.

Status

Not available

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Sony LinkBuds S15Reviewm.gsmarena.com/sony_unveils_linkbuds_open_with_open_design_linkbuds_fit_replace_the_linkbuds_s-amp-64762.phpRead 23 October 2026GSMArena says the LinkBuds Fit replaces the LinkBuds S and calls it the sequel to the LinkBuds S.16Reviewtomsguide.com/audio/sony-revives-linkbuds-series-with-a-focus-on-style-and-fit-can-they-beat-boseRead 23 October 2026Tom's Guide says the LinkBuds Fit takes over for the LinkBuds S.

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Sony LinkBuds Fit18Reviewm.gsmarena.com/sony_unveils_linkbuds_open_with_open_design_linkbuds_fit_replace_the_linkbuds_s-amp-64762.phpRead 23 October 2026GSMArena says the LinkBuds Fit replaces the LinkBuds S and calls it the sequel to the LinkBuds S.19Reviewtomsguide.com/audio/sony-revives-linkbuds-series-with-a-focus-on-style-and-fit-can-they-beat-boseRead 23 October 2026Tom's Guide says the LinkBuds Fit takes over for the LinkBuds S.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$199.995Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original maker launch MSRP 199.99 USD. Later SoundGuys commerce widget 229.99 USD is excluded. Before US local sales tax. EUR VAT scope unproved.

$199.994Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026Exact US manufacturer MSRP USD 199.99, excluding tax. SoundGuys later USD 198 and current store prices are not launch MSRP.6Press releaseprnewswire.com/news-releases/sony-electronics-announces-the-new-linkbuds-s-earth-blue-noise-canceling-truly-wireless-headphones-made-from-water-dispenser-bottles-and-new-model-linkbuds-uc-for-microsoft-teams-301658003.htmlRead 5 October 2026Earth Blue US original MSRP also USD 199.99. No later retail amount substituted.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

GB, US, JP2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026This exact UK page establishes GB. US launch and Japanese product pages separately establish their own markets.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 20266Maker product pagesony.jp/headphone/products/LinkBuds_FitRead 5 October 2026

US, JP1Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 2026Current exact Sony Japan store offers this model for purchase. US availability is established separately by the original launch release.4Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026

ColoursiThe maker's own colour names

Black, White, Green, Pink, Violet5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original US maker launch lists Black, White, Green and US-only Violet Olivia edition. Separately sold accessory-cover colours are not earbud finishes.6Maker product pagesony.jp/headphone/products/LinkBuds_FitRead 5 October 2026Japanese current product lists base finishes including later Pink. Original US maker release separately proves US Violet Olivia edition.

Black, White, Ecru, Earth Blue1Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 2026Original Black, White and Ecru plus later Earth Blue. Ear-tip construction is common but identification markings differ by finish. No unproved regional SKU rows.4Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026Original White and Black at Sony US and Ecru exclusive Best Buy. Later Earth Blue separately sourced.6Press releaseprnewswire.com/news-releases/sony-electronics-announces-the-new-linkbuds-s-earth-blue-noise-canceling-truly-wireless-headphones-made-from-water-dispenser-bottles-and-new-model-linkbuds-uc-for-microsoft-teams-301658003.htmlRead 5 October 2026October 25, 2022 original Sony release adds Earth Blue. Its earlier colours have been available since May. Earth Blue is a later finish of the same LinkBuds S, not the LinkBuds UC for Teams announced in the same article.

Segment

Music2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

Music1Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 2026

Design

0 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

In-ear2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

In-ear3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 17 instructs sealing with a tip inside the canal. Exact diagrams show compact bodies without extending stems.4Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026

Bud shapeiStem describes an extending control or microphone stalk. Stemless describes a compact body without a stalk.

Stemless2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026

Stemless3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Exact parts and wearing diagrams show stemless bodies.

Use one bud aloneiWhich earbud can operate alone. This does not mean two earbuds can play from different sources.

Either bud3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Either bud3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 19-20 allow either unit with suitable settings. Service Link requires right. Assistant/control assignments can restrict one-ear operation.10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026

RGB lighting

Not available

Not available

Drivers and sound

5 of 17 differ

Drivers per budiAudio transducers in one earbud. Rows distinguish their type, acoustic role and published diameter. Do not count microphones.

ASony LinkBuds Fit

Type	Diameter (mm)
Dynamic	8.4

Source8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact LinkBuds Fit section explicitly 8.4 mm Dynamic DriverX, not borrowed merely because the page mentions WF1000XM5. Existing dynamic technology retained, no guessed dome/edge material or count.13Maker product pagesony.jp/headphone/products/LinkBuds_Fit/spec.htmlRead 8 October 2026Exact model specification lists 8.4 mm driver unit. Per-bud transducer count is not explicitly stated and is not inferred.

BSony LinkBuds S

Not available

Driver typeiPublished transducer technology. High-excursion, composite and neodymium do not by themselves establish a driver type.

Dynamic8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact named Dynamic Driver X 8.4 mm. Diaphragm combines different dome/edge materials, whose chemical identities are not published.

Dynamic2Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026Maker identifies closed dynamic transducer. Neodymium magnet is not treated as diaphragm material.17Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/4548736144873_f_0Read 5 October 2026

Driver sizeiLargest explicitly published circular driver diameter in one earbud. A rectangular driver width is not a diameter.

8.4mm=CalculatedFrom Drivers per bud

Not available

Drivers per budiTotal audio transducers in one earbud, summed from explicit driver quantities. A row with an unknown quantity makes the total unknown.

