Earbuds / Compare

Bose Ultra Open Earbuds vs Sony LinkBuds Open

A

Product A: Bose

Ultra Open Earbuds

64 of 166 known

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B

Product B: Sony

LinkBuds Open

81 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ABose Ultra Open Earbuds

BSony LinkBuds Open

General

6 of 8 differ

Series

Not available

LinkBuds1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026

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

438926, 926L, 926R, 881046-0010, 881046-0020, 881046-0030, 881046-0040, 881046-0050, 881046-0060, 881046-0070, 881046-0100, 881046-0200, 881046-0300, 881046-0400, 881046-0600, 881046-0700, 881046-0800, 881046-09002Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 4 and 6: case model 438926, left earbud 926L, right earbud 926R. The 881046 numbers are the SKUs in the product page offer data.

WF-L910, YY2964, WFL910/W3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 202624Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Maker Sony authored document heading WFL910/W LinkBuds Open Truly Wireless Earbuds White. Exact US white identifier added to align stored UPC and warranty scope. Other undocumented colour and regional SKUs omitted.

GTIN / EAN

Not available

02724292870115Retailer pagemicrocenter.com/support/687347/sony-linkbuds-open-true-wireless-bluetooth-earbuds-whiteRead 7 October 2026Product Information table explicitly UPC 027242928701 tied to US White maker part WFL910/W. Only this proved regional finish code stored. Best Buy and B&H exact same SKU corroborate. Not a UPC for every finish or region.16Retailer pagebhphotovideo.com/c/product/1857996-REG/sony_wfl910_w_linkbuds_open_truly_wireless.htmlRead 7 October 2026Exact MFR WFL910/W and UPC 027242928701 in overview. Corroborates Micro Center.

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

15 February 20241Press releasebose.com/pressroom/bose-ultra-open-earbudsRead 10 October 2026February 15, 2024 launch announcement.

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

Status

Available3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose.com US listing in stock on the access date.

Available12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Current maker Singapore exact WF-L910 store offers Black and White with Add to cart and public product availability=true. Status applies to currently sold regular models. Singapore labels Violet DISCON, which is not treated as global discontinuation of Violet or the whole model.

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.

Bose Ultra Open Earbuds (2nd Gen)8Press releasebose.com/pressroom/bose-sport-open-earbuds-and-bose-ultra-open-earbuds-2nd-genRead 10 October 2026September 17, 2026 release: the Ultra Open Earbuds (2nd Gen) build on the original cuff design.

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.

$2991Press releasebose.com/pressroom/bose-ultra-open-earbudsRead 10 October 2026Press release: available starting today for $299. US price, sales tax not included.

$199.995Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original maker launch MSRP 199.99 USD, before US local sales tax. No speaker MSRP or later street price substituted. EUR VAT scope unproved.

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

Not available

Not available

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

US, CA, GB, DE, FR4Maker product pagebose.de/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose Germany store offers the product in stock in EUR.5Maker product pagebose.co.uk/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose UK store offers the product in stock in GBP.6Maker product pagebose.fr/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose France store offers the product in stock in EUR.13Maker product pagebose.ca/en/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose Canada store offers the product in stock in CAD.

GB, US, JP, SG2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 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_OpenRead 5 October 202612Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact maker Singapore store establishes SG sale of the regular WF-L910. Existing GB/US/JP markets retained. No page-language inference.

ColoursiThe maker's own colour names

Black, White Smoke, Lunar Blue, Diamond 60th Edition, Moonstone Blue, Chilled Lilac, Sunset Iridescent, Deep Plum, Carbon Blue, Midnight Violet, Moonlight Grey, Driftwood Sand, Desert Gold3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Color names from the page offer data. Black and White Smoke are the launch colors. The others are limited editions, some out of stock.

Black, White, 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 and US-only Violet Olivia edition. Separately sold accessory-cover colours are not earbud finishes.6Maker product pagesony.jp/headphone/products/LinkBuds_OpenRead 5 October 2026Japanese current product lists base finishes. Original US maker release separately proves US Violet Olivia edition.

Segment

Not available

Music2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 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.

Open-ear2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 14: the speaker rests on the inner surface of the ear and is not inserted into the ear canal.

