Earbuds / Compare

Bose QuietComfort Earbuds (2024) vs Sony LinkBuds Fit

A

Product A: Bose

QuietComfort Earbuds (2024)

68 of 166 known

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B

Product B: Sony

LinkBuds Fit

84 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ABose QuietComfort Earbuds (2024)

BSony LinkBuds Fit

General

7 of 8 differ

Series

Not available

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

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

442318, 318L, 318R, 888507-01002Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 4 and 6: case model 442318, left earbud 318L, right earbud 318R. SoundGuys lists 888507-0100 for the tested unit.

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

GTIN / EAN

Not available

Not available

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

18 September 20241Press releasebose.com/pressroom/bose-quietcomfort-earbuds-second-genRead 10 October 2026September 18, 2024 launch announcement.

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.

Status

Available3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose.com US listing in stock on the access date.

Not available

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

Not available

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.

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

Not available

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

$1791Press releasebose.com/pressroom/bose-quietcomfort-earbuds-second-genRead 10 October 2026Press release: available starting today for $179. US price, sales tax not included.

$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.

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.

US, CA, GB, DE, FR4Maker product pagebose.de/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose Germany store offers the product in EUR.5Maker product pagebose.co.uk/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose UK store offers the product in GBP.6Maker product pagebose.fr/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose France store offers the product in EUR.7Maker product pagebose.ca/en/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose Canada store offers the product in CAD.

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

ColoursiThe maker's own colour names

Black, White Smoke, Chilled Lilac, Dewdrop Mint, Ice Blue, Petal Pink, Rosewood Mauve3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Color swatches of this product on the page. Black, White Smoke and Chilled Lilac are the launch colors. The others were added later.

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.

Segment

Not available

Music2Maker product pagesony.co.uk/headphones/products/linkbuds-fitRead 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-ear2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 14: the eartip rests at the opening of the ear canal and makes a seal.

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

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

Stemless9Reviewsoundguys.com/bose-quietcomfort-earbuds-2024-review-124327Read 10 October 2026Review says the earbuds rest within the ear with no stem protruding past it.

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

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

Either bud3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026FAQ: you can use either the left or the right bud independently. Both buds are best for noise cancelling.

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

ABose QuietComfort Earbuds (2024)

Not available

BSony 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.

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

Not available

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.

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

Not available

8.4mm=CalculatedFrom Drivers per bud

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.

Not available

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.

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

Not available

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

Not available

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

Onboard EQ

Not available

Not available

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

51Press releasebose.com/pressroom/bose-quietcomfort-earbuds-second-genRead 10 October 2026Press release: five-band adjustable EQ in the Bose QC Earbuds app.

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

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

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 2 differ

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

Not available

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.

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

Not available

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.

Noise cancelling

3 of 11 differ

Active noise cancelling

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 31: Quiet mode gives full noise cancellation. Aware mode gives full transparency. Off is also available.

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

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

Not available

Not available

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

Not available

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

Not available

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.

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

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 31: Aware 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

Adjustable transparency

Not available

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.

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

Not available

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.

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

Yes3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026FAQ on calls: the microphone system adapts to the environment to isolate your voice from background noise and wind. This is call processing and not a physical wind design.

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.

Measured

4 of 23 differ

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

With ANC on, the response has more sub-bass than the SoundGuys headphone preference curve. It under-emphasizes the mids and over-emphasizes treble. With ANC off the bass emphasis is lower.10Measurementsoundguys.com/bose-quietcomfort-earbuds-2024-review-124327Read 10 October 2026Objective Measurements section. Firmware 1.1.2, Bose QC Earbuds app 2.0.2, default settings. No numeric deviation stored.

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.

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

Voices are clear in ideal conditions and usable in most environments. Some background noise stays audible in the simulated office test.10Measurementsoundguys.com/bose-quietcomfort-earbuds-2024-review-124327Read 10 October 2026Microphone demos in ideal, office, street, windy and reverberant conditions.

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.

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.

ABose QuietComfort Earbuds (2024)

ANC	Hours (h)
Yes	9

Source11Reviewtechradar.com/audio/earbuds-airpods/bose-quietcomfort-earbuds-2024-reviewRead 10 October 2026Reviewer testing: the buds hit nine hours with ANC on. Volume, codec and method are not stated. Earbuds only, one charge.

BSony 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.

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

9h=CalculatedFrom Battery life (measured)

6.77h=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

4 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

Not available

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.

61Press releasebose.com/pressroom/bose-quietcomfort-earbuds-second-genRead 10 October 2026Press release: three microphones in each bud, six microphones working together for noise cancellation and voice pickup.

