Earbuds / Compare

Sennheiser ACCENTUM True Wireless vs Sony LinkBuds Fit

A

Product A: Sennheiser

ACCENTUM True Wireless

86 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

ASennheiser ACCENTUM True Wireless

BSony LinkBuds Fit

General

7 of 8 differ

Series

ACCENTUM5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The release places ACCENTUM True Wireless in the ACCENTUM family next to ACCENTUM Wireless and ACCENTUM Plus Wireless.

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.

ATW1, ATW1 R, ATW1 L, ATW1 C, 700262, 700263, 7002641Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: article numbers 700262 (Black), 700263 (White) and 700264 (Blue).2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Order names ATW1 Black, ATW1 White and ATW1 Blue with article numbers 700262, 700263 and 700264.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Cover: ATW1, ATW1 R, ATW1 L and ATW1 C.4Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Models ATW1, ATW1 R, ATW1 L and ATW1 C.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026US store SKUs 700262 (Black), 700263 (White) and 700264 (Blue).

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

GTIN / EAN

4260752331241, 4260752331258, 4260752331265, 810091271148, 810091271155, 8100912711622Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Technical Data table: EAN 4260752331241, 4260752331258 and 4260752331265 and UPC 810091271148, 810091271155 and 810091271162 for Black, White and Blue.

Not available

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

7 May 20245Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Maker news dated 6 May 2024 with the Wedemark dateline of 7 May 2024. The dateline date is stored.

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

Available1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store shows the product at 99.95 USD against 219.95 USD and lists Black, White and Blue.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026All three SKUs are available on 2026-10-16.

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.

$199.995Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026MSRP of 199.99 USD and 279.95 CAD. SoundGuys and T3 print 199.95 USD. The maker figure is stored.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Review lists 199.95 USD.

$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.

€199.96Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026German release of 7 May 2024: 199.90 EUR (209.90 CHF), incl. VAT.

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, DE, GB, AU5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026United States and Canada MSRP in the release.6Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026Germany.10Reviewt3.com/reviews/sennheiser-accentum-true-wireless-reviewRead 16 October 2026Now on sale for 169.99 GBP in the UK and 299 AUD in Australia.

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, Blue1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Colour selector: Black, White and Blue.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Launch colours black and white. Blue was added later and is on the maker store.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026Black, White and Blue.

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-ear1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: ear coupling ear canal, true wireless stereo earphones with four ear tip sizes.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Wearing style true wireless earphones with ear coupling in the ear canal. The silicone ear tips must seal the ear fully.

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.

Stemless3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbud diagrams show a compact body with no stalk.

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 bud3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026You can also use only the right or only the left earbud.

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

RGB lighting

Not available

Not available

Drivers and sound

8 of 17 differ

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

ASennheiser ACCENTUM True Wireless

Type	Diameter (mm)	Count per earbud
Dynamic	7	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: TrueResponse dynamic, 7 mm diameter. One driver per earbud.

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.

Dynamic1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker principle dynamic.

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.

7mm=CalculatedFrom Drivers per bud

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.

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.

Min5 HzMax21 kHz1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker frequency range 5 Hz to 21 kHz. Conditions are not stated.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker frequency range 5 Hz to 21 kHz.

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.

107dB1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 107 dB SPL (1 kHz / 1 mW). The manual prints 107 dB at 1 kHz / 0 dBFS.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker sensitivity 107 dB SPL (1 kHz / 1 mW).

Not available

Sensitivity reference

Per 1 mW1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table gives the reference as 1 mW.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Reference 1 mW.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications print the level as 107 dB at 1 kHz / 0 dBFS. The spec sheet says 1 mW, which is stored. The two references are not the same.

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the Smart Control Plus app has a Sound Personalization feature that assesses your listening preferences. The Sound Check presets come from a listening test.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sound Check in the app guides you step by step to user-defined equalizer presets.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check feature takes a listening test that determines your preferred sound.

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

Onboard EQ

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The sound effects are stored in the earbuds and stay active without the app, for example on another Bluetooth device.

Not available

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

51Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: 5-band EQ in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 20265-band equalizer and Sound Check in the Smart Control 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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Hybrid Active Noise Cancellation.

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.

Hybrid1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Active Noise Cancellation Hybrid ANC.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: Hybrid ANC technology.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Hybrid ANC with Transparency modes.

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.

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair. Shared microphones count once.

Not available

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026With adaptive noise cancellation the intensity is controlled automatically by the ambient noise. ANC modes in the app: On, Off and Anti Wind.

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Transparency Mode.

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

Adjustable transparency

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The intensity of transparency mode is set in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026In the app the user can select the amount of transparency.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A three-stage transparency mode.

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.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026ANC mode Anti Wind: light reduction to keep disturbing wind or movement noise to a minimum. It is a selectable mode.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A special anti-wind ANC mode for outdoor use.

