Headsets and headphones / Compare

Bowers & Wilkins Px7 S3 vs Sonos Ace

A

Product A: Bowers & Wilkins

Px7 S3

75 of 161 known

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B

Product B: Sonos

Ace

67 of 161 known

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Only differences

ABowers & Wilkins Px7 S3

BSonos Ace

General

3 of 8 differ

Series

Not available

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

301020-54-00-308, 301020-67-00-308, 301020-66-00-308, 301020-83-00-308, 301020-84-00-3081Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026US store part number 301020-54-00-308 for Anthracite Black. The colour swatches carry 301020-67-00-308 (Canvas White), 301020-66-00-308 (Indigo Blue), 301020-83-00-308 (Frost Blue) and 301020-84-00-308 (Vintage Maroon).

ACEG1US1BLK, ACEG1US11Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Page data lists SKU ACEG1US1BLK for Black and ACEG1US1 for Soft White. These are US SKUs.

GTIN / EAN

Not available

Not available

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

24 April 20253Press articletheabsolutesound.com/articles/bowers-wilkins-announces-its-all-new-px7-s3Read 23 October 2026Launch announcement from Worthing, UK, dated April 24, 2025. North American price and availability came later.

21 May 20247Press articletomsguide.com/audio/headphones/sonos-officially-unveils-its-first-wireless-headphones-heres-everything-you-need-to-know-about-the-sonos-aceRead 11 October 2026Sonos Ace announced May 21, 2024.

Status

Available1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026In stock on the maker US store at $479, with dealer links.

Available1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Sold on the maker US store, currently at $239 against a $349 list price.

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.

Not available

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

$4495Press articletechradar.com/audio/wireless-headphones/good-news-the-five-star-wireless-headphones-we-rate-higher-than-the-sony-wh-1000xm6-are-finally-available-to-order-in-the-usRead 23 October 2026News dated May 21, 2025: US price $449, orders from bowerswilkins.com, shipping from June 10, 2025. US dollars before sales tax. The maker US page now lists $479.

$4497Press articletomsguide.com/audio/headphones/sonos-officially-unveils-its-first-wireless-headphones-heres-everything-you-need-to-know-about-the-sonos-aceRead 11 October 2026Expected prices at the announcement: USD $449 / GBP 449 / EUR 499 / AUD $699. TechCrunch and What Hi-Fi? also give $449.

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.

€4296Reviewtomsguide.com/audio/bowers-and-wilkins-px7-s3-reviewRead 23 October 2026Review of April 24, 2025: on sale in the UK and EU that day, €429 in the EU. Country and tax treatment are not stated, so it is the EU price as reported.

€4997Press articletomsguide.com/audio/headphones/sonos-officially-unveils-its-first-wireless-headphones-heres-everything-you-need-to-know-about-the-sonos-aceRead 11 October 2026Expected EUR 499 at the announcement. Digital Trends gives EUR 499 as the 2024 launch price. Tax treatment is not stated.8Press articledigitaltrends.com/home-theater/sonos-ace-ultra-may-launch-cheaper-than-the-original-ace-new-leak-revealsRead 11 October 2026The Ace launched in 2024 at EUR 499.

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

Not available

Not available

ColoursiThe maker's own colour names

Anthracite Black, Canvas White, Indigo Blue, Frost Blue, Vintage Maroon1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Finishes: Canvas White, Anthracite Black, Indigo Blue, Frost Blue, Vintage Maroon. The launch range was Anthracite Black, Canvas White and Indigo Blue. Frost Blue and Vintage Maroon came later.

Black, Soft White1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Colors: Black, Soft White. Finish: Matte.

Segment

Music1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Sold as high-performance noise-cancelling wireless headphones for music, films and games, with sound quality as the focus.

Music1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Maker markets it as noise-canceling headphones for music, spatial audio and TV listening.

Design

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Form factor

Over-ear1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Wearing style: Over-ear Noise Cancelling Headphones.

Over-ear1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Over-ear headphones. The page and What Hi-Fi? call them over-ear.

Ear cup enclosureiClosed, open or semi-open acoustic enclosure. This does not describe how the headset folds.

Closed11Measurementrtings.com/headphones/reviews/bowers-wilkins/px7-s3Read 23 October 2026Public header: Enclosure Closed-Back, over-ear, wireless, noise cancelling, mic.

Closed4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026The TrueCinema section says the aim is not to feel like you are wearing closed-back headphones, which describes the Ace as closed-back. HeadphoneCheck lists the type as closed.5Reviewheadphonecheck.com/test/sonos-aceRead 11 October 2026Technical specifications: Type closed, ear coupling over-ear, transducer principle dynamic.

Wearing style

Headband4Reviewtechradar.com/audio/headphones/bowers-wilkins-px7-s3-reviewRead 23 October 2026Describes a new headband and redesigned arm mechanism.

Headband2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Extendable stainless steel headband with rotating ear cups.

FoldingiFlat means the ear cups rotate flat. Inward means the ear cups fold toward the headband.

Flat7Reviewexpertreviews.co.uk/technology/headphones-audio/bowers-wilkins-px7-s3-reviewRead 23 October 2026Build: the headphones fold flat only. The case is slimmer and semi-hard.

Flat4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026The ear cups swivel flat but do not fold up. Shotkit also says they do not fold.

Swivelling ear cupsiEar cups can rotate relative to the headband. Tilting alone does not count.

Yes7Reviewexpertreviews.co.uk/technology/headphones-audio/bowers-wilkins-px7-s3-reviewRead 23 October 2026Fold flat only means the ear cups rotate flat. SoundGuys says the headphones lie flat in the case.8Reviewsoundguys.com/bowers-and-wilkins-px7-s3-review-an-unexpected-anc-heavyweight-142231Read 23 October 2026Headphones lie flat in the case.

Yes2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026The extendable stainless steel headband and rotating ear cups adjust for a bespoke fit.4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026The ear cups swivel flat.

RGB lighting

Not available

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Lighting zonesiNumber of independently controllable lighting areas across both ear cups.

Not available

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Drivers and sound

4 of 20 differ

Driver type

Dynamic1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Drive units: 2 x 40mm dynamic full range bio cellulose driver.

Dynamic1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Custom-designed 40 mm dynamic driver in each cup.

Driver sizeiDiameter of the largest sound driver. Do not use the microphone capsule diameter.

40mm1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Drive units: 2 x 40mm dynamic full range bio cellulose driver.

40mm1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Custom-designed 40 mm dynamic driver in each cup.

Drivers per sideiNumber of sound-producing transducers in one side, excluding microphones.

11Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 20262 x 40 mm drive units across the two ear cups, so one per side.

11Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Custom-designed 40 mm dynamic driver in each cup.

Diaphragm material

Bio-cellulose1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Drive units: bio cellulose driver.

Not available

Magnet

Not available

Not available

Frequency response (wired or passive)iPublished acoustic range for wired listening, or the maker’s single range when no mode is distinguished. Power state and test standard belong in the source note.

Not available

Not available

Wireless audio transmission bandiFrequency range of audio transmitted over the wireless connection, not the acoustic response of the driver. Codec, sampling rate and bitrate conditions belong in the source note. When the maker gives a range per codec, the widest range is stored and its codec goes in the source note.

Not available

Not available

Impedance (passive when specified)iUse the headset-off value for a passive analog connection when the maker publishes both powered and passive values. Note the power state and test frequency.

Not available

Not available

Sensitivity (passive when specified)iUse the headset-off figure when both powered and passive values exist. The power or voltage reference, test distance and frequency belong in the source note.

Not available

Not available

Sensitivity referenceiPublished power or voltage reference for sensitivity. Do not assume 1 mW when the source gives only a dB value.

Not available

Not available

THD (claimed)iPublished distortion figure or numerical upper bound. The source note states any less-than sign and test level.

Not available

Not available

Max input power

Not available

Not available

Max digital audio sample rateiHighest supported digital audio sample rate over a USB cable or wireless dongle. This is not the microphone rate or acoustic frequency response.

96kHz2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Data sheet: USB audio up to 24 bits, 96 kHz.

48kHz4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026Connected to a laptop over USB-C, the headphones support sample rates of 16-bit/48kHz.

Max digital audio bit depthiHighest published digital playback bit depth over a USB cable or wireless dongle.

24bits2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Data sheet: USB audio up to 24 bits, 96 kHz.

16bits4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026Connected to a laptop over USB-C, the headphones support sample rates of 16-bit/48kHz.

DAC

Not available

Not available

Personalised soundiA manufacturer-supported hearing test or ear scan creates a device sound profile tailored to the listener. Generic equalizer adjustments do not count.

Not available

Not available

Onboard EQiCustom playback EQ profiles stored in the headset and applied without the host app running. Note supported active connections. Receiver-only or software-only EQ does not count.

Not available

Not available

Custom EQ bandsiNumber of bands in the custom playback equalizer. Microphone EQ bands are excluded.

51Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Technical features: 5 band customisable EQ + TrueSound mode.

Not available

EQ presets

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

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Spatial audio supportiNamed headset or host spatial-audio systems that the maker or reviewer explicitly supports. A platform feature may require compatible hardware, software or a separate licence.

Not available

Dolby Atmos1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Dolby Atmos requires a supported Sonos soundbar and the Sonos app for TV Audio Swap. Spatial audio from supported services and devices works over Bluetooth.

Spatial audio licence includediA paid spatial-audio licence is bundled or embedded. Compatibility with a separately purchased app does not count.

Not available

Not available

Head tracking

Not available

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Sonos Intelligent Motion Processing with Dolby Head Tracking. Enable it in the Sonos app. The Sonos Ace must be registered in the app.

Noise cancelling

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Active noise cancelling

Yes1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Page title: noise-cancelling wireless headphones with advanced noise cancellation.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Active Noise Cancellation dynamically adapts to fit, blocking external sounds. Aware mode blends ambient sound with the content.

ANC typeiFeedforward uses outside microphones. Feedback uses inside microphones. Hybrid uses both. Voice-call noise filtering is separate.

Hybrid1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Microphones: 4 mics per earcup (1x FB + 2x FF). FB is a feedback microphone and FF is a feedforward microphone, so the ANC uses both.3Press articletheabsolutesound.com/articles/bowers-wilkins-announces-its-all-new-px7-s3Read 23 October 2026Drive-unit microphones (feedback) and ambient microphones (feedforward) are both used.

Not available

ANC microphonesiTotal microphones used for active playback noise cancellation across both sides. Do not substitute the total physical or voice microphone count.

61Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 20261 feedback and 2 feedforward microphones per earcup, which is 6 for ANC. The page counts 4 per earcup, 8 in total. The press launch says two microphones monitor the drivers and four monitor ambient noise.3Press articletheabsolutesound.com/articles/bowers-wilkins-announces-its-all-new-px7-s3Read 23 October 2026Eight microphones in total: two measure each drive unit's output, four monitor ambient noise and two handle voice clarity. That gives six for ANC.7Reviewexpertreviews.co.uk/technology/headphones-audio/bowers-wilkins-px7-s3-reviewRead 23 October 2026Two ambient microphones plus one internal microphone per ear cup, and a pair of voice microphones.

Not available

Adaptive ANCiNoise cancellation automatically changes with the environment or fit. Manually choosing a level does not count.

Not available

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Active Noise Cancellation dynamically adapts to fit and surroundings.

ANC levelsiNumber of adjustable cancellation strength steps. Off and transparency modes are excluded.

Not available

Not available

ANC attenuation (claimed)

Not available

Not available

Transparency mode

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 3.1: Ambient Pass-Through mode lets you hear outside sound without removing the headphones.3Press articletheabsolutesound.com/articles/bowers-wilkins-announces-its-all-new-px7-s3Read 23 October 2026Modes are Off, Pass-Through and On, with a transparency mode in the app.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Aware mode blends ambient sound with your content.

Adjustable transparency

Not available

Not available

Conversation detectioniAudio pauses or lowers automatically when the wearer speaks. Voice assistant activation does not count.

Not available

Not available

Wind noise reduction

Not available

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Specially engineered mesh over the microphones minimizes noise from wind on phone calls.

Measured

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Frequency response notesiMeasured by a reviewer, not claimed by the maker

Boosted bass sound signature. The bass is very emphasized and the treble slightly underemphasized against the RTINGS target.11Measurementrtings.com/headphones/reviews/bowers-wilkins/px7-s3Read 23 October 2026Public header, methodology v2.3, reviewed 2026-01-20: Sound Signature Boosted Bass. Test settings and the full curve are member-only and were not used.

Not available

Bass amountiReviewer’s bass deviation from its stated target. Positive is more bass. Target and test method belong in the source note.

7dB11Measurementrtings.com/headphones/reviews/bowers-wilkins/px7-s3Read 23 October 2026Public header: Bass Amount Very Emphasized (7 dB) against the RTINGS target curve.

Not available

Treble amountiReviewer’s treble deviation from its stated target. Positive is more treble. Target and test method belong in the source note.

-3dB11Measurementrtings.com/headphones/reviews/bowers-wilkins/px7-s3Read 23 October 2026Public header: Treble Amount Slightly Underemphasized (-3 dB) against the RTINGS target curve.

Not available

Deviation from targetiReviewer’s full-range error from its target curve. Do not substitute a regional bass or treble error.

Not available

Not available

Consistency between fittingsiReviewer’s standard deviation across repeated fittings. Test rig and fitting procedure belong in the source note.

Not available

Not available

Harmonic distortioniIndependently measured harmonic distortion, with test level and method in the source note.

Not available

Not available

Sound leakageiIndependently measured leakage at 30 cm. Playback level and method belong in the source note.

Not available

Not available

Measured noise isolationiIndependently measured attenuation. Positive values mean more noise reduction. ANC state, rig and frequency bands belong in the source note.

Not available

Not available

Noise isolation (measured, best)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

Mic quality notesiMeasured by a reviewer, not claimed by the maker

Call quality is on par with competitors. The microphones reject some noise while keeping voice quality, but will not match a dedicated studio microphone.8Reviewsoundguys.com/bowers-and-wilkins-px7-s3-review-an-unexpected-anc-heavyweight-142231Read 23 October 2026Review published 2025-08-13 and updated 2025-11-19. Mic demos in office, street, windy and reverberant settings. The reviewer calls call quality on par with competitors. No microphone measurements are given.

Not available

Mic low-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratioiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured latencyiEnd-to-end latency measured by a reviewer for a specific connection, platform and codec. Firmware, method and operating mode belong in the source note.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Measured battery lifeiReviewer’s continuous playback test. State the connection, ANC and lighting where known. Unknown settings stay omitted and are described in the source note.

ABowers & Wilkins Px7 S3

Connection	ANC	Hours (h)
Bluetooth	Yes	31.92

Source9Measurementsoundguys.com/bowers-and-wilkins-px7-s3-vs-apple-airpods-max-149910Read 23 October 2026SoundGuys test track of real music peaking at 75 dB SPL, ANC on, 31 hours 55 minutes. The article does not name the codec. The only wireless connection is Bluetooth. RTINGS gives 29 hours in its verdict text and does not state its settings in the public part.

BSonos Ace

Not available

Battery life (measured, max)iMeasured by a reviewer, not claimed by the maker

31.92h=CalculatedFrom Measured battery life

Not available

Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iIndependently weighed headset. A review that repeats the maker’s number does not qualify. Cable and microphone inclusion belong in the source note.

Not available

313g(11 oz)5Reviewheadphonecheck.com/test/sonos-aceRead 11 October 2026Weighed by HeadphoneCheck: 313 g without cable and 329 g with cable.

Microphone

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MicrophoneiMain microphone used for speech. Secondary internal microphones may be described in the source note.

Built-in1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Page: 8 microphones in the ear cups. No boom.

Built-in2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Eight microphones in the ear cups for noise control and voice targeting. No boom microphone.

Microphone element

Not available

Not available

Microphone pickup patterniUse the maker’s exact named pattern. Unidirectional does not establish whether the capsule is cardioid, supercardioid or hypercardioid.

Not available

Not available

Voice microphonesiTotal microphones used for voice pickup or beamforming across both sides. ANC-only microphones are excluded.

Not available

Not available

Total microphonesiEvery physical microphone across the headset, including call, ANC and calibration microphones. Shared microphones count once. Excludes microphones in charging cases or receivers, and vibration sensors. Use an explicitly published physical total, never a sum of overlapping role counts.

81Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Microphones: 8 mics total, 4 per earcup. The voice-only count is not stored. The page says all mics are used for talk, while the launch coverage names two voice microphones.

81Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Eight microphones for noise control and voice targeting. The maker states the total for the headset.

Mic frequency responseiAcoustic microphone response, not its digital sampling rate. Connection-specific ranges belong in the source note.

Not available

Not available

Mic sensitivityiPublished microphone sensitivity. Reference such as dBV/Pa or dBFS, frequency and distance belong in the source note.

Not available

Not available

Mic signal-to-noiseiPublished microphone signal-to-noise ratio. Minimum or typical conditions belong in the source note.

Not available

Not available

Mic sample rateiExplicitly published digital microphone capture or speech sampling rate. State the audio route in the source note, or say it is unpublished. Internal capture does not prove the effective rate on every connection. Acoustic bandwidth, playback rate and generic microphone-chip capability do not qualify.

Not available

Not available

Mic noise reductioniProcessing that removes noise from transmitted speech. Playback ANC and a directional microphone alone do not count.

Not available

DSP1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Beamforming microphones target your voice and suppress background noise on calls. Stored as DSP processing. The maker does not claim AI processing.

Flip to mute

Not available

Not available

Mute button

Not available

Not available

Mute indicatoriPublished indication of microphone mute. mechanical_marker is a visible physical marker showing the microphone's mute-switch position. LED options require an electronic light. The in-line controller option is for a mute light on a cable remote.

Not available

Not available

Sidetone

Not available

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Sidetone helps you hear your own voice when Active Noise Cancellation is enabled.2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Sidetone is a setting in the Sonos app Noise Control section. It may not work when the headphones are plugged into another device during a call.

Adjustable sidetone

Not available

Not available

Foam microphone windscreeniA foam cover for the voice microphone. An internal metal mesh pop filter does not count.

Not available

Not available

Connectivity

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Audio connectionsiConnections that carry playback audio. Charging or firmware USB alone does not count as USB audio.

Bluetooth, USB, Analog2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Bluetooth, the USB-C to USB-C cable (USB audio) and the USB-C to 3.5 mm cable (analog source).

Bluetooth, USB, Analog2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Bluetooth. The USB-C port also takes line-in audio over a USB-C to 3.5 mm cable (for analog sources) or a USB-C to USB-C cable. Bluetooth is disabled while a USB-C cable is connected.

Analog source plugsiAnalog plug(s) supplied for the source device, including adapters. The headset-side jack is listed separately.

3.5 mm TRS2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 7.1.1: the supplied cable has a 3.5 mm stereo jack for a source with an analog output.

Not available

Cable connector on headsetiConnection used by the playback cable at the headset. A fixed cable is not replaceable through a headset jack.

USB-C2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 7.1.1: the audio cable plugs into the USB-C socket on the right earcup.

USB-C2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Both included cables plug into the headset USB-C port. The 3.5 mm cable is not compatible with third party cables.

Longest included cableiLength of the longest supplied cable, including charging and dongle cables. Individual cable lengths are listed in Cables included.

1.2m1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026In box: 1.2m USB-C to 3.5mm stereo jack audio cable and 1.2m USB-C to USB-C cable.

1.2m1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Longest included cable is the USB-C to 3.5 mm cable, 3.94 ft (1.2 m).

Headset USB plug or portiUSB plug or port on the headset or its included wired audio adapter. A charging-only USB port can appear here.

USB-C2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026USB-C socket on each earcup, one for the charging and USB cable and one for the audio cable.

USB-C2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026USB-C port for charging and line-in.

Audio over USB-C cableiPlayback through a USB-C cable or included wired USB-C audio adapter. A charging-only USB-C port does not count.

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 7.1.2: the headphones work as a USB sound output when connected to a computer with the USB-C cable.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Lossless audio over Bluetooth with a supported device or via a USB-C connection. The page also says to use the USB-C cable for wired listening.

Passive wired listeningiAnalog playback works with the headset powered off or its battery empty. An active analog converter that needs headset power does not count.

No2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Note in 7.1.1: the headphones must have enough charge and be on to play from an analog source.6Reviewtomsguide.com/audio/bowers-and-wilkins-px7-s3-reviewRead 23 October 2026No option for wired listening when the battery is dead.

No5Reviewheadphonecheck.com/test/sonos-aceRead 11 October 2026The USB-C to 3.5 mm cable still needs the headphones switched on. MusicTech says they do not work in passive mode over 3.5 mm.6Reviewmusictech.com/reviews/consumer/sonos-ace-reviewRead 11 October 2026They do not work in passive mode over 3.5 mm. They always have to be on and charged.

Wireless receiveriDedicated wireless audio receiver or dongle. A wired USB sound card does not count.

None2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026No dongle or receiver in the box.

None2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Bluetooth headphones. No dongle in the box.

Wireless receiver connectoriPhysical USB connector on the receiver. Supplied extension cables and adapters are explained in the source note. Both means two native connector types.

Not available

Not available

Wireless range (claimed)iMaker’s advertised wireless range. Connection and indoor or outdoor conditions belong in the source note. Measured distance is not stored here.

Not available

Not available

Bluetooth

5.31Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Technical features: Bluetooth 5.3 with aptX Lossless technology.

5.41Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Bluetooth 5.4

Bluetooth codecsiNamed Bluetooth audio codecs supported by this exact model. Host, firmware and operating-mode restrictions belong in the source note.

SBC, AAC, aptX Classic, aptX HD, aptX Adaptive, aptX Lossless1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Bluetooth codecs: aptX Lossless, aptX Adaptive, aptX HD, aptX Classic, AAC, SBC. SoundGuys says iOS uses AAC only and Android can use the aptX codecs.

SBC, AAC, aptX HD, aptX Adaptive, aptX Adaptive Low Latency, aptX Lossless3Maker product pagesupport.sonos.com/en/article/supported-bluetooth-audio-formats-for-sonos-aceRead 11 October 2026Maker article lists SBC, AAC, aptX Lossless, aptX Adaptive, aptX Adaptive Low Latency and aptX HD. The page text says Sonos headphones. The article URL names the Sonos Ace. Lossless over Bluetooth needs an Android device with Qualcomm Snapdragon Sound aptX for Lossless. What Hi-Fi? and HeadphoneCheck list only SBC, AAC and aptX Lossless.4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026Tech specs list SBC, AAC and aptX Lossless. The maker support article lists more aptX variants and is stored.

LE AudioiLE Audio playback support. Bluetooth Low Energy for app control alone does not count.

Not available

Not available

AuracastiAuracast broadcