Earbuds / Compare

Google Pixel Buds A-Series vs Sony WF-1000XM4

A

Product A: Google

Pixel Buds A-Series

65 of 166 known

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B

Product B: Sony

WF-1000XM4

85 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

AGoogle Pixel Buds A-Series

BSony WF-1000XM4

General

7 of 8 differ

Series

Pixel Buds10Press releaseblog.google/products-and-platforms/products/pixel-buds/introducing-a-seriesRead 11 October 2026Google launch post for the Pixel Buds A-Series, the affordable model of the Pixel Buds line.

1000X1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026

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

GA02213-US6Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Review spec table lists model number GA02213-US, a US model. Product release date June 17, 2021 and original price $99 USD agree with the Verge launch report.

WF-1000XM4, YY29481Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 20263Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

GTIN / EAN

Not available

Not available

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

3 June 20212Press articletheverge.com/2021/6/3/22466088/google-pixel-buds-a-series-specs-priceRead 10 October 2026The Verge, June 3, 2021: officially announced today.

8 June 20215Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

Status

Not available

Discontinued1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026Current exact Japanese maker page explicitly marks production discontinued. Regional retail stock may remain.

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 WF-1000XM313Reviewtechradar.com/news/sony-wf-1000xm4-take-the-crown-as-the-best-true-wireless-earbuds-of-2021Read 23 October 2026TechRadar's launch report calls the WF-1000XM4 the successor to the WF-1000XM3.14Reviewnotebookcheck.net/The-Sony-WF-1000XM4-launches-with-some-exciting-features-and-an-inflated-price-tag.544040.0.htmlRead 23 October 2026Notebookcheck calls the WF-1000XM4 the follow-up to the WF-1000XM3.

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.

Google Pixel Buds 2a15Reviewnotebookcheck.net/Pixel-Buds-2a-arrive-with-Pixel-Buds-Pro-2-features-at-a-lower-price.1092514.0.htmlRead 23 October 2026Notebookcheck says Google announced the Pixel Buds 2a as the successors to the Pixel Buds A-series released in 2021.

Sony WF-1000XM515Maker product pagesony.jp/headphone/products/WF-1000XM5/feature_2.htmlRead 23 October 2026Sony Japan's product page calls the WF-1000XM4 the previous model of the WF-1000XM5.

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

$992Press articletheverge.com/2021/6/3/22466088/google-pixel-buds-a-series-specs-priceRead 10 October 2026Priced at $99 in the US.

$279.995Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Original US launch MSRP, before local sales tax. Current prices and SoundGuys rounded 278 USD are not substituted. Ordering opened June 8. Actual retail date is separately corroborated by retrospective TechRadar release/availability text.

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.

€993Press article9to5google.com/2021/08/18/pixel-buds-a-series-internationalRead 10 October 20269to5Google: 99 EUR in France, Germany, Ireland, Italy and Spain from August 25, 2021. Price as published for retail, tax treatment not stated.

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, DE2Press articletheverge.com/2021/6/3/22466088/google-pixel-buds-a-series-specs-priceRead 10 October 2026US and Canada at launch. Germany from the August 2021 rollout. Documented subset.

US, JP1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026Japanese exact product/store history and original US launch release separately establish JP and US. A translated support page alone does not establish another sales market.5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

ColoursiThe maker's own colour names

Clearly White, Dark Olive, Charcoal, Sea1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Google Pixel Buds A-Series Specifications: Clearly White, Dark Olive, Charcoal, Sea.

Black, Platinum Silver1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026Exact maker Black and Platinum Silver. US launch calls the second colour silver. No newer XM5/XM6 finish borrowed.

Segment

Music10Press releaseblog.google/products-and-platforms/products/pixel-buds/introducing-a-seriesRead 11 October 2026Launch post positions the model for rich sound with hands-free help from Google Assistant, an everyday listening product.

Music5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 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-ear5Reviewandroidcentral.com/google-pixel-buds-series-reviewRead 10 October 2026Review: sticking them in your ear canal produces a seal, with a vent on the underside that releases pressure. Stored as in-ear.

In-ear5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Sealing foam tips and ergonomic ear-cavity design. No stem on exact maker photo and manual drawings.

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

Stemless9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Style text: round, minimalist look.

Stemless5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

Either bud4Reviewtheverge.com/22465651/google-pixel-buds-a-series-earbuds-review-features-priceRead 11 October 2026Review quoting Google: each earbud connects individually to the source device.13Maker product pagesupport.google.com/googlepixelbuds/answer/7560934Read 11 October 2026Controls page: on the Pixel Buds A-Series all gestures can be performed with either earbud. The Verge adds that each earbud connects individually to the source device.

Either bud3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 19-20 either unit works alone with mobile-device assistant or no assistant. Google Assistant/Alexa assignments can restrict single-bud use to the playback-control earbud, initially the right unit. No independent simultaneous source playback inferred.

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.

AGoogle Pixel Buds A-Series

Type	Diameter (mm)	Count per earbud
Dynamic	12	1

Source1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Audio: custom-designed 12 mm dynamic speaker driver. The page lists one driver for the earbud.

BSony WF-1000XM4

Type	Diameter (mm)	Count per earbud
Dynamic	6	1

Source2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026Exact maker table says closed dynamic and 6 mm. The separately opened original Crutchfield review explicitly states a single 6 mm dynamic driver in each earbud. Acoustic role is not explicitly published and remains omitted.12Reviewcrutchfield.com/S-L8b4RWU6LPi/learn/sony-wf-1000xm4-review.htmlRead 5 October 2026Original first-hand review by Jeff Miller, who auditioned this exact model for a week. Cleaner, more spacious sound paragraph and exploded-component caption explicitly say each earbud includes a single 6 mm dynamic driver. This is the physical per-earbud count. Its erroneous 13 h ANC-off battery claim is not used over exact Sony manual and launch data.

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

Dynamic1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

Dynamic2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026

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

12mm=CalculatedFrom Drivers per bud

6mm=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

1=CalculatedFrom Drivers per bud

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

Max40kHz8Maker spec sheet (PDF)sony.com.my/microsite/MDR/SONY_WF1000XM4.pdfRead 5 October 2026Original maker 16-page model brochure, page 6 explicitly says drivers reproduce a full range of frequencies up to 40 kHz. This is an acoustic driver claim, separate from the Bluetooth transmission table. No acoustic lower cutoff, tolerance or test setup is supplied. Only the proved upper limit is stored. Full original PDF text read through web extraction. Direct file download returned 403.

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

Yes6Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_1.htmlRead 5 October 2026Exact maker personal optimization explicitly uses individual ear shape and headphone characteristics. Fit test is separate acoustic-seal assessment.

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.

Not available

Not available

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

1 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 Audio6Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_1.htmlRead 5 October 2026Exact maker 360 Reality Audio certified model. Ear-shape optimization through companion app and supported service/content required. No head tracking inferred.

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

Not available

Noise cancelling

7 of 11 differ

Active noise cancelling

No1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Audio lists passive noise reduction and a spatial vent. No active noise cancelling is listed.

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

Not available

Hybrid5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

45Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Original release explicitly two noise-sensing microphones per earbud, one feedforward and one feedback, hence four across pair.

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

No7Reviewifixit.com/Device/Google_Pixel_Buds_A-SeriesRead 11 October 2026iFixit background: the A-Series removes wireless charging, transparency mode and ANC with Silent Seal compared with the Pixel Buds Pro.

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

Adjustable transparency

Not available

Yes7Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_5.htmlRead 5 October 2026Exact maker ambient volume slider and Voice Focus. Japanese page calls 21 steps, while original Malaysian sheet says 20 slider levels. No strength-level count stored. Activity-based profile switching does not prove ANC continuously adapting or blending ANC/transparency.

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

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Automatic Wind Noise Reduction is selectable processing that detects wind and compensates. Not a physical mesh claim.

Measured

4 of 23 differ

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

RTINGS describes a somewhat neutral sound profile with underemphasised bass across the whole range. The Bass Boost EQ adds punch. The mid-treble is slightly underemphasised.9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Sound Profile text for the A-Series. Numeric bass and treble amounts are locked, so none are stored.

The measured default response emphasizes bass and lower midrange. Output above about 2 kHz is reduced relative to the review target.10Reviewsoundguys.com/sony-wf-1000xm4-review-53454Read 5 October 2026Exact lab curve discussion, not plotted coordinate estimates. Fixture/target revision, firmware and codec unstated.

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

RTINGS: recording quality is satisfactory, voice sounds somewhat natural but thin. Noise handling is mediocre on a busy street.9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Recording Quality and Noise Handling text.