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

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

Default sound over-emphasizes bass by a couple of dB against the SoundGuys target and under-emphasizes the mids around 500 Hz and 3 kHz by up to 5 dB. There is a boost of a couple of dB around 13 kHz. With ANC on the bass is more emphasized.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Lab measurement on SoundGuys' test rig against its headphone preference curve, default settings, firmware 5.7.6, Smart Control app 4.8.1. ANC adds bass emphasis. SoundGuys did not measure battery for this model.

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

Clear in a quiet room. The microphones struggle to attenuate simulated office, street and wind noise.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026SoundGuys microphone tests with simulated office, street and wind noise.

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.

ASennheiser ACCENTUM True Wireless

ANC	Codec	Hours (h)
No	AAC	8.5
Yes	AAC	5.5

Source9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Practical test with the AAC codec at a high playback volume: 8.5 hours with ANC off and 5.5 hours with ANC on. Tom's Guide measured about 6.5 hours ANC off and 5 hours ANC on at up to 70 percent volume with multipoint, and GSMArena and HiFi Oasis got about 5.5 hours ANC on with aptX. The reviewers use different volumes, so only this one test is stored. The review's total with the case is a calculation, so it is not stored.

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.

8.5h=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

55min9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026About 55 minutes to refuel the earbuds when empty. The case took 75 minutes by cable.

Not available

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

Not available

Not available

Microphones and calls

5 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.

41Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 2 mics per earbud, beamforming for noise reduction. Page: dual mics on each earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair.

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.

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The same two microphones per earbud serve speech and ANC, so four physical microphones in total. No feedback microphone is named.

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

DSP3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Beamforming array for the speech and ANC microphones.

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.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026During a call tap once on either earbud to mute or unmute the microphones.

Not available

SidetoneiHear your own voice in calls

Yes9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026In calls, external noise can be amplified in two intensity levels so you hear your own voice more naturally.

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

Bluetooth1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Bluetooth only. The earbuds have no wired or dongle connection.

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

Bluetooth

5.31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Bluetooth 5.3 compliant, class 1, 10 mW max.

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, AAC, aptX, LC31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: SBC, AAC, aptX, LC3.

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, AVRCP, HFP, TMAP, PBP1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: A2DP, AVRCP, HFP, TMAP, PBP.

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Bluetooth 5.3, Bluetooth LE and Auracast.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Connectivity: Bluetooth Classic and LE Audio supported.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds are certified for Bluetooth 5.3 LE Audio and Auracast broadcast audio. The codec row lists LC3.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Bluetooth LE Audio capable.

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

Auracast

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote: Auracast is available via firmware update only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Auracast broadcast audio with a function in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The earbuds are Bluetooth LE Audio and Auracast capable, with use at Auracast venues in the near future.

Not available

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Bluetooth multipoint lets you pair to multiple devices simultaneously.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.11Reviewtomsguide.com/audio/earbuds/sennheiser-accentum-true-wirelessRead 16 October 2026The review says the earbuds pair to two devices simultaneously with multipoint.

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.

23Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2. Audio plays from one device at a time.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.

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.

63Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds store the connection profiles of up to six paired Bluetooth devices.

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)

Not available

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Low Latency mode in the app reduces the delay between audio and video further. It works with all Bluetooth codecs and can shorten the range.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026The app can activate low-latency mode for games.

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.

Not available

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.

ASennheiser ACCENTUM True Wireless

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.

ASennheiser ACCENTUM True Wireless

Feature	Needs
Auracast	Firmware update. Broadcasts are chosen in the Sennheiser Smart Control app.
Eco mode	Only with sources that support aptX. The mode turns aptX off and sends SBC or AAC.
Claimed battery life	Manual test: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off. The US spec table says iPhone at a mid volume of 85 dB.

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote on Auracast and the spec table test condition.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Eco mode section and Operating time row of the specifications.

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.

55mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: left and right earbud 55 mAh.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: left and right earbud 55 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbuds 3.7 V, 55 mAh, 0.2 Wh.

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

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.

ASennheiser ACCENTUM True Wireless

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	8
ANC on	Not available	No	6
ANC off	AAC	Yes	28

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: up to 8 hours with ANC off, 6 hours with ANC on and 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB. The 28 hours match 8 hours plus 20 hours from the case, so they are stored as an ANC-off total.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery lifespan: up to 8 hours ANC off, up to 6 hours ANC on, up to 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications, Operating time: 8 hours with the earbud battery and 28 hours with the case battery. Test conditions: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off.

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.

8h=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.

6h=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.

8h=CalculatedFrom Claimed battery life

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.

28h=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.

Not available

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.

Not available

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.

A full charge of the case and the earbuds together takes about 1.5 hours. Ambient temperatures below 15 C or above 30 C and Qi wireless charging lengthen the time. Charging works between 5 C and 35 C. The case takes 5 V over USB-C. The spec sheet and manual say 500 mA at most and the US page says 1000 mA at most. A battery protection mode charges the earbuds to about 80 percent.1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging time about 1.5 hours for a full charge, with the temperature remark. Power supply 5 V, 1000 mA max, USB-C and Qi.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Power supply: 5 V, 500 mA max over USB-C. The US page prints 1000 mA max. Charging temperature 5 to 35 C.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026A full charge cycle of the case and the earbuds takes about 1.5 hours. The battery protection mode charges to about 80 percent. The case input is 5 V, 500 mA max.