Not available

Not available

Diaphragm material

Not available

Not available

Frequency responseiPublished acoustic frequency response of the earbuds. Codec transmission bandwidth alone does not qualify. Conditions belong in the source note.

Not available

Not available

Impedance

Not available

Not available

SensitivityiPublished acoustic sensitivity. The electrical reference and frequency must be stated in sensitivity_reference or the source note.

Not available

Not available

Sensitivity reference

Not available

Not available

Max sample rateiHighest supported audio sample rate under the codec and source-device conditions in the source note. This does not establish lossless playback.

96kHz13Maker product pagesony.jp/headphone/products/LinkBuds_Fit/spec.htmlRead 8 October 2026Exact model A2DP transmission specification explicitly LDAC 96 kHz sampling at 990 kbps. Highest documented supported source condition. 20 Hz to 40 kHz is A2DP transmission bandwidth, not stored as acoustic response.

96kHz3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 166 publishes LDAC transmission at 96 kHz and 990 kbps. This is supported codec sample rate, not acoustic frequency response or guaranteed lossless sound.15Reviewwhathifi.com/reviews/sony-linkbuds-sRead 5 October 2026Exact LDAC supported source conditions. Other codecs need their own limits.

Max bit depthiHighest supported audio bit depth under the codec and source-device conditions in the source note. Bluetooth version alone does not establish this.

Not available

24bits15Reviewwhathifi.com/reviews/sony-linkbuds-sRead 5 October 2026Exact review explicitly describes supported LDAC input up to 24-bit/96 kHz at up to 990 kbps from compatible source such as Xperia 1 III. This is codec input capability, not DSEE upscaling or lossless transmission.

Adaptive EQiAn inner mic tunes the sound to your ear in real time

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Yes11Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_6.htmlRead 5 October 2026Exact certified 360 Reality Audio maker section optimizes using ear shape and headphone characteristics through companion app. It is not a hearing-test profile.

Onboard EQ

Not available

Yes9Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_4.htmlRead 5 October 2026

Custom EQ bandsiNumber of independently adjustable custom equalizer frequency bands. Availability may require current firmware, an app or a compatible device.

59Reviewwhathifi.com/reviews/sony-linkbuds-fitRead 5 October 2026Exact review Features states five custom EQ bands. App/firmware version unknown. CLEAR BASS separately controlled.

513Maker product pageexperience.sony-asia.com/ph/home/exploredetail/546Read 5 October 2026Exact maker article includes LinkBuds S in model list and explicitly five EQ frequencies plus separate Clear Bass. Five independently adjustable equalizer bands stored, bass shelf not counted as sixth.

EQ presetsiNamed equalizer sound presets. Noise-control modes and spatial-audio modes are separate features.

Not available

Relaxed, Bass Boost, Treble Boost9Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_4.htmlRead 5 October 2026Maker explicitly names Relaxed and Bass Boost among eight presets. Treble Boost is independently demonstrated by exact SoundGuys measurements. Unnamed presets are omitted.16Measurementsoundguys.com/sony-linkbuds-s-review-74398Read 5 October 2026Exact tested Treble Boost preset is explicitly named and compared against default.

Volume limit

Not available

Not available

Spatial audio

0 of 2 differ

Spatial audioiNamed spatial or surround audio processing supported with the source and platform conditions stated in the source note.

360 Reality Audio8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Compatible 360 Reality Audio streaming service, content and Sound Connect ear-shape analysis required. DSEE 96 kHz/24 bit upscaling is not accepted input resolution and is omitted from max digital input fields.

360 Reality Audio11Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_6.htmlRead 5 October 2026360 Reality Audio content/service required. Dolby Atmos spatial rendering through optional WLA-NS7 and compatible BRAVIA XR is a separate external-system scenario, not an unqualified native earbud codec.

Head trackingiSpatial audio changes with head movement. Static spatial processing alone does not qualify. Compatible device or content requirements belong in the source note.

Yes9Reviewwhathifi.com/reviews/sony-linkbuds-fitRead 5 October 2026Exact review Features explicitly supports head tracking. Compatible phone/content/app required, without claiming universal iOS tracking.

Yes12Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026Exact LinkBuds S firmware 4.3.1 previous-benefits section explicitly adds Head Tracking. Supported phone model and Android OS required. Current feature, not original firmware.

Noise cancelling

3 of 11 differ

Active noise cancelling

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Yes4Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 20267Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026

ANC typeiFeedforward uses exterior microphones. Feedback uses interior microphones. Hybrid uses both. Adaptive control is separate from microphone placement.

Not available

Hybrid7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026Exact Dual Noise Sensor Technology paragraph explicitly integrates feedforward and feedback methods. Activity/location profiles do not establish adaptive ANC-strength calibration or continuously blended audio.

ANC microphones in both earbudsiPhysical microphones used by ANC across the pair. A shared call and ANC microphone counts once. Case microphones and vibration sensors are excluded.

Not available

414Review52audio.com/archives/122319.htmlRead 5 October 2026Two MEMS per earbud explicitly used for active cancellation and call-noise pickup. Four across pair, overlapping call microphones.

Adaptive ANCiANC strength or calibration adjusts automatically to noise, fit or ear acoustics. The source note states the adjustment conditions.

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Auto NC Optimizer explicitly detects wearing fit and environment and continuously optimizes cancellation. This is separate from activity-based switching.

Not available

ANC levelsiNumber of selectable ANC strength levels. Excludes ANC off, transparency and activity profiles unless they explicitly set distinct strength levels.