Published quiet, office and wind recordings show usable call pickup in quiet. Background office noise and wind reduce voice clarity.10Reviewsoundguys.com/sony-wf-1000xm4-review-53454Read 5 October 2026Exact ideal/office/wind demos. Review comments on AAC quality but does not explicitly label every sample codec. No sample codec or quantitative noise-handling score inferred.

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

AGoogle Pixel Buds A-Series

Hours (h)
4.73

Source6Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 20264 hours 44 minutes of constant music playback peaking at 75 dB(SPL) in the SoundGuys standardized test. The review tested firmware 233 or later for its sound section. ANC does not exist on this product.

BSony WF-1000XM4

Hours (h)
7.72

Source10Reviewsoundguys.com/sony-wf-1000xm4-review-53454Read 5 October 2026Exact review reports 7 h 43 min per earbud charge. ANC state, codec, original test firmware and playback level are not explicit in that paragraph and remain omitted. No claimed case total or later battery-aging reports converted into lab data.

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

4.73h=CalculatedFrom Battery life (measured)

7.72h=CalculatedFrom Battery life (measured)

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Microphones and calls

3 of 7 differ

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

46Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Review: each earbud has two mics, four across the pair. Google lists dual beamforming microphones without a per-earbud count.

45Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Speak-to-Chat paragraph explicitly combines four microphones for Precise Voice Pickup. Bone-conduction sensors are excluded from physical microphone counts. Total physical microphone count is not inferred from overlap between call and ANC roles.

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.

46Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Two microphones per earbud from the review.

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

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

Mic noise reduction

DSP14Reviewm.gsmarena.com/google_pixel_buds_aseries_review-news-49871.phpRead 11 October 2026GSMArena lists in-call noise reduction. Google lists dual beamforming microphones and no AI claim, so DSP is stored.

DSP5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Precise Voice Pickup uses beamforming and advanced audio signal processing. DSEE AI is music upscaling, not proof of AI voice noise reduction.

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

Not available

Not available

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

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 86-92 call chapters explicitly hear own voice through microphones. No adjustable sidetone level claimed.

Connectivity

8 of 18 differ

Chip

Not available

Sony Integrated Processor V15Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

Connections

Bluetooth1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

Bluetooth3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

Bluetooth

5.01Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

5.22Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026

Bluetooth codecs

SBC, AAC6Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Review: Bluetooth codec options are AAC and SBC.

SBC, AAC, LDAC2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026Published music codecs only. The SoundGuys review incorrectly infers LE Audio from Bluetooth 5.2, which is not used. A2DP transmission bandwidth does not establish acoustic response or maximum accepted input bit depth.

Bluetooth profiles

Not available

A2DP, AVRCP, HFP, HSP2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026

LE Audio

Not available

Not available

Auracast

Not available

Not available

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

No9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Bluetooth text: no NFC or multi-device pairing.

Yes3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 69-70 current manual explicitly simultaneous two-device connections with app toggle. It is a later software feature, not a launch claim. One audio stream at a time. LDAC availability during multipoint remains unproved.

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

Not available

23Owner's manualhelpguide.sony.net/mdr/wf1000xm4/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.

Not available

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Google Fast Pair4Reviewtheverge.com/22465651/google-pixel-buds-a-series-earbuds-review-features-priceRead 11 October 2026Review: the Pixel Buds A-Series still support Android's Fast Pair feature for quick setup.

Google Fast Pair, Microsoft Swift Pair5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Original release explicitly Google Fast Pair Android and Microsoft Swift Pair Windows 10. Manual requires Windows 10 version 1803 or later for Swift Pair.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

10m2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026Manual page 143 specifies approximate 10 m line of sight, with surroundings affecting range. No measured range implied.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

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

Not available

Not available

Latency

None of 3 known

Low latency mode

Not available

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 of 4 differ

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

Android, iOS1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Requirements: any Bluetooth 4.0 or newer device including Android or iOS mobile devices, tablets and laptops.

Android, iOS, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/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.

AGoogle Pixel Buds A-Series

Not available

BSony WF-1000XM4

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

Source3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Exact Android, iPhone, Windows 10/8.1 and Mac setup chapters. Page 93 video-call instructions explicitly select HFP/HSP calling connections for speakers and microphone. No gaming-console support inferred.

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

AGoogle Pixel Buds A-Series

Feature	Needs
Full access to features	Google Account, a companion phone running Android 6.0 or newer with Google Assistant, the Pixel Buds app and an internet connection. Pairs as a plain Bluetooth device with any Bluetooth 4.0 or newer device, including iOS.
Live translation	Google Assistant on a compatible Android phone, with an internet connection.

Source1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

BSony WF-1000XM4

Feature	Needs
360 Reality Audio personalization	Compatible Android/iPhone, companion app ear-shape analysis, supported content and a compatible streaming service. Subscription and regional availability may apply.
LDAC	Compatible LDAC source and Priority on sound quality in companion app. iPhone Bluetooth music uses AAC instead.
Two-device multipoint	Updated firmware and companion app Connect to 2 devices simultaneously enabled. It routes one audio stream at a time.

Source9Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026Original launch footnotes 2, 4 and 5 and current exact manual pages 69-70/84/106 independently establish each requirement. Later app name changes do not imply a later hardware model.

Official licence

Not available

Not available

Battery and charging

10 of 13 differ

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

Not available

Not available

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

Not available

Not available

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

AGoogle Pixel Buds A-Series

Mode	Includes case recharges	Hours (h)
ANC off	No	5
ANC off	Yes	24
Call	No	2.5
Call	Yes	12

Source1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Earbuds up to 5 hours of listening or 2.5 hours of talk. With the charging case up to 24 hours of listening or 12 hours of talk. Footnote 6.2: music playback with pre-production hardware and software, fully charged buds and case, other features disabled. The volume is not stated.

BSony WF-1000XM4

Mode	Codec	Includes case recharges	Hours (h)
ANC on	LDAC	No	5
ANC off	LDAC	No	6
Transparency	LDAC	No	4.5
ANC on	AAC	No	8
ANC off	AAC	No	12
Transparency	AAC	No	8
ANC on	SBC	No	7.5
ANC off	SBC	No	11
Transparency	SBC	No	7
ANC on	AAC	Yes	24
ANC off	AAC	Yes	36
Call	Not available	No	6

Source1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 20263Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 20264Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 27-28 music rows with DSEE Extreme OFF. ANC off also means Ambient Sound off. DSEE AUTO shortens LDAC ANC/on,off,ambient to 3.5/4/3.5 h, AAC to 6/8/6 h and SBC to 5.5/7/5.5 h. AUTO alternatives are noted rather than merged into indistinguishable rows. Volume and firmware unstated. Japanese maker footnote explicitly supplies AAC and DSEE/EQ off for case-inclusive 24 h ANC on and 36 h off. Case totals include earbuds. Call maximum 6 h with ANC/Ambient off and codec unstated. Other call modes: 5.5 h ANC on, 5 h Ambient on. No unsupported call ANC column added.

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.

5h=CalculatedFrom Claimed battery life

12h=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

8h=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.

5h=CalculatedFrom Claimed battery life

12h=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.

24h=CalculatedFrom Claimed battery life

36h=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

24h=CalculatedFrom Claimed battery life

Talk time (claimed)

2.5h=CalculatedFrom Claimed battery life

6h=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

90min3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Manual page 24 defines empty-to-full charging. Earbuds fully charge in approximately 1.5 h from a previously charged case. Approximately 3 h refers to charging both headset and case together over USB. Page 25 recommends ambient 15 to 35 C. Page 143 corroborates the technical durations. These are claims, not measured values.

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.

15min1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 202615-minute charge of the earbuds in the charging case.

5min3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/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.

3h1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Up to 3 hours of listening, earbuds only.

1h1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 20263Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Page 27 about 1 h playback after 5 min charging. Exact maker Japanese page footnote qualifies AAC, ANC on, DSEE/EQ off and other features at default.

Charging case

4 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.

500mAh8Reviewifixit.com/Guide/Google+Pixel+Buds+A-Series+Battery+Replacement/153791Read 10 October 2026Teardown of the charging case: the battery is marked Model GYJS0, Rated Capacity 500 mAh 1.85 Wh, Rated Voltage 3.7 VDC. 500 mAh at 3.7 V equals 1.85 Wh. This is the case cell, rated capacity.

Not available

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

Not available

Not available

Case charging port

USB-C1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

USB-C3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/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/wf1000xm4/v1/en/print.pdfRead 5 October 2026Manual page 24 approximately 3 h empty-to-full USB charging with earbuds installed and charging simultaneously. Page 143 separately labels charging case approximately 3 h. No faster empty-case-only or Qi duration inferred. Recommended ambient 15 to 35 C on page 25.

Wireless charging

No9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Case text: the case does not support wireless charging. The Google page lists only a USB-C charging port.

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

Not available

Qi5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026

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

5 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 pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Capacitive touch sensors for music, calls and Google Assistant controls.

Touch, Voice commands3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/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.

None9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Controls text: unlike the Pixel Buds (2020), no volume controls.

Touch3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 21-22 permit assigning playback volume adjustment to touch sensors. Factory touch functions and assistant assignment affect availability.

Gestures

Tap once: play or pause, Tap twice: next track, Tap three times: previous track, Touch and hold: Google Assistant9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS Controls text: tap once, twice, three times and touch and hold.

Single tap, Double tap, Triple tap, Touch and hold3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

Remappable controls

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

Voice assistant

Google Assistant, Gemini9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Touch and hold activates the voice assistant. Google Assistant comes from the Google article and the Verge review.13Maker product pagesupport.google.com/googlepixelbuds/answer/7560934Read 11 October 2026Controls page lists Gemini activation by touch and hold or hotword for Pixel Buds A-Series, next to Hey Google. Gemini needs the latest app and an Android 10 or later phone.

Google Assistant, Amazon Alexa, Siri3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 20265Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Google Assistant/Alexa explicitly original launch, with supported language/region and app setup requirements. Siri activation is touch-controlled in manual pages 104-105, not hands-free Hey Siri.

Sensors and health

1 of 9 differ

In-ear detection

Yes1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Single IR proximity sensor for in-ear detection to play and pause automatically.

Yes3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Pages 17-18 explicitly IR sensing and pause/resume on removing/replacing either earbud.

Sensors

Capacitive touch sensors, Single IR proximity sensor, Motion-detecting accelerometer, Hall Effect sensor in the case1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Voice: dual beamforming microphones. Sensors: capacitive touch, single IR proximity sensor for in-ear detection, Hall effect sensor in the case. The page does not say if the IR sensor count is per earbud.7Reviewifixit.com/Device/Google_Pixel_Buds_A-SeriesRead 11 October 2026iFixit device page lists a motion-detecting accelerometer in the earbuds along with the touch sensors, the single IR proximity sensor and the case Hall effect sensor. Google's support article does not list the accelerometer for the A-Series.

Infrared wearing sensor, Bone conduction voice sensor3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026IR wearing sensor explicit in manual. Dedicated bone-conduction speech pickup sensor separately explicit in original maker release, not a speech-detecting accelerometer.

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

3 of 7 differ

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

S, M, L1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Eartips in small, medium (attached) and large.

S, M, L3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

Ear tip materials

Silicone6Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Review: ships with small, medium and large silicone ear tips.

Foam3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Page 9 and maintenance chapters explicitly polyurethane foam. No silicone tip material inferred from siblings.

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

Wing tips6Measurementsoundguys.com/google-pixel-buds-a-series-review-54174Read 10 October 2026Review text names the comfortable wings of the earbuds. RTINGS also says the ear wings are small. The Verge calls them ear hooks or stabilizer arcs. Stored as wing tips from SoundGuys and RTINGS wording.

Not available

Ear tip fit test

Not available

Yes5Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Original app measures acoustic seal with supplied Noise Isolation tips. This is not a hearing assessment.

Dust and water rating, buds

IPX41Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026IPX4 water protection rating, earbuds only, under IEC 60529.

IPX43Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 20265Press releasesony.mediaroom.com/2021-06-08-Sony-Electronics-Unveils-the-WF-1000XM4-Truly-Wireless-Headphones,-Setting-a-New-Standard-for-Noise-CancellationRead 5 October 2026Earbuds only. Launch footnote 12 excludes sound conduit, vents and two microphone holes per unit from protection scope and states case is not water resistant.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

3 of 6 differ

Companion app

Pixel Buds app9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS App Support text: the Google Pixel Buds app.

Sony | Sound Connect1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026Current maker feature 5 names Sony Sound Connect. Original manual and launch use its former name Sony | Headphones Connect.7Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_5.htmlRead 5 October 2026Exact current maker feature page names Sony Sound Connect. This replaces the former Sony | Headphones Connect name used in the original manual.

App platforms

Android9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS App Support text: the app is only available on Android devices.

Android, iOS3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Page 108 explicitly Google Play and Apple App Store. No desktop companion app inferred.

User firmware updates

Yes14Reviewm.gsmarena.com/google_pixel_buds_aseries_review-news-49871.phpRead 11 October 2026GSMArena: firmware updates for the buds are downloaded from the Pixel Buds app on Android.