Not available

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

10min1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Quick charging over USB gives up to 1 hour of playback in about 10 minutes.

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.

1h1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime. Volume and ANC state are not stated.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Up to 1 hour of playback in about 10 minutes.

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.

400mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging case 400-420 mAh. The lower figure is stored. The manual lists 1.48 to 1.56 Wh at 3.7 V.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: charging case 400-420 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case 3.7 V, 400-420 mAh, 1.48-1.56 Wh. The lower figure is stored.

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.

Not available

Not available

Case charging port

USB-C1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: USB charging via USB-C socket at 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.

Not available

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

Wireless charging

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: convenient Qi wireless or USB-C charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The case charges by USB cable or on a Qi-compatible wireless charger.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Both USB-C and Qi wireless charging are available in 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.

Qi1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Qi wireless charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Qi-compatible wireless charging station.

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.

Touch1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: touch interface.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch control surface on each earbud.

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.

Touch3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch and hold the left surface to lower the volume and the right surface to raise it.

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

Gestures

Right tap once: play or pause, answer a call, Left tap once: transparency mode on or off, Left tap twice: previous track, Right tap twice: next track, Left tap three times: ANC on or off, Right tap three times: voice assistant, Touch and hold left: volume down, Touch and hold right: volume up, Tap twice in a call: end a call or reject an incoming call, Tap once in a call: mute or unmute the microphones3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Operation chapter: tap and hold gestures for volume, transparency, ANC, voice assistant, playback and calls. Controls can be changed in the app.

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the customizable touch interface controls playback, calls and voice assistant.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026In the app you can customise control functions, select presets or switch them off. Some basic functions such as phone control cannot be changed.

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

Siri, Google Assistant3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Triple tap on the right earbud starts the voice assistant of your device, for example Siri or Google 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

2 of 9 differ

In-ear detection

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Smart Pause: music pauses when you take an earbud out and resumes when you put it back. It can be turned off in the app.

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.

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Sound Check and Sound Personalization are listening preference tests. No medical hearing test is claimed.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check listening test. It is not a medical hearing test.

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, S, M, L1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: ear tip sets XS, S, M and L.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Four silicone ear tip sizes XS, S, M and L. Size M is fitted on delivery.

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

Silicone1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026The page names ear tips. The manual says silicone.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Silicone 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.

Not available

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

Ear tip fit test

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Fit Test function in the Smart Control app.

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

IP541Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: IP54, splash resistant, earbuds only.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Weather resistance: IP54, earbuds only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbuds splash resistant to IP54. The charging case is not splash proof.

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

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Water resistance depth

Not available

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Software

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Companion app

Sennheiser Smart Control1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Sennheiser Smart Control app. The page also names a Smart Control Plus app.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sennheiser Smart Control app.

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

App platforms

Android, iOS1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Smart Control app for iOS and Android.

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

User firmware updates

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Free firmware updates through the Smart Control 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

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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.

5.5g(0.2 oz)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 5.5 g single earbud.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 5.5 g single earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbud approx. 5.5 g each.

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.

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Not available

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

41g(1.4 oz)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 41 g charging case. The 52 g total equals the case plus two earbuds, so this is the empty case.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 41 g charging case.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case approx. 41 g. Both earbuds and case approx. 52 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.

Not available

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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.

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

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FCC IDs

2A3ULATW14Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Compliance Information: FCC ID 2A3ULATW1 on the earbud models ATW1 R and ATW1 L. The charging case ATW1 C shows no FCC ID.

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

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In the box

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In the box

Earbud R (ATW1 R) and earbud L (ATW1 L), Charging case (ATW1 C) with built-in battery and wireless charging, USB cable with USB-C and USB-A connector, approx. 0.4 m, Silicone ear tips in sizes XS, S, M (fitted on delivery) and L, Quick guide, Safety guide1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box and the manual's delivery list.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Scope of delivery chapter.

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

ASennheiser ACCENTUM True Wireless

Type	Length (m)	Count
USB-C to USB-A	0.4	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: one USB-C charging cable.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026USB cable with USB-C and USB-A connector, approx. 0.4 m.

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

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Product page

us.sennheiser-hearing.com/products/accentum-true-wireless1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US maker product page.

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

Spec sheet

stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdf2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Sennheiser English spec sheet, as hosted by a distributor.

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

www.bax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdf3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Dutch manual, version 04/24 A01, hosted by a retailer. It is the maker's manual for ATW1. The English copy was not reachable on the maker's CDN.

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.

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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.

1year1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store: 1-year manufacturer warranty. The EU manual says 24 months.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026EU manual: the maker grants a 24-month warranty. The US store says 1 year and is stored.

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