Not available

Not available

ANC attenuation (claimed)iManufacturer maximum claimed noise attenuation. Frequency and measurement conditions belong in the source note. This is not reviewer-measured overall attenuation.

Not available

Not available

Transparency mode

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 20268Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026

Yes7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026

Adjustable transparency

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Pages 100-101 and app page 124 document changing ambient capture and Auto Ambient Sound sensitivity.8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Manual page 101 auto-adjusts ambient capture in ambient mode. This does not establish an ANC/transparency blend, so adaptive_audio_mode omitted.

Yes7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026Exact maker 20 ambient-level adjustment and Voice Focus. These levels are not ANC strength levels.

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Not available

Not available

Conversation detection

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Speak-to-Chat automatically pauses/mutes music when wearer speaks. Does not imply a medical hearing feature.

Yes7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026Speak-to-Chat pauses playback and changes to ambient sound on voice detection. User setup and detection sensitivity affect operation.

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Yes8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Physical wind reduction structure around mic. No selectable wind-processing mode assumed.

Yes7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 2026Maker describes mesh around microphones for reducing wind during ANC and ambient listening. Preliminary French sheet calls automatic wind cancellation, but this physical design is the precise published mechanism.

Measured

4 of 23 differ

Frequency response notes (measured)iMeasured by a reviewer, not claimed by the maker

Lab response has emphasized bass, a dip in low mids and uneven highs against the reviewer preference curve.11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact lab commentary. No graph extraction, ratings or MOS converted into dB.12Measurementsoundguys.com/how-we-testRead 5 October 2026Bruel & Kjaer 5128 fixture, SoundCheck and source preference curve.

The default measured response follows the review target through much of the bass and midrange. Response above about 2 kHz is reduced. The Treble Boost preset brings the high range closer to the target.16Measurementsoundguys.com/sony-linkbuds-s-review-74398Read 5 October 2026Published default and Treble Boost lab curves relative to SoundGuys target. Fixture revision, original firmware and codec unstated. Point 35 dB attenuation around 200 Hz does not establish a band-average isolation figure.

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

Not available

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

Not available

Not available

Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Consistency between fittings (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Harmonic distortion (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Sound leakage (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation, best (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Call quality notes (measured)iMeasured by a reviewer, not claimed by the maker

Standardized recordings show problems with street noise and reverberation, while wind was handled better.11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact recorded ideal/office/street/wind/reverberant speech samples. No numerical capsule count inferred.12Measurementsoundguys.com/how-we-testRead 5 October 2026Calibrated artificial mouth with simulated noise, wind and reverberation.

Quiet-condition recordings provide usable speech pickup. The published street-noise recording contains processing artifacts and reduced voice clarity.16Measurementsoundguys.com/sony-linkbuds-s-review-74398Read 5 October 2026Published ideal, office and street demos with explicit processing-artifact discussion. No numeric handling score or unlabelled codec inferred.

Mic low-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Bluetooth latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

2.4 GHz latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency in game mode (measured)iThe best case the buds can reach. Measured by a reviewer

Not available

Not available

Battery life (measured)iReviewer-tested operation from one full charge of the earbuds. Excludes case recharges. ANC, codec, connection, volume and tested edition belong in the row or source note.

ASony LinkBuds Fit

Hours (h)
6.77

Source11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Own standardized rundown 6 h 46 min (existing row retained). Exact review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. Runtime paragraph does not specify ANC, codec or exact host, so no flags inferred from its iPhone/computer discussion. LC3 extension is explicitly untested and omitted.12Measurementsoundguys.com/how-we-testRead 5 October 2026Standardized continuous music peaks 75 dB SPL. This does not establish an unstated ANC/codec for a particular sample.

BSony LinkBuds S

Hours (h)
5.68

Source16Measurementsoundguys.com/sony-linkbuds-s-review-74398Read 5 October 2026Exact review tested 5 hours 41 minutes with continuous real music peaking at 75 dB(SPL). ANC state, codec and original firmware not explicit in that paragraph and omitted. Informal experience of case total is not a measured full-case rundown.

Longest tested use per chargeiHighest earbuds-only duration among stored reviewer tests. Modes and settings may differ between tests and products.

6.77h=CalculatedFrom Battery life (measured)

5.68h=CalculatedFrom Battery life (measured)

Battery life with case (measured)iReviewer-tested total including earbuds and case recharges. Do not calculate this by multiplying one-charge runtime by claimed recharge count.

Not available

Not available

Full charge time (measured)iBuds in the case, 0 to 100 %. Measured by a reviewer

Not available

Not available

Weight per bud (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Microphones and calls

3 of 7 differ

Voice microphones in both earbudsiPhysical call and beamforming microphones across the pair. Excludes case microphones and vibration sensors. Shared ANC microphones can also count here when used for calls.

Not available

414Review52audio.com/archives/122319.htmlRead 5 October 2026Exact teardown describes two physical MEMS microphones in an earbud, both used for voice and noise cancellation. Four across the pair. Shared roles count once in total.

All microphones in both earbudsiEvery physical microphone across the pair, including call and ANC microphones. Shared microphones count once. Excludes the charging case and voice vibration sensors.

Not available

414Review52audio.com/archives/122319.htmlRead 5 October 2026Two MEMS per earbud, four across pair. Physical voice and ANC roles overlap. Motion and IR sensors not counted.

Bone conduction voice sensoriA dedicated bone or jaw conduction sensor for detecting speech vibrations. A microphone or speech-detecting accelerometer alone does not prove this architecture.

Not available

Not available

Mic noise reduction

AI7Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_4.htmlRead 5 October 2026Exact model maker call paragraph explicitly AI-trained separation of wearer voice and environmental noise. Published physical voice/total capsule counts not found. Internal microphone is expressly used for calls, so exterior diagram alone is incomplete.

AI8Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_3.htmlRead 5 October 2026Precise Voice Pickup algorithm explicitly trained on more than 500 million voice samples, separating wearer voice from environmental noise. Inner microphones also used for calls. This is voice noise reduction, not merely DSEE music upscaling.

Call audio bandwidthiHighest supported call-audio bandwidth. Compatible phone, operating system, call app or network requirements belong in the source note.

Not available

Not available

Mic mute controliAn earbud control that mutes the microphone during calls. Includes touch or pressure gestures and physical buttons. Phone/app-only controls do not qualify.

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 100 explicitly returns own voice through the headset microphone during calls.

Connectivity

4 of 18 differ

Chip

Sony Integrated Processor V25Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Exact product launch explicitly names Integrated Processor V2 in this model, not inferred from sibling hardware.

Sony Integrated Processor V14Press releaseprnewswire.com/news-releases/sony-electronics-introduces-additional-model-to-linkbuds-series-a-new-frontier-for-headphones--linkbuds-s-301549817.htmlRead 5 October 2026Original release explicitly Sony Integrated Processor V1. Open LinkBuds and LinkBuds Fit processors are not borrowed.7Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_2.htmlRead 5 October 20269Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_4.htmlRead 5 October 202617Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/4548736144873_f_0Read 5 October 2026

Connections

Bluetooth3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Bluetooth3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Bluetooth

5.31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original exact manual printed pages 153-154 explicitly publish Bluetooth 5.3, named codecs and profiles.

5.22Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Bluetooth codecs

SBC, AAC, LDAC, LC31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026LC3 needs compatible LE Audio Android hardware and app setup. Fit LDAC uses Classic Audio. No Auracast inferred from LC3 or Bluetooth 5.3.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

SBC, AAC, LDAC, LC32Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026SBC/AAC/LDAC for Classic Audio and LC3 for later LE Audio. LE features are not claimed as original May 2022 firmware.3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Bluetooth profiles

A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP2Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026Original A2DP/AVRCP/HFP/HSP plus current TMAP/CSIP/MCP/VCP/CCP LE profiles. Current specification and manual agree.3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

LE Audio

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 39-41 and 97 explicitly LC3 / LE Audio with supported Android device and re-pairing. This is actual later feature support, not inferred from Bluetooth 5.2.12Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026Later update explicitly supported LE Audio with Xperia 1 V/5 V and expanded compatible-device list. No Auracast support inferred.

Auracast

Not available

Not available

MultipointiConcurrent Bluetooth connections to multiple source devices. Pairing memory and switching through a manufacturer account alone do not qualify.

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Two concurrent sources in Classic Audio, one playing stream. App list marks multipoint unavailable during LE Audio. No simultaneous LC3 multipoint claim.

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 76-77 two simultaneous Classic Audio source links and one playing stream at a time. Current app page 118 excludes multipoint under LE Audio.6Press releaseprnewswire.com/news-releases/sony-electronics-announces-the-new-linkbuds-s-earth-blue-noise-canceling-truly-wireless-headphones-made-from-water-dispenser-bottles-and-new-model-linkbuds-uc-for-microsoft-teams-301658003.htmlRead 5 October 2026Release states a later software update for simultaneous two-device connections, so this feature is qualified as later firmware.10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 202612Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026

Multipoint devicesiMaximum source devices concurrently connected by Bluetooth, not the number remembered in pairing history.

23Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

23Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 202610Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Yes10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Current exact maker explicitly says high-quality LDAC remains available in multipoint. This does not apply to LE Audio multipoint.

Paired devices rememberediMaximum remembered Bluetooth source pairings. This is separate from simultaneous multipoint connections.

83Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

810Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Exact maker up to eight remembered devices, separate from two simultaneous source connections.

Automatic switching between own devicesiThrough the maker's account

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Printed page 85 explicitly Google audio switch on compatible Android 8+ devices, using Fast Pair. Separate from Sony Auto Switch to LinkBuds Speaker.

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Android Google audio switch chapter explicitly requires Google Fast Pair. Windows 10/11 chapters explicitly document Microsoft Swift Pair.

Google Fast Pair, Microsoft Swift Pair10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Exact Google Fast Pair and Windows 10/11 quick pairing. Manual page 49 explicitly names Microsoft Swift Pair and Windows 10 version 1803 requirement.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate line-of-sight 10 m. Obstacles, interference, antenna, reception and software conditions affect actual range.

10m2Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026Approximately 10 m line of sight, not a guaranteed indoor range. Manual states obstacle and interference limitations.3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 165-166 approximate 10 m line of sight and interference caveat.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

Simultaneous 2.4 GHz and Bluetooth audioiBoth connection types can play audio together. Quick switching between independent modes does not qualify.

Not available

Not available

Latency

None of 3 known

Low latency mode

Not available

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

1 of 4 differ

PlatformsiPlatforms with documented audio support. App availability and advanced features can be more limited. Edition-specific support is listed in variants.

Android, iOS, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Android, iOS, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 35-48 Android/iPhone, 49-57 Windows and 58-70 macOS. No console Bluetooth microphone compatibility is inferred.

Connection per platformiDocumented audio connection for each platform. USB-C phone routes require a compatible port. Platform edition and microphone restrictions belong in source notes or feature requirements.

ASony LinkBuds Fit

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact Android/iPhone/Windows/Mac pairing chapters and computer calls chapter. Classic phone/desktop calls need compatible HFP/HSP app settings. LE Audio availability is separately restricted.

BSony LinkBuds S

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Bluetooth music via A2DP and calls via HFP/HSP. Exact manual computer-call chapter covers video conferencing. Required Bluetooth adapter and application support stated. macOS chapter specifies 10.15 or later.

Features that need a specific deviceiDevice, operating system, firmware, codec, content, account or region requirements for a named feature.

ASony LinkBuds Fit

Feature	Needs
LE Audio / LC3	Compatible Android smartphone and Sound Connect LE Audio setup. Classic-only multipoint, Quick Access and some voice-assistant functions become unavailable.
Google audio switch	Compatible Android 8 or later devices connected through Google Fast Pair.
Head tracking	Android 13+ head-tracking-compatible phone. 360 Reality Audio head tracking also requires certified phone and compatible 360 content. Amazon Music is excluded. Android multichannel head tracking depends on supported app/content. Xperia 1 V multichannel playback is limited to YouTube as stated by maker.
LDAC high-resolution playback	LDAC-compatible source and Sony Sound Connect setup. Maker specifies 96 kHz sampling at 990 kbps for published A2DP bandwidth. High-resolution streaming also requires Android 10+ compatible player. This is not lossless playback or an acoustic frequency-response claim.
DSEE Extreme	Enable in Sony Sound Connect. Maker describes upsampling compressed CD/MP3 material up to 96 kHz/24-bit with SBC/AAC/LDAC. This does not establish incoming source bit depth, so no max_bit_depth_bits inferred.

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact manual Classic/LE Audio and Google audio switch conditions. Spatial phone/content requirements independently retained in the source describing tracking.8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact head-tracking requirements: Android 13+, compatible phone/content/app, Amazon Music excluded for 360 Reality Audio. DSEE Extreme 96/24 is upsampling and not incoming source capability.

BSony LinkBuds S

Feature	Needs
LC3 and LE Audio	Updated headset firmware, a maker-supported LE Audio Android device, and LE Audio Priority selected in the companion app. Delete Classic Audio pairing and pair again. Multipoint and several app functions are unavailable during LE Audio.
Head tracking	Updated headset firmware, supported Android phone and OS, companion app setup and a spatial-audio-compatible service. Historical Locatone integration ended in April 2025 and is not required for the current Android feature.
360 Reality Audio personalization	Companion app ear-shape analysis, compatible content and streaming service. Subscription and regional availability may apply.
LDAC multipoint	Current firmware and Connect to 2 devices simultaneously enabled in the companion app. It routes one audio stream at a time.
Google audio switch	Android 8.0 or later, Google Play, Google Fast Pair pairing and the same Google account on the Android devices. This is separate from Sony Auto Switch with a compatible speaker.
Single-bud use	Either bud works with suitable control assignments. Service Link requires the right bud. Google Assistant or Alexa assignment can limit which bud works alone.
Consecutive-tap volume controls	Updated headset firmware. Four or more left taps lower music volume and right taps raise it. During calls, adjust volume on the phone or app.

Source3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Exact pages 19-20, 39-41, 76-78, 118 and 120 retain feature restrictions, current versus launch firmware and supported platform conditions.6Press releaseprnewswire.com/news-releases/sony-electronics-announces-the-new-linkbuds-s-earth-blue-noise-canceling-truly-wireless-headphones-made-from-water-dispenser-bottles-and-new-model-linkbuds-uc-for-microsoft-teams-301658003.htmlRead 5 October 20268Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_3.htmlRead 5 October 2026Calls require Bluetooth HFP/HSP support. Current Android head tracking separately supported by firmware and support article. Historical Locatone is not treated as a current prerequisite.10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Google audio switch needs Android 8+, Google Play, same Google account and Fast Pair. Current Sony Auto Switch with a compatible speaker is a separate function and is not generic automatic switching between source devices.11Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_6.htmlRead 5 October 2026Companion app or Spatial Sound Personalizer ear photos plus supported service/content. No subscription-free or region-universal promise.12Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026Later two-device connections, volume taps, LE Audio, head tracking and new Find My Device are listed explicitly. New finding is restricted to dedicated Classic Audio.

Official licence

Not available

Not available

Battery and charging

8 of 13 differ

Battery per budiBattery cell capacity of one earbud. The source note states typical or rated capacity. Charging input current is not capacity.

Not available

Not available

User-replaceable earbud batteryiThe maker documents normal battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

No14Owner's manualbhphotovideo.com/lit_files/1165249.pdfRead 8 October 2026Original reference guide page 1 explicitly non-replaceable button/coin cells and identifies Z35FH. This supports the earbud coin-cell flag only. The charging case battery replacement flag remains unknown, not inferred from recycling instructions.

Not available

Claimed battery lifeiManufacturer maximum runtime under the stated mode, codec and spatial processing state. Name the spatial or immersive processing mode and other conditions in source notes. Omit unspecified settings. with_case false means one charge of the earbuds. true means earbuds plus case recharges.

