Earbuds / Compare

JBL Tune Flex vs Sony LinkBuds S

A

Product A: JBL

Tune Flex

61 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

AJBL Tune Flex

BSony LinkBuds S

General

6 of 8 differ

Series

Not available

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.

JBLTFLEXBLKAM, JBLTFLEXBLUAM, JBLTFLEXWHTAM3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Amazon US lists JBLTFLEXBLKAM for the Black model. Greentoe and Creative Audio list JBLTFLEXBLUAM and JBLTFLEXWHTAM.

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

050036397001, 050036397025, 0500363970183Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026UPC 050036397001 for Black on Amazon US. Greentoe lists 050036397025 for Blue and Creative Audio 050036397018 for White.5Retailer pagegreentoe.com/product/JBL_Jbl_Tune_Flex_True_Wireless_Noise-Cancelling_Earbuds__Blue__JBLTFLEXBLUAMRead 20 October 2026Blue UPC 050036397025. Greentoe also lists earphone and case dimensions with no axis names, which are not stored.6Retailer pagecreativeaudio.net/jbltflexwhtamRead 20 October 2026White UPC 050036397018. The box list names one open eartip, 3 sizes of sealing eartips and a QSG and safety sheet.

Not available

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

Not available

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

Available3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Amazon US sells the Black model and shows 14,754 ratings. Test-Achats says the earbuds are no longer on the market in Belgium.

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

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.

JBL Tune Flex 210Maker product pagesupport.jbl.com/all-headphones/TUNE-FLEX-2.htmlRead 23 October 2026The JBL support page for the Tune Flex 2 lists the JBL Tune Flex as its predecessor product.

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.

Not available

$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.

US, GB, EU, IN2Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Sold in India from 2022-09-06. The maker's Indian launch price was Rs.6,999.3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Amazon US and the US retailers list the US models JBLTFLEX..AM.7Reviewt3.com/reviews/jbl-tune-flex-reviewRead 20 October 2026T3 reviewed it in the UK at 90 pounds on 2022-10-04 and said it was not yet in the US or Australia.9Measurementtest-achats.be/hightech/casques-audio-et-ecouteurs/comparateur/jbl-tune-flex/278/88525Read 20 October 2026Test-Achats lists the Tune Flex for Belgium at 37.99 euro and says it is no longer on the market there.

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, Blue, White3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026US listings sell Black, Blue and White. The Japanese launch also had a purple model and the Ghost Edition is a later colour finish that is not stored here.

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

Music8Reviewexpertreviews.co.uk/technology/headphones-audio/jbl-tune-flex-reviewRead 20 October 2026Review says JBL targets general-use true wireless buyers who exercise, commute and listen at home. No maker category names a sport or gaming line, so music is stored.

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

Design

1 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-ear1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026JBL calls it Sound Fit, with open ear tips or sealing ear tips. Expert Reviews says the buds are open-ear by default. In-ear is stored because ANC and the three larger tips are the sealing form. This is a dual-form earbud.8Reviewexpertreviews.co.uk/technology/headphones-audio/jbl-tune-flex-reviewRead 20 October 2026Review says the buds are open-ear by default and become sealing buds with the included eartips.

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.

Stem3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Bullet text: 12mm drivers enhanced by the stick form factor.

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 bud1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Dual Connect + Sync page shows stereo mode with both earbuds and mono mode with either the left or the right earbud.

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

11 of 17 differ

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

AJBL Tune Flex

Type	Diameter (mm)	Count per earbud
Dynamic	12	1

Source1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: 12 mm / 0.472 inch dynamic driver.

BSony LinkBuds S

Not available

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

Dynamic1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026

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.

12mm=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.

1=CalculatedFrom Drivers per bud

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.

Min20 HzMax20 kHz1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: 20 Hz - 20 kHz. Greentoe adds that this is over wireless.

Not available

Impedance

32Ω1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: 32 ohm. The same table prints sensitivity 108 dB SPL at 1 kHz with no electrical reference, so sensitivity is not stored.

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

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

Not available

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.

Not available

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

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 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.

Not available

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

6 of 11 differ

Active noise cancelling

Yes1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 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.

22Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Features list Active Noise Cancelling (2-Mic) with Smart Ambient.

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.

Not available

Not available

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

62Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Six modes of ANC tuning for open or sealed ear tips. Expert Reviews calls them six separate levels of active noise cancellation.

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

Yes1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Ambient Aware and TalkThru in the Controls diagram.

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

Adjustable transparency

Not available

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

Not available

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.

Not available

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

Expert Reviews describes an EQ tuned for fun with an emphasis on bass, warm and energetic with bass-heavy genres. T3 found the sound more precise and punchy with the sealing tips than without them.7Reviewt3.com/reviews/jbl-tune-flex-reviewRead 20 October 2026T3 says the sound is much more precise and punchy with the sealing tips than with the open tips. Qualitative.8Reviewexpertreviews.co.uk/technology/headphones-audio/jbl-tune-flex-reviewRead 20 October 2026Review says the EQ is tuned for fun with a bass emphasis. Qualitative, no measurements.

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

Expert Reviews found crisp calls in most situations with no echo, tinniness or quietness. Test-Achats rates microphone intelligibility 5 stars without ambient noise and 4 stars with ambient noise. These are qualitative ratings.8Reviewexpertreviews.co.uk/technology/headphones-audio/jbl-tune-flex-reviewRead 20 October 2026Review says voice calls were crisp in most situations with none of the echo, tinniness or quietness of rivals. Qualitative.

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.

AJBL Tune Flex

Hours (h)
5.55

Source9Measurementtest-achats.be/hightech/casques-audio-et-ecouteurs/comparateur/jbl-tune-flex/278/88525Read 20 October 2026Test-Achats lists measured battery life 333 min, stored as 5.55 h. ANC state, volume, codec and firmware are not stated on the page. It also lists 169 min after 15 minutes of charging and three recharges in the case.

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.

5.55h=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.

42Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 20264 microphones for crisp, clear calls.

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

Not available

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.

Yes1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026The Controls diagram shows a microphone and muted microphone icon on a 2-second hold, next to the call icons.

Not available

SidetoneiHear your own voice in calls

Yes3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026VoiceAware lets the user choose how much of their own voice is routed back into the earbuds.

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

10 of 18 differ

Chip

Not available

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

Bluetooth1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026

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

Bluetooth

5.21Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026

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

Not available

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 V1.3, AVRCP V1.6, HFP V1.71Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 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

Not available

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.

No9Measurementtest-achats.be/hightech/casques-audio-et-ecouteurs/comparateur/jbl-tune-flex/278/88525Read 20 October 2026Test-Achats lists Bluetooth multipoint as Non and one device connected at a time. Overdrive Compara also lists no multipoint. JBL publishes no 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.

Not available

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.

Not available

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

Not available

Not available

Fast pairing

Google Fast Pair1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Pairing page shows the Android 6.0+ prompt that ties the device to the Google Account.

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)

Not available

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

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, iOS4Retailer pagegreentoe.com/product/JBL_Jbl_Tune_Flex_True_Wireless_Noise-Cancelling_Earbuds__Black__JBLTFLEXBLKAMRead 20 October 2026Greentoe lists the JBL Headphones app for Android and iOS. The Quick Start Guide names Siri and Google Assistant.

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.

AJBL Tune Flex

Not available

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.

AJBL Tune Flex

Not available

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

11 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.

55mAh1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: earbud lithium-ion polymer 55 mAh / 3.85 V. Rated or typical is not stated. Stored per earbud.

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.

Not available

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.

AJBL Tune Flex

Mode	Includes case recharges	Hours (h)
ANC off	No	8
ANC off	Yes	32
ANC on	No	6
ANC on	Yes	24
Call	No	4.5

Source1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: music playtime with Bluetooth on and ANC off up to 8 hours, with ANC on up to 6 hours, talk time 4.5 hours. Test conditions and whether ANC is on for the talk time are not stated.2Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Up to 8H in the earbuds plus 24H in the case with ANC off, so 32 h with the case.3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Bullet text: 32 (8 plus 24) hours of battery life, or 6 hours plus 18 hours in the case with noise cancelling on. That gives 32 h and 24 h with the case.

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.

6h=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.

32h=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.

24h=CalculatedFrom Claimed battery life

20h=CalculatedFrom Claimed battery life

Talk time (claimed)

4.5h=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.

Not available

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.

The Quick Start Guide gives a charging time of under 2 hours from empty and does not say whether that is the earbuds or the case. Input is 5 V 1 A.1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: charging time under 2 hours from empty, power supply 5 V 1 A. The scope is not stated.