Yes3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026

Finding network

Last location in the app9Measurementrtings.com/headphones/tools/compare/google-pixel-buds-a-series-truly-wireless-vs-sony-wf-c500-truly-wireless/25832/28723Read 10 October 2026Public RTINGS App Support text: the app can find lost buds. The finding method is not stated, stored as app-based.

Last location in the app8Maker spec sheet (PDF)sony.com.my/microsite/MDR/SONY_WF1000XM4.pdfRead 5 October 2026Page 10 explicitly Google Find My Device last known smartphone location and nearby tone. No crowd-based offline Find Hub network or UWB precision-finding claim.

Precision findingiUWB in the case

Not available

Not available

Live translation

Yes4Reviewtheverge.com/22465651/google-pixel-buds-a-series-earbuds-review-features-priceRead 11 October 2026Review lists real-time language translation as a retained feature. Google Assistant and a compatible phone are required.

Not available

Dimensions and weight

2 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.

5.06g(0.2 oz)1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Earbuds 5.06 g.

7.3g(0.3 oz)2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026Approximate mass of one earbud, corroborated by manual page 143 as 7.3 g x2 with M tips attached.

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

Not available

Not available

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

42.8g(1.5 oz)1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026Case 42.8 g without earbuds (52.9 g with earbuds).

41g(1.4 oz)2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026Approximate empty charging-case mass, separately listed on manual page 143.

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

Not available

Certifications

2 of 3 differ

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

Not available

Hi-Res Audio Wireless6Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_1.htmlRead 5 October 2026Hi-Res Audio Wireless logo on exact maker page and LDAC conditions. DSEE upscaling to 96 kHz/24 bit and V1 24-bit internal processing do not establish maximum accepted digital input resolution.

Communication certifications

Not available

Not available

FCC IDs

SZGG7YPJ, SZGGPQY212Owner's manualsupport.google.com/googlepixelbuds/answer/10500249Read 11 October 2026Safety, Warranty & Regulatory Guide for Pixel Buds A-Series, US section: models G7YPJ, GPQY2 and G7T9J, FCC ID SZGG7YPJ and FCC ID SZGGPQY2. The guide does not say which ID belongs to which earbud. G7T9J has no FCC ID of its own.

Not available

Other certifications

Not available

360 Reality Audio certified6Maker product pagesony.jp/headphone/products/WF-1000XM4/feature_1.htmlRead 5 October 2026

In the box

2 of 2 differ

In the box

Earbuds, Charging case, Eartips with 3 size options: small, medium (attached to earbuds), large, USB-C to USB-A charging cable, Quick Start Guide1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

WF-1000XM4 earbuds, Charging case, Noise isolation ear tips (S, M, L pairs), USB-A to USB-C cable, Documentation1Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 20263Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Page 8 publishes cable, case and three pairs of EP-NI1000 tips. M pair fitted, not an extra pair. Japanese maker page explicitly includes instruction manual and warranty documentation.

Cables included

AGoogle Pixel Buds A-Series

Type	Count
USB-C to USB-A	1

Source1Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026USB-C to USB-A charging cable.

BSony WF-1000XM4

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

Source3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Page 8 states one supplied cable, approximately 20 cm.

Links

Not compared

Product page

support.google.com/googlepixelbuds/answer/75443321Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

www.sony.jp/headphone/products/WF-1000XM41Maker product pagesony.jp/headphone/products/WF-1000XM4Read 5 October 2026

Spec sheet

support.google.com/googlepixelbuds/answer/75443321Maker product pagesupport.google.com/googlepixelbuds/answer/7544332Read 10 October 2026

www.sony.jp/headphone/products/WF-1000XM4/spec.html2Maker product pagesony.jp/headphone/products/WF-1000XM4/spec.htmlRead 5 October 2026

Manual

Not available

helpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/wf1000xm4/v1/en/print.pdfRead 5 October 2026Original exact YY2948 Help Guide, 144 pages, revision 5-027-983-11(6). Technical tables, package, controls, charging, calls and updated multipoint chapters read. Later software capabilities are qualified separately from launch.

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

Not available

Not available

Warranty

1 of 1 differ

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

1year11Maker product pagesupport.google.com/product-documentation/answer/9322027Read 11 October 2026Google Hardware Limited Warranty for the USA and Canada: one year from original retail purchase for a new Google product. Other regions can differ.

Not available

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