ASony LinkBuds Fit

Mode	Codec	Includes case recharges	Hours (h)
ANC on	LDAC	No	3.5
Transparency	LDAC	No	3.5
ANC off	LDAC	No	4.5
ANC on	AAC	No	5.5
Transparency	AAC	No	5.5
ANC off	AAC	No	8
ANC on	SBC	No	5
Transparency	SBC	No	5
ANC off	SBC	No	7.5
ANC on	LC3	No	4.5
Transparency	LC3	No	4.5
ANC off	LC3	No	7.5
Call	Not available	No	4
ANC on	Not available	Yes	21

Source4Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact page 28 codec/mode runtime table. EQ, DSEE Extreme, Speak-to-Chat, voice wake, Service Link and Auto Ambient Sound shorten runtime. Call 4h is ANC on/off. Transparency-call 3.5 h does not fit call enum and is omitted.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Body explicitly 21 h including case. Footnote 9 specifies noise cancellation and Bluetooth. Recharge-count marketing is not multiplied into a different total. Codec unstated.

BSony LinkBuds S

Mode	Codec	Includes case recharges	Hours (h)
ANC on	LDAC	No	3.5
Transparency	LDAC	No	3.5
ANC off	LDAC	No	4.5
ANC on	AAC	No	6
Transparency	AAC	No	6
ANC off	AAC	No	9
ANC on	SBC	No	6
Transparency	SBC	No	6
ANC off	SBC	No	9
ANC on	LC3	No	5.5
Transparency	LC3	No	5.5
ANC off	LC3	No	9
ANC on	AAC	Yes	20
ANC off	AAC	Yes	30
Call	Not available	No	3.5

Source3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 27-28 separate LDAC/AAC/SBC/LC3 playback with ANC, ambient and both off. EQ, DSEE Extreme, Speak-to-Chat, wake-word assistant and Service Link reduce listed maxima. Volume and original measurement firmware are not stated. Calls are up to 3.5 hours in all three noise-control states, codec unstated. Standby 8.5 hours ANC, 8 ambient and 16 both off cannot be represented by existing runtime modes and are not stored.10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Maker with-case 20 hours ANC on and 30 hours off. Footnote identifies AAC, DSEE/EQ off and all other settings default. No nominal full-recharge multiplication.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

8h=CalculatedFrom Claimed battery life

9h=CalculatedFrom Claimed battery life

Playback per charge with ANC (claimed)iHighest claimed earbuds-only playback with ANC enabled. Codec and spatial-audio conditions belong in the source note.

5.5h=CalculatedFrom Claimed battery life

6h=CalculatedFrom Claimed battery life

Playback per charge without ANC (claimed)iHighest claimed earbuds-only playback with ANC disabled. Codec and volume conditions belong in the source note.

8h=CalculatedFrom Claimed battery life

9h=CalculatedFrom Claimed battery life

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

21h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Total with case and ANC (claimed)iClaimed total playback with ANC, including the initial earbud charge and case recharges.

21h=CalculatedFrom Claimed battery life

20h=CalculatedFrom Claimed battery life

Talk time (claimed)

4h=CalculatedFrom Claimed battery life

3.5h=CalculatedFrom Claimed battery life

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

120min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Approximate earbuds-only full charge in case. Case-only charging is separately published.

120min3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 25 approximately two hours for empty earbuds charging in a previously charged case. Page 24 empty-to-full combined earbuds/case is about three hours. Page 25 recommends ambient 15 to 35 degrees C. Page 165 rated charging-temperature range is 5 to 35 degrees C.

Charging guidanceiPublished charging guidance or estimates that do not separate earbuds and case. Preserve the maker’s component scope and limits. Do not assign an unspecified or combined estimate to a component-specific numeric field.

Not available

Not available

Quick charge timeiCharge duration corresponding to quick_charge_playback_h. Source note states earbuds-only or case-inclusive charging and playback settings.

5min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

5min3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 202610Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

1h3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Maker approximately one hour of earbud music after five-minute charging. Codec/volume unspecified for this quick-charge claim. Excludes case-inclusive runtime.

1h3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 27 approximately one hour after five-minute charge. Exact Japan feature page footnote independently specifies AAC, ANC on, DSEE/EQ off and all other functions default.10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Five-minute charge provides up to one hour, AAC/ANC on, DSEE/EQ off, other settings default. Earbuds-only playback.

Charging case

2 of 10 differ

Case batteryiCharging-case battery cell capacity. The source note distinguishes typical, rated and output capacity. USB output capacity alone does not qualify.

Not available

450mAh14Review52audio.com/archives/122319.htmlRead 5 October 2026Original June 20, 2022 exact WF-LS900N teardown: case label explicitly rated 450 mAh/1.732 Wh, nominal 3.85 V, SP 731834 pack. Earbud ZeniPower Z52H only 0.21 Wh/3.85 V is not converted to rounded mAh or replaced by 75 mAh aftermarket listings.

User-replaceable case batteryiThe maker documents normal case battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Case charging port

USB-C3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

USB-C3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

180min3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

180min3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 165 case charging approximately three hours. Pages 24-25 define empty-to-full USB charging with supplied cable and a USB adapter able to supply at least 500 mA. Preliminary sheet calling earbuds three hours conflates the combined result.

Wireless charging

No11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact charging paragraph explicitly USB-only and no wireless charging. Fit FAQ footer says Yes, contradicting its body. Primary maker table/manual only publish USB charging. Detailed tested body takes precedence over generic footer.

No5Reviewtechradar.com/reviews/sony-linkbuds-sRead 5 October 2026Exact review explicitly states no wireless charging compatibility. USB-C case charging only.

Wireless standardsiDocumented case charging standards or supported chargers. Magnetic alignment alone does not establish Qi2 certification.

Not available

Not available

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Not available

Not available

Screen on case

Not available

Not available

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

No11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact-model review feature assessment explicitly No transmitter in case. Review unit WFLS910NB.UC, firmware 1.2.0 and Sound Connect 11.0.2. This negative capability is not inferred from a port photo.

Not available

Controls

3 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Touch, Head gestures, Voice commands3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Touch, Voice commands3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Touch3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Touch3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 21 left consecutive taps lower and right raise music volume. Page 100 explicitly says call volume cannot be adjusted on the buds and must use phone/app.

Gestures

Wide Area Tap on earbud or nearby skin, Head nod to accept a call, Head shake to reject a call3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Single tap, Double tap, Triple tap, Four or more consecutive taps, Touch and hold3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 21 single, double, triple, four-or-more taps and hold. Consecutive-tap volume support is later firmware. No original LinkBuds wide-area skin taps copied.

Remappable controls

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026App reassigns left/right function groups, voice functions and Quick Access. No arbitrary individual-gesture remapping inferred.

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026

Voice assistant

Amazon Alexa, Google app, Siri3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Separate Amazon Alexa, Android Google app and iPhone Siri chapters. Cloud/device/app/region restrictions apply. Some voice routes and Quick Access are unavailable under LE Audio. On-device playback Voice Control is represented in control_types, not invented as a cloud assistant.

Google Assistant, Amazon Alexa, Siri3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 202610Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026

Sensors and health

1 of 9 differ

In-ear detection

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Parts diagrams name built-in IR sensors. App enables automatic pause/resume and power-off when removed.

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 202610Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026

Sensors

Infrared wear sensors3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Infrared wearing sensors, Motion sensor3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 13 identifies IR wearing sensors. Motion sensing is separately maker-published. A speech-detecting motion sensor is not claimed as dedicated bone-conduction pickup.8Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_3.htmlRead 5 October 2026Maker explicitly identifies internal motion sensor for historical spatial application head tracking. Locatone integration ended April 21, 2025 and is not presented as a current service.14Review52audio.com/archives/122319.htmlRead 5 October 2026Teardown identifies optical wearing sensor and 5L1DR accelerometer. This does not establish bone/jaw speech-conduction pickup.

Heart rate sensor

Not available

Not available

Skin temperature sensingiA documented skin temperature sensor. This is separate from the operating temperature range or a heart-rate sensor.

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

Hearing testiA documented hearing assessment feature, including consumer sound-personalization tests. Medical diagnostic clearance must be stated separately.

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

2 of 7 differ

Ear tips includediTip sizes supplied with the product, including the pair fitted to the earbuds. Do not list separately sold sizes as included.

SS, S, M, L3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original manual page 9 exact standard box includes SS/S/M/L tips, two of each. M tips are fitted at purchase.

SS, S, M, LL3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026SS/S/M/LL, two of each, M preinstalled. Page 10 explicitly says L is not supplied and sold separately. Preliminary French sheet three S/M/L sizes is overruled by the original manual.

Ear tip materials

Silicone11Reviewsoundguys.com/sony-linkbuds-fit-review-127506Read 8 October 2026Exact review use section explicitly says the tips are made from a single piece of silicone.

Silicone3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Hybrid silicone rubber is Sony naming for silicone construction, not proof of silicone/foam hybrid tips.

StabilisersiPhysical stabilizing fittings or structures. Stability bands are separate from fins, wings and ear hooks.

Fins3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Not available

Ear tip fit test

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual page 10 explicitly measures ear-tip air-tightness to find optimal tips, distinct from general wearing-condition check.

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 17-18 app determines which supplied tips seal best. This is an acoustic fit test, not a hearing assessment.

Dust and water rating, buds

IPX44Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Exact Fit manual publishes IPX4 splash resistance for earbuds only. Sound conduit, air holes and microphone holes excluded. Charging case explicitly not water resistant.

IPX43Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 133 exact IPX4 equivalent for earbuds only. Sound conduits, air holes and microphone parts are not completely watertight. Case explicitly not water resistant. No case IP class inferred.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

Sony | Sound Connect3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Sony | Sound Connect9Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_4.htmlRead 5 October 2026Exact maker names Sound Connect, formerly Headphones Connect. Original manual old branding is retained only as historical source wording.12Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026Firmware page explicitly current Sony Sound Connect app. Latest update requires Android 10+ or iOS 16+ and app 12.3+.

App platforms

Android, iOS3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Android, iOS3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Pages 34 and 120 explicitly Android/iPhone app setup. Current firmware update names Sony Sound Connect.

User firmware updates

Yes3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

Yes3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 118 explicitly software updates through companion app.12Maker product pagesony.co.uk/electronics/support/software/00278794Read 5 October 2026

Finding network

Not available

Last location in the app10Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_5.htmlRead 5 October 2026Current exact page describes last Android connection location/time using Google app after Fast Pair. Firmware adds new Find My Device support, but offline crowd-network eligibility is not explicit in the reopened exact documentation. Only proved last-location capability stored.

Precision findingiUWB in the case

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Live translation

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Dimensions and weight

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Weight per budiMass of one earbud. Tip size and approximate values belong in the source note. Do not store pair or case-inclusive mass.

4.9g(0.2 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Approximate one-earbud mass, including M ear tip and attached fitting supporter.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate one-earbud weight with M tip and fitting supporter.