Open-ear2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026

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

Ear cuff2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 13: the speaker hooks in the ear and the barrel wraps behind the ear. Bose calls it cuff-shaped.

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

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

Either bud2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 50 troubleshooting: if you are wearing only one earbud, place the other in the case. Either earbud is not specified further.

Either bud3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

RGB lighting

Not available

Not available

Drivers and sound

4 of 17 differ

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

Not available

Not available

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

Not available

Dynamic17Retailer pagedell.com/en-us/shop/sony-linkbuds-earset/apd/ad433579/audioRead 7 October 2026Exact Sony LinkBuds Open White device Technical Information Features includes Dynamic Driver. Separate corroboration, not a derivation from neodymium material.18Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/sony-wfl910-linkbuds-open-true-wireless-in-ear-headphones-black.htmlRead 7 October 2026Exact WFL910B retailer Driver table explicitly Dynamic and 11 mm. Independently corroborates Dell US White WFL910/W Dynamic Driver. Unrelated mislabeled SPL frequency row and ambiguous microphone scope are excluded.

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

Not available

Not available

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

Not available

Not available

Diaphragm material

Not available

Not available

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

Not available

Not available

Impedance

Not available

Not available

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

Not available

Not available

Sensitivity reference

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Certified earbuds for a personalised experience explicitly says individual ear-shape analysis through Sound Connect. Separate 360 Spatial Sound Personalizer captures ear images for compatible BRAVIA TVs. Ear-scan spatial profile, not a hearing-threshold test.

Onboard EQ

Not available

Not available

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

32Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 19: bass, midrange and treble are adjusted in the Bose app.

59Reviewtechradar.com/audio/earbuds-airpods/sony-linkbuds-open-reviewRead 5 October 2026Explicit five-band custom EQ. App/firmware version unknown.

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

Not available

Bright, Excited, Bass Boost, Speech, Relaxed, Mellow23Reviewsmartprix.com/bytes/sony-linkbuds-open-wf-l910-very-niche-earphonesRead 7 October 2026Exact Open Sound section expressly names these six sound presets. Maker app EQ article corroborates names and explicitly lists LinkBuds Open but warns presets differ by model, so generic list not copied wholesale. No game/ANC mode represented as EQ. Software version unknown.

Volume limit

Not available

Not available

Spatial audio

1 of 2 differ

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

Bose Immersive Audio2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 21: Immersive Audio with Motion, Still and Off settings.

360 Reality Audio, Android Spatial Audio8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Compatible Android spatial services or named Sony 360 service required. No audio-specific Dolby licence invented.

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

Yes2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 21: Motion keeps the sound in front of you as you move. Still keeps virtual speakers fixed and recenters a few seconds after movement stops.

Yes8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Exact software section Android Spatial Audio head tracking on select devices, tested firmware 1.2.0. No universal Apple Dolby Atmos route.

Noise cancelling

2 of 11 differ

Active noise cancelling

No3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Technical specifications: Noise Cancelling No.

No8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Exact noise cancellation section explicitly no ANC. Open ring physical awareness does not become an electronic transparency mode.

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Transparency mode

Not available

No8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026

Adjustable transparency

Not available

Not available

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/2964/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.

Not available

Not available

Measured

4 of 23 differ

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

Measured response is far from the SoundGuys headphone preference curve. It lines up in the mid-range, has no bass response and has a sharp spike in the upper mid-range.10Measurementsoundguys.com/bose-ultra-open-earbuds-review-113271Read 10 October 2026Objective Measurements section. Firmware 1.10.4, Bose Music app 9.1.8, default settings. No numeric deviation stored.

Lab response falls below the reviewer preference curve in bass and emphasizes parts of the highs. Open fit allows substantial ambient noise.10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact lab commentary. No graph extraction, ratings or MOS converted into dB.11Measurementsoundguys.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

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

Voices are clear in ideal conditions but the microphone is rated subpar. Wind noise is not rejected in the simulated outdoor test.10Measurementsoundguys.com/bose-ultra-open-earbuds-review-113271Read 10 October 2026Microphone demos in ideal, office, street, windy and reverberant conditions. Reviewer rates the microphone subpar.