Not available

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

Not available

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.

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.

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 26: Fast Mute can be assigned to a touch control in the Bose QCE app.

Not available

SidetoneiHear your own voice in calls

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 26: sidetones are managed in the Bose QCE app under Smart Calls.

Not available

Connectivity

8 of 18 differ

Chip

Not available

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.

Connections

Bluetooth3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Wireless Connectivity row lists Bluetooth profiles only. The USB cable is for charging.

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

Bluetooth

5.31Press releasebose.com/pressroom/bose-quietcomfort-earbuds-second-genRead 10 October 2026Press release: advanced Bluetooth 5.3. SoundGuys and What Hi-Fi also list 5.3.

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.

Bluetooth codecs

SBC, AAC8Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-2024Read 10 October 2026Tech specs and Features: SBC and AAC, no aptX. TechRadar also lists SBC and AAC. The maker does not name 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

Bluetooth profiles

A2DP, HFP, AVRCP3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Wireless Connectivity row: A2DP Bluetooth Audio Streaming, HFP Bluetooth, AVRCP Bluetooth.

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

LE Audio

Not available

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

Auracast

Not available

Not available

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

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 40: connected to up to two devices at a time. Audio plays from one device at a time.

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.

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

22Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 41: two devices connected at once.

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

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

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

52Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 40: up to five devices in the earbuds device list.

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

Automatic switching between own devicesiThrough the maker's account

Not available

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.

Fast pairing

Not available

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.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

9m2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 41: range of 30 ft or 9 m.

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.

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

1 of 3 differ

Low latency mode

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 29: low latency Bluetooth audio, enabled in the Bose QCE app.

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 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, iOS9Reviewsoundguys.com/bose-quietcomfort-earbuds-2024-review-124327Read 10 October 2026FAQ: pairs with a PC or any Bluetooth device, and the review used an iPhone. The maker lists apps for Android and iOS.

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

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.

ABose QuietComfort Earbuds (2024)

Not available

BSony 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.

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

ABose QuietComfort Earbuds (2024)

Feature	Needs
Voice control	The Bose QCE app must be running on the device, open or in the background.
Remote selfie	Set up in the Bose QCE app and the camera app open on the device.

Source2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 27: the Bose QCE app must be running, open or in the background, to use voice control.3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026FAQ on remote selfie: set it up in the Bose QCE app, open the camera app, then say Hey Headphones Take Photo or use the assigned touch control.

BSony 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.

Official licence

Not available

Not available

Battery and charging

10 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.

No2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 3: the product contains non-replaceable batteries. Printed page 5: do not attempt to remove the lithium-ion battery.

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.

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.

ABose QuietComfort Earbuds (2024)

Mode	Includes case recharges	Hours (h)
ANC on	No	8.5
ANC on	Yes	30

Source2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 37. Bose test June 2024: A2DP, IEC 60268-1 pink noise, 75 dB SPL, 3-band EQ at zero, Quiet mode (full noise cancellation). Up to 8.5 h per charge. Up to 2.5 full earbud recharges from the case for up to 30 h of listening, stored as the with-case total. The maker product page footnote says 9 h and 31.5 h instead. The guide is preferred. Codec not stated.

BSony 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.

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.

8.5h=CalculatedFrom Claimed battery life

8h=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.

8.5h=CalculatedFrom Claimed battery life

5.5h=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.

Not available

8h=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.

30h=CalculatedFrom Claimed battery life

21h=CalculatedFrom Claimed battery life

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

30h=CalculatedFrom Claimed battery life

21h=CalculatedFrom Claimed battery life

Talk time (claimed)

Not available

4h=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.

90min2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 37: earbuds up to 1.5 hours. Bose test: depleted earbuds in a fully charged case.

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.

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.

20min2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 37: a 20-minute charge.

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

3h2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 37: up to 3 hours of earbud playback after 20 minutes. Quiet mode, 75 dB SPL, 3-band EQ at zero.

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.

Charging case

5 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.

300mAh2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 6 lists Output Capacity 300 mAh on the line with the charging case input rating and output current. The label gives no typical or rated qualifier. It is read as the case battery capacity.

Not available

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.

No2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 3 gives the same statement for the product, which includes the charging case.

Not available

Case charging port

USB-C2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 34: USB-C port on the back of the charging case.

USB-C3Owner's manualhelpguide.sony.net/mdr/2975/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.

120min2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 37: charging case up to 2 hours. The charging method is not stated.

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

Wireless charging

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 34: a compatible third-party wireless charger, not provided, charges the case.

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.

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.

Not available

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.

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, Voice commands2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed pages 24 to 28: touch surface on both earbuds and voice control with Hey headphones.

Touch, Head gestures, Voice commands3Owner's manualhelpguide.sony.net/mdr/2975/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.

Touch2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 25: tap then touch and hold the right earbud for up, the left for down.

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

Gestures

Tap: play or pause, answer a call, Double-tap: next track, end or decline a call, Triple-tap: previous track, Tap then touch and hold right earbud: volume up, Tap then touch and hold left earbud: volume down, Touch and hold for 1 second: change noise cancelling mode, Say Hey headphones: voice control2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed pages 24 to 28 and 31.

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

Remappable controls

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 26: touch controls can be changed in the Bose QCE app.

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.

Voice assistant

Hey headphones voice control, Phone voice assistant2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 27 and 28: Hey headphones voice control, and Assistant followed by a request to reach the phone 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.

Sensors and health

1 of 9 differ

In-ear detection

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 30: in-ear detection with auto play or pause, auto answer and auto transparency.

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.

Sensors

Not available

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

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

3 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.

S, M, L2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed pages 11 and 17: small, medium and large eartips are included. Medium comes attached.

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.

Ear tip materials

Silicone8Reviewwhathifi.com/reviews/bose-quietcomfort-earbuds-2024Read 10 October 2026Design section: three sizes of silicone ear tips.

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.

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

Stability bands2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed pages 16 to 19: stability bands in sizes 1, 2 and 3.

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

Ear tip fit test

Not available

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.

Dust and water rating, buds

IPX42Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 13: earbuds IPX4.

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.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

Bose QCE app2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 12: Bose QCE app.

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

App platforms

Android, iOS3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Page says the app is available on Google Play and the Apple Store.

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

User firmware updates

Yes2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 45: updates start from a message in the Bose QCE app.

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

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

4 of 4 differ

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

10.89g(0.4 oz)3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bud Single 0.024 lb, converted with 453.59237 g per lb to 10.89 g. The pound figure is rounded. Entire Product System 0.152 lb matches the case plus two buds. TechRadar and What Hi-Fi list 8.5 g per bud and SoundGuys lists 6 g. The maker figure is kept.

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.

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

Width25.1Height29Depth21.1mm(1 × 1.1 × 0.8 in)4Maker product pagebose.de/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Einzelner Earbud 2.9 cm H x 2.51 cm W x 2.11 cm D. Maker-labeled axes in cm, stored in mm. The US page gives the same size in inches.

Not available

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

47.17g(1.7 oz)3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Case 0.104 lb, converted to 47.17 g. Listed apart from the single bud, so read as the empty case. SoundGuys lists 45 g.

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.

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

Width70.1Height35.1Depth48.3mm(2.8 × 1.4 × 1.9 in)4Maker product pagebose.de/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Etui 3.51 cm H x 7.01 cm W x 4.83 cm D. Maker-labeled axes.

Not available

Certifications

1 of 3 differ

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

Not available

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.

Communication certifications

Not available

Not available

FCC IDs

A943182Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 4: FCC ID A94318.

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.

Other certifications

Not available

Not available

In the box

2 of 2 differ

In the box

2 Bose QuietComfort Earbuds, Charging case, USB-C cable (USB-A to USB-C), Fit Kit (Small, Medium and Large eartips and stability bands for each earbud), Safety sheet2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Printed page 11. The maker page lists the same contents and a safety sheet.

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.

Cables included

ABose QuietComfort Earbuds (2024)

Type	Length (m)	Count
USB Type-C to USB-A cable	0.3	1

Source5Maker product pagebose.co.uk/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026In the box: USB-C cable (USB-A to USB-C, 30 cm). The US page gives 12 inches.

BSony 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

Links

Not compared

Product page

www.bose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.html3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Bose US product page for QuietComfort Earbuds.

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.

Spec sheet

Not available

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.

Manual

assets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdf2Owner's manualassets.bosecreative.com/m/52889a0b3798f19/original/891405_OG_QCEARB24-HEADPHONEIN_EN.pdfRead 10 October 2026Owner's guide 891405, English, copyright 2024. It covers Bose QuietComfort Earbuds with case model 442318.

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.

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.

Not available

Not available

Warranty

1 of 1 differ

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.

1year3Maker product pagebose.com/p/earbuds/bose-quietcomfort-headphones/QCEARB24-HEADPHONEIN.htmlRead 10 October 2026Page says Bose products come with a 1-year limited warranty from the date of purchase. US page.

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