Not available

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

10min1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Charging diagram: 10 min = up to 2 hr of music. ANC, volume and codec are not stated.

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.

2h1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Earbud playback after 10 minutes of charging. Read from the Charging diagram.

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.

570mAh1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: charging case lithium-ion polymer 570 mAh / 3.85 V.

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-C1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 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.

Not available

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

No4Retailer pagegreentoe.com/product/JBL_Jbl_Tune_Flex_True_Wireless_Noise-Cancelling_Earbuds__Black__JBLTFLEXBLKAMRead 20 October 2026Greentoe key specs list wireless charging as None. T3 says the case does not support wireless charging.7Reviewt3.com/reviews/jbl-tune-flex-reviewRead 20 October 2026T3 says the case does not support wireless charging.

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.

Not available

Not available

Controls

4 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.

Touch1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 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.

Not available

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

Tap once on the left earbud: switch between ANC and Ambient Aware (needs the JBL Headphones app), Tap twice on the left earbud: TalkThru (needs the JBL Headphones app), Tap once on the right earbud: play or pause, Tap twice on the right earbud: next track, Tap three times on the right earbud: previous track, Tap twice on either earbud during a call: answer or end the call, Hold either earbud for 2 seconds during a call: mute or unmute the microphone, Hold either earbud for 2 seconds: voice assistant1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Read from the Controls diagram. Left earbud: tap once ANC and Ambient Aware, tap twice TalkThru. Right earbud: tap once play or pause, twice next, three times previous. Call answer and end on two taps, mute on a hold and the voice assistant on a hold. The ANC, Ambient Aware and TalkThru actions need the app.

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

Yes2Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Customisable all-access touch control through the JBL Headphones App.

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

Voice assistant

Google Assistant, Bixby, Siri1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Controls diagram names Bixby / Siri / Others and an OK Google voice assistant. The assistant is enabled in the app and assigned to either earbud.2Press releaseharman.com/india/pages/JBL-launches-JBL-Tune-Flex,-World%E2%80%99s-First-Transformable-TWS-Earbuds.aspxRead 20 October 2026Hands-free voice control with Google 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

2 of 9 differ

In-ear detection

Not available

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

Not available

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

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.

XS (open ear tip), S, M, L1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026In the Box shows XS as open ear tips and S, M and L as sealing ear tips. Amazon US lists 3 sizes of eartips, Harman India lists three sizes of sealing ear tips.

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

Not available

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.

Not available

Not available

Ear tip fit test

Not available

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

IPX43Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026IPX4 water resistance and sweat proofing.

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

2 of 6 differ

Companion app

JBL Headphones1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 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, iOS1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Google Play and App Store badges.

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

Yes4Retailer pagegreentoe.com/product/JBL_Jbl_Tune_Flex_True_Wireless_Noise-Cancelling_Earbuds__Black__JBLTFLEXBLKAMRead 20 October 2026Greentoe lists the JBL Headphones app functions: adjust settings, firmware update, remote control and setup.

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.

4.8g(0.2 oz)1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: 4.8 g per piece, 9.6 g combined.

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.

38.6g(1.4 oz)1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Tech Spec: charging case 38.6 g.

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.

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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

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Other certifications

Not available

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

Earbuds, Charging case, USB-C charging cable, Open ear tips (XS), Sealing ear tips (S, M, L), Quick start guide and safety sheet, Warranty sheet1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026In the Box diagram: earbuds, charging case, open ear tips, sealing ear tips, documents and a USB-A to USB-C cable.

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

AJBL Tune Flex

Not available

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

Not compared

Product page

Not available

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

Not available

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

www.easylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdf1Owner's manualeasylounge.com/cdn/shop/files/6932e5c53e6ebd9ef610f7116ad9c4d670b1512b_JBLTFLEXBC_01_guide_de_demarrage.pdfRead 20 October 2026Multilingual JBL Tune Flex Quick Start Guide as hosted by a retailer, because jbl.com is not read. It carries the Tech Spec table and the controls and charging diagrams.

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

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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.

1year3Retailer pageamazon.com/dp/B0C1QNRGHCRead 20 October 2026Amazon US lists a 1 year manufacturer warranty. Greentoe says limited 1-year manufacturer warranty.

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