Standardized recordings show mixed call quality and pronounced wind sensitivity.10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact recorded ideal/office/street/wind/reverberant speech samples. No numerical capsule count inferred.11Measurementsoundguys.com/how-we-testRead 5 October 2026Calibrated artificial mouth with simulated noise, wind and reverberation.

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

ABose Ultra Open Earbuds

ANC	Hours (h)
No	8.88

Source10Measurementsoundguys.com/bose-ultra-open-earbuds-review-113271Read 10 October 2026SoundGuys standardized battery test: 8 hours 53 minutes. Firmware 1.10.4, app 9.1.8. Earbuds only, one charge. Codec and volume are not stated. No ANC.

BSony LinkBuds Open

ANC	Hours (h)
No	9.5

Source10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Provided Open sample, three days, firmware 1.0.4/app 1.1.0 as published, ran 9 h 30 min. Codec not stated. GSMArena 8 h 18 min has different unspecified conditions and is not combined.11Measurementsoundguys.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.

8.88h=CalculatedFrom Battery life (measured)

9.5h=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

1 of 7 differ

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Mic noise reduction

Not available

AI7Maker product pagesony.jp/headphone/products/LinkBuds_Open/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.

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

Not available

Not available

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

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

11 of 18 differ

Chip

Not available

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

Connections

Bluetooth3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Wireless Connectivity row lists Bluetooth only. The USB cable is for charging.

Bluetooth3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Bluetooth

5.31Press releasebose.com/pressroom/bose-ultra-open-earbudsRead 10 October 2026Press release: Bluetooth 5.3 compatible. SoundGuys and What Hi-Fi also list Bluetooth 5.3.

5.31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Original exact manual printed pages 145-146 explicitly publish Bluetooth 5.3, named codecs and profiles.

Bluetooth codecs

SBC, AAC, aptX Adaptive2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 39: with a Snapdragon Sound certified device the earbuds stream with aptX Adaptive. SBC and AAC come from the maker product page.

SBC, AAC, LC31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026LC3 needs compatible LE Audio Android hardware and app setup. No Auracast inferred from LC3 or Bluetooth 5.3.3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Bluetooth profiles

A2DP, HFP3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Wireless Connectivity row lists A2DP Bluetooth Audio Streaming, Bluetooth Low Energy and HFP Bluetooth.

A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

LE Audio

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Auracast

Not available

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Next-generation Bluetooth audio explicitly compatible with Auracast broadcast audio. LE Audio is described as Beta. Compatible LE Audio/Auracast source hardware/software required. No compatibility inferred solely from Bluetooth 5.3 or LC3. Original Sony US specification PDF corroborates.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Sony Electronics authored WFL910/W six-page original specification PDF. Next-generation Bluetooth audio paragraph explicitly Supports Auracast broadcast audio, LE Audio Beta. Retailer host does not turn this into a retailer-authored claim.

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

Yes2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 33: connected to up to two devices at a time. Audio plays from one device at a time.

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Two concurrent sources in Classic Audio, one playing stream. App list marks multipoint unavailable during LE Audio. No simultaneous LC3 multipoint claim.

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

22Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 33 and 36: up to two devices connected at once.

23Owner's manualhelpguide.sony.net/mdr/2964/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.

62Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 33: up to six devices in the earbud device list.

83Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Automatic switching between own devicesiThrough the maker's account

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Printed page 83 explicitly Google audio switch on compatible Android 8+ devices, using Fast Pair. Separate from Sony Auto Switch to LinkBuds Speaker.

Fast pairing

Google Fast Pair1Press releasebose.com/pressroom/bose-ultra-open-earbudsRead 10 October 2026Press release: Google Fast Pair for Android pairing.

Google Fast Pair, Microsoft Swift Pair3Owner's manualhelpguide.sony.net/mdr/2964/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

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Same paragraph explicitly shares music from one smartphone to multiple headphones via Auracast. Not multipoint or the Auto Switch speaker handoff.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Same maker paragraph expressly sharing music from one smartphone to multiple headphones.

Wireless range (claimed)

9m2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed pages 35 and 40: range of 30 ft or 9 m.

10m1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/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

None20Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 7 October 2026Complete What's in the box list on printed page 9 shows headset, USB-A to USB-C charging cable, charging case and documents. Bluetooth-only communication specification and charge-only USB route identify no proprietary 2.4 GHz audio dongle. This is a complete box and connection scope, not an inference from the 2.4 GHz radio band. Sold-separately transmitters would be Bluetooth accessories, not a proprietary receiver.

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

Not available

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Same maker paragraph expressly LE Audio Beta for ultra-low latency gaming. Exact manual Supported codecs chapter confirms LC3 low-latency transmission. Compatible source and LE Audio setup required, no separate proprietary game-toggle or numerical delay invented.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Same paragraph LE Audio Beta ultra-low latency ideal for gaming. No claimed millisecond scalar published.20Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 7 October 2026Current exact guide printed page 39 expressly connects LE Audio to less sound delay and instructs selecting LE Audio connection setting for headphones > LE Audio Priority. This is a selectable connection mode. Printed page 87 names LC3 low-latency transmission. Requires compatible Android/LE Audio source. No separate gaming toggle or numerical delay claimed.

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 of 4 differ

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

Android, iOS9Reviewsoundguys.com/bose-ultra-open-earbuds-review-113271Read 10 October 2026FAQ: the earbuds work with iPhone. Android support is shown by Google Fast Pair in the owner's guide.

Android, iOS, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

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

ABose Ultra Open Earbuds

Not available

BSony LinkBuds Open

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

Source3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Exact Android/iPhone/Windows/Mac pairing chapters and computer calls chapter. Classic phone/desktop calls need compatible HFP/HSP app settings. LE Audio availability is separately restricted.

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

ABose Ultra Open Earbuds

Feature	Needs
Google Fast Pair	Android 6.0 or higher with Bluetooth and Location enabled.
Snapdragon Sound and aptX Adaptive	A Snapdragon Sound certified device, such as a compatible Android device.
Personal Surround	A compatible Bose Smart Soundbar, currently Bose Smart Ultra Soundbar and Bose Smart Soundbar.

Source2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 38 for Fast Pair, page 39 for Snapdragon Sound, page 42 for Personal Surround.

BSony LinkBuds Open

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	Compatible source device, spatial content and application. Availability varies by platform.
Auracast audio sharing	Compatible smartphone broadcast source and LE Audio/Auracast hardware and software. Maker describes the LE Audio path as Beta.
Ear-shape sound personalization	Sony | Sound Connect ear-image analysis with supported 360 Reality Audio service. BRAVIA TV personalization separately uses Sony | 360 Spatial Sound Personalizer and compatible television.
Google Find My Device / Find Hub	Updated headset software with added network support, compatible Android device and dedicated Classic Audio connection. Finding support is unavailable through the LE Audio path.

Source3Owner's manualhelpguide.sony.net/mdr/2964/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.13Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact maker Auracast/LE Audio and certified ear-scan/BRAVIA paragraphs. Existing Classic-only multipoint restrictions retained. New requirement rows reflect source prose without adding unproved OS/firmware minima.25Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/software/00347092Read 7 October 2026Exact release notes specify new Google Find My Device only during dedicated Classic Audio connection. Firmware 1.5.1 includes that prior feature. LE Audio Fast Pair addition is a separate feature, not proof of LE Audio finding network support. Independent direct fetch blocked. Complete public indexed exact update text read, including Applicable Model WF-L910 and the previous-benefits Classic Audio-only clause. No login or access workaround.

Official licence

Not available

Not available

Battery and charging

9 of 13 differ

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

Not available

Not available

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

No2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 5: do not attempt to remove the lithium-ion battery. Contact a Bose retailer or qualified professional.

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.

ABose Ultra Open Earbuds

Mode	Spatial audio	Includes case recharges	Hours (h)
ANC off	No	No	7.5
ANC off	Yes	No	4.5
ANC off	No	Yes	27
ANC off	Yes	Yes	16.5

Source2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 29. Bose test January 2024: A2DP, IEC 60268-1 pink noise, 75 dBA, 3-band EQ at zero. Up to 7.5 h with Immersive Audio and Auto Volume off. Up to 4.5 h with either on, which is the stored spatial row. Up to 3.5 h with both on. Total with the case: 27 h, 16.5 h with either on, 12 h with both on. Codec not stated. No ANC.

BSony LinkBuds Open

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	8
ANC off	SBC	No	8
ANC off	LC3	No	8
Call	Not available	No	4.5
ANC off	Not available	Yes	22

Source4Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Exact page 27 music runtime 8 h with AAC/SBC/LC3. EQ, DSEE, Speak-to-Chat, voice wake, Service Link and Adaptive Volume Control shorten runtime. ANC-off represents ordinary music playback on a device explicitly without ANC. Call 4.5 h and standby 13 h are separate. Standby excluded.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 2026Maker explicitly 22 h including case. Footnote 12 gives 8 h earbuds + 14 h case, with Bluetooth. Codec unstated. No charging-case capacity derived.

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.

7.5h=CalculatedFrom Claimed battery life

8h=CalculatedFrom Claimed battery life

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

Not available

Not available

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

7.5h=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.

27h=CalculatedFrom Claimed battery life

22h=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

Not available

Talk time (claimed)

Not available

4.5h=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.

60min2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 29: earbuds up to 1 hour. Bose test: depleted earbuds in a fully charged case.

90min3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Approximate earbuds-only full charge in case. Case-only charging is separately published.

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

Not available

Not available

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

10min2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 29: a 10-minute charge with the case closed.

3min3Owner's manualhelpguide.sony.net/mdr/2964/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.

2h2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 29: up to 2 hours of earbud playback after 10 minutes. Immersive Audio and Auto Volume off, 75 dBA.

1h3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Maker approximately one hour of earbud music after three-minute charging. Codec/volume unspecified for this quick-charge claim. Excludes case-inclusive runtime.

Charging case

3 of 10 differ

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

Not available

300mAh18Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/sony-wfl910-linkbuds-open-true-wireless-in-ear-headphones-black.htmlRead 7 October 2026Exact WFL910B table: Charging Case Battery Capacity 300 mAh, lithium-ion cell. Typical versus rated designation unstated. Not case USB output capacity or bud capacity. Walkman exact-model technical report separately names Springpower 442129 300 mAh 3.85 V. Maker manuals/spec sheet omit capacity. Earbud 54 mAh here conflicts with other stated 56 mAh and remains absent.19Press articlethewalkmanblog.com/2024/10/09/sony-announces-new-linkbuds-line-featuring-linkbuds-open-fit-and-a-wireless-speakerRead 7 October 2026Open-specific FCC teardown discussion explicitly names case Springpower 442129 300 mAh 3.85 V. Rating designation unstated. Corroborates retailer case cell figure. Later Fit 500 mAh paragraph excluded. Bud 56 mAh is described alongside 0.216 Wh and may be arithmetic, so not stored.

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

No2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 5 gives the same instruction for the product. Bose sells the charging case as a replacement part.

Not available

Case charging port

USB-C2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 27: USB-C port on the bottom of the charging case.

USB-C3Owner's manualhelpguide.sony.net/mdr/2964/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.

180min2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 29: charging case up to 3 hours. The connection is the USB cable.

150min3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Wireless charging

No7Maker product pagebose.com/p/accessories/bose-ultra-open-earbuds-wireless-charging-case-cover/CMWB-FULT_WLSCH-COVERCASE.htmlRead 10 October 2026Bose sells a Wireless Charging Case Cover as an upgrade to wireless charging. The earbuds and case as sold have no wireless charging. The 2nd gen press release also says its case is the one that now supports wireless charging.

No10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact Open review charging paragraph explicitly says the USB-C case does not support wireless charging. This is corroborated by exact maker table/manual wired charging method.

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.

Button2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 17: one button on each earbud barrel.

Touch, Head gestures, Voice commands3Owner's manualhelpguide.sony.net/mdr/2964/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.

Buttons2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 18: double-press and hold the right button for up, the left button for down.

Touch3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Gestures

Press: play or pause, answer a call, Double-press: next track, end or decline a call, Triple-press: previous track, Press and hold: shortcut, by default cycle through modes, Double-press and hold right earbud: volume up, Double-press and hold left earbud: volume down2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed pages 17 to 20.

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/2964/v1/en/print.pdfRead 5 October 2026

Remappable controls

Yes2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 20: the shortcut on each earbud can be changed in the Bose app.

Yes3Owner's manualhelpguide.sony.net/mdr/2964/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

Device voice control2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 25: a shortcut opens the voice control of the connected device. The earbud microphones act as an extension of the device microphone.

Amazon Alexa, Google app, Siri3Owner's manualhelpguide.sony.net/mdr/2964/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

3 of 9 differ

In-ear detection

No11Reviewwhathifi.com/reviews/bose-ultra-open-earbudsRead 10 October 2026Reviewer states there is no auto-pause when you take an earbud out.12Reviewstuff.tv/review/bose-ultra-open-earbuds-reviewRead 10 October 2026Reviewer states there is no wear detection. Music only stops when the buds go back in the charging case.

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Parts diagrams name built-in IR sensors. App enables automatic pause/resume and power-off when removed.

Sensors

IMU (Inertial Measurement Unit)1Press releasebose.com/pressroom/bose-ultra-open-earbudsRead 10 October 2026Press release: onboard IMU (Inertial Measurement Unit) drives Bose Immersive Audio.

Infrared wear sensors3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Safe Listening12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Total convenience, total customisation explicitly Safe Listening checks WHO healthy listening habits. Exposure-awareness function, not medical hearing aid, hearing test, skin sensor or automatic sudden-sound suppression.

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.

Not available

Not available

Ear tip materials

Not available

Not available

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

Not available

Fins3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Ear tip fit test

Not available

Not available

Dust and water rating, buds

IPX42Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 43: earbuds IPX4.

IPX4 equivalent4Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Earbuds only. Exact Open claim is IPX4 equivalent, without inferring independent certification. Charging case explicitly not water resistant.

Dust and water rating, case

IPX12Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 43: charging case IPX1.

Not available

Water resistance depth

Not available

Not available

Software

2 of 6 differ

Companion app

Bose app2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 12.

Sony | Sound Connect3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

App platforms

Android, iOS2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 6 trademark notice names the Apple App Store and Google Play. The maker product page says the app is on Google Play and the Apple Store.

Android, iOS3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

User firmware updates

Yes2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 45: earbuds update automatically through the Bose app when an update is available.

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Finding network

Not available

Google Find Hub25Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/software/00347092Read 7 October 2026Exact WF-L910 firmware 1.5.1 published 22 April 2026 lists prior included addition of the new Google Find My Device under dedicated Classic Audio only. Schema current Google Find Hub enum identifies this renamed Google finding network. No inference from Fast Pair alone. Independent direct fetch blocked. Complete public indexed exact update text read, including Applicable Model WF-L910 and the previous-benefits Classic Audio-only clause. No login or access workaround.

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

4 of 4 differ

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

6.35g(0.2 oz)3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bud Single 0.014 lb. Converted with 453.59237 g per lb to 6.35 g. The pound figure is rounded, so the true mass may differ a little. SoundGuys lists 6 g.

5.1g(0.2 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Approximate one-earbud mass including attached fitting supporter. Pair mass is not stored.3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate one-earbud weight including fitting supporter.

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

Width17Height18.5Depth27.2mm(0.7 × 0.7 × 1.1 in)4Maker product pagebose.de/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Einzelner Earbud 1.85 cm H x 1.7 cm W x 2.72 cm D. Maker-labeled axes in cm, stored in mm. The US page gives the same size in inches.

Not available

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

44g(1.6 oz)3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Case 0.097 lb, converted to 44.0 g. Listed apart from the single bud, so read as the empty case. SoundGuys lists 57 g, which is about the case plus two earbuds.

30.6g(1.1 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Exact charging-case mass, separate from earbuds.3Owner's manualhelpguide.sony.net/mdr/2964/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.

Width65Height41.9Depth26.4mm(2.6 × 1.6 × 1 in)4Maker product pagebose.de/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Etui 4.19 cm H x 6.5 cm W x 2.64 cm D. Maker-labeled axes. SoundGuys lists 65 x 27 x 49 mm, which differs on the height axis.

Not available

Certifications

1 of 3 differ

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

Not available

Not available

Communication certifications

Not available

Not available

FCC IDs

A94926L, A94926R2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 4: FCC ID A94926L / A94926R.

AK8YY296421Owner's manualmanuals.plus/m/3e695feadcd6e23333de6773d2a93fffd2caa8dace4aaf25fe4135cf858ad63b_optim.pdfRead 7 October 2026Sony-authored Reference Guide 5-056-449-12(1), original reference page 1, compilation PDF page 1. Exact LinkBuds Open YY2964 label explicitly FCC ID AK8YY2964 and IC 409B-YY2964. The previous mirror returned a challenge page. This ordinary public PDF compilation begins with the same manufacturer guide. No separate case FCC ID inferred.

Other certifications

Snapdragon Sound2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 39: Snapdragon Sound technology.

360 Reality Audio certified, ISED IC: 409B-YY2964, FCC Part 15 Class B, ISED RSS-10212Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact model paragraph expressly 360 Reality Audio certified earbuds. Separate from Hi-Res Audio certification, licensing for game consoles or Dolby branding.22Owner's manualmanuals.plus/m/3e695feadcd6e23333de6773d2a93fffd2caa8dace4aaf25fe4135cf858ad63b_optim.pdfRead 7 October 2026Original Sony reference guide page 1 identifies IC 409B-YY2964. Reference page 2 explicitly states FCC Part 15 Class B compliance and ISED RSS-102 RF exposure compliance. Same opening pages in this public compilation. Standards/identifier are stated compliance evidence, not medical clearance.

In the box

2 of 2 differ

In the box

2 Bose Ultra Open Earbuds, Charging case, USB-C (A to C) cable, Safety sheet2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Printed page 11: earbuds, charging case, USB Type-C to USB-A cable. The maker page also lists a safety sheet.

Sony LinkBuds Open earbuds with Air Fitting Supporters, Charging case, USB-A to USB-C cable, Documents3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Complete standard box list. Factory Air Fitting Supporters are attached. Separately sold covers/supporter colours and Olivia edition promotions excluded.

Cables included

ABose Ultra Open Earbuds

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

Source5Maker product pagebose.co.uk/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026In the box: USB-C (A to C) cable (30 cm). The US page gives 12 inches.

BSony LinkBuds Open

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

Source3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Links

Not compared

Product page

www.bose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.html3Maker product pagebose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.htmlRead 10 October 2026Bose US product page.

www.sony.co.uk/headphones/products/linkbuds-open2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026Exact model maker product page. Open ring admits sound physically, without electronic transparency mode.

Spec sheet

Not available

www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specifications1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Full exact maker support technical table. Bluetooth communication range is not acoustic frequency response. Unlabelled case dimensions are not assigned to width/height/depth. Exact published 11 mm ring driver diameter describes its outer ring, not a solid 11 mm diaphragm. Physical driver count per earbud was not explicitly found. The optional driver table is omitted because an uncounted row would derive a count of one. Diameter remains documented here rather than creating an unsupported derived count.

Manual

assets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdf2Owner's manualassets.bosecreative.com/m/65e13aaa016a23ac/original/889371_OG_ULT-HEADPHONEOPN_en.pdfRead 10 October 2026Owner's guide 889371, English, copyright 2026. It covers Bose Ultra Open Earbuds with case model 438926.

helpguide.sony.net/mdr/2964/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Original exact English guide 148 pages. Box page 9, runtime page 27, specifications pages 145-146, app pages 115-116 inspected.

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

Not available

Not available

Warranty

0 of 1 differ

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

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

1year15Retailer pagemicrocenter.com/support/687347/sony-linkbuds-open-true-wireless-bluetooth-earbuds-whiteRead 7 October 2026US exact White WFL910/W Vendor Warranty table parts 1 Year Limited and labor 1 Year Limited. B&H explicitly Limited 1-Year Manufacturer Warranty corroborates. Maker exact US support links a warranty PDF but fetch did not resolve that file. Retailer source explicitly vendor warranty, excludes retail return policy, statutory rights, UK registration promotion and JP Sony-store 3 year promotion.16Retailer pagebhphotovideo.com/c/product/1857996-REG/sony_wfl910_w_linkbuds_open_truly_wireless.htmlRead 7 October 2026Items Included explicitly Limited 1-Year Manufacturer Warranty for US WFL910/W. No other regional warranty generalized.

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