4.8g(0.2 oz)2Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026Approximate 4.8 g per unit, with M tips confirmed by manual page 165.3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 165 approximately 4.8 g each including M tips. Pair mass not stored as single-bud weight.

Bud dimensionsiDimensions of one earbud on the explicitly identified width, height and depth axes. An unlabeled tuple cannot establish those axes.

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Case weightiCharging case mass excluding earbuds. Case-inclusive product mass does not qualify unless the source explicitly gives the empty-case figure.

41g(1.4 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Exact charging-case mass, separate from earbuds.3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Manual separately publishes charging-case weight, excluding earbud mass.

35g(1.2 oz)3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 165 approximately 35 g charging case, excluding buds. SoundGuys 42 g in-case figure is not substituted.

Case dimensionsiCharging-case width, height and depth on explicitly identified source axes. Report conflicting axis labels rather than reorder a tuple by appearance.

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Certifications

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Hi-Res AudioiThe Japan Audio Society logos. Hi-Res Audio Wireless is also written Hi-Res Wireless Audio.

Hi-Res Audio Wireless8Maker product pagesony.jp/headphone/products/LinkBuds_Fit/feature_2.htmlRead 8 October 2026Exact model describes wireless high-resolution playback through LDAC and names its Hi-Res Audio Wireless certification. 990 kbps LDAC high-res content condition, not a lossless claim.

Hi-Res Audio Wireless9Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_4.htmlRead 5 October 2026Exact model Hi-Res Audio Wireless / LDAC conditions. DSEE Extreme upscales to 96 kHz/24 bit and does not establish accepted input bit depth by itself.17Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/4548736144873_f_0Read 5 October 2026

Communication certifications

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FCC IDs

AK8YY297514Owner's manualbhphotovideo.com/lit_files/1165249.pdfRead 8 October 2026Original Sony Reference Guide 5-058-500-11(1), ©2024 Sony, exact LinkBuds Fit/YY2975. Page 1 headset regulatory block explicitly FCC ID AK8YY2975. Public B&H mirror of original two-page maker PDF.

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Other certifications

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360 Reality Audio certified11Maker product pagesony.jp/headphone/products/LinkBuds_S/feature_6.htmlRead 5 October 2026

In the box

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In the box

Sony LinkBuds Fit earbuds with Air Fitting Supporters, Charging case, USB-A to USB-C cable, Documents, Soft fitting earbud tips (SS, S, M, L)3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Complete standard box list. Factory Air Fitting Supporters are attached. Separately sold covers/supporter colours and Olivia edition promotions excluded.

LinkBuds S earbuds, Charging case, Hybrid silicone rubber ear tips (SS, S, M, LL pairs), USB-A to USB-C cable3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 9 complete package list: earbuds, charging case, one USB-A/C cable and four pairs of hybrid silicone rubber tips. Manuals and warranty card observed in a regional teardown are not assigned to every international box.

Cables included

ASony LinkBuds Fit

Type	Count
USB-A to USB-C charging cable	1

Source3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026

BSony LinkBuds S

Type	Length (m)	Count
USB-A to USB-C cable	0.2	1

Source3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Page 9 approximately 20 cm USB-A to USB-C, one cable.

Links

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Product page

www.sony.co.uk/headphones/products/linkbuds-fit2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 5 October 2026Exact model maker product page. Fit is sealed-tip design.

www.sony.jp/headphone/products/LinkBuds_S1Maker product pagesony.jp/headphone/products/LinkBuds_SRead 5 October 2026Exact Sony Japan LinkBuds S generation and current storefront. The smaller original open-ring LinkBuds WF-L900 and later LinkBuds Fit WF-LS910N are excluded.

Spec sheet

www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specifications1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-ls910n/specificationsRead 5 October 2026Full exact maker support technical table. Bluetooth transmission bandwidth is not acoustic frequency response. Unlabelled case dimensions are not assigned to width/height/depth. Published driver diameter is 8.4 mm, with dynamic technology separately documented. Physical quantity per earbud remains unproved. The driver row preserves the proved size/type without asserting a quantity, so total driver count remains unknown.

www.sony.jp/headphone/products/LinkBuds_S/spec.html2Maker product pagesony.jp/headphone/products/LinkBuds_S/spec.htmlRead 5 October 2026Exact maker specification table, read alongside current original 166-page manual. Proved driver diameter is 5 mm, but the physical per-bud transducer count is not explicitly stated. Optional driver table is omitted because its missing count would derive one.17Maker spec sheet (PDF)boulanger.scene7.com/is/content/Boulanger/4548736144873_f_0Read 5 October 2026Original Sony France preliminary two-page product sheet, reopened from distributor. 5 mm dynamic and V1 agree. Three-tip S/M/L package, 3-hour earbud charge and 3 h 50 min call claims conflict with original manual and are rejected. Printed case axes 42.8 x 60 x 27.6 mm in width/height/depth order conflict with other maker tuple conventions, so case dimensions remain absent. Numeric diameter retained here without unsafe count-derived table.

Manual

helpguide.sony.net/mdr/2975/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/2975/v1/en/print.pdfRead 5 October 2026Original exact English guide 154 pages. Box page 9, runtime page 28, specifications pages 153-154, app pages 124-125 inspected.

helpguide.sony.net/mdr/linkbudss/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/linkbudss/v1/en/print.pdfRead 5 October 2026Exact original YY2950 / WF-LS900N 166-page Help Guide, current revision 5-035-792-11(8), copyright 2022.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

None of 1 known

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

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Both are also in the API. Back to all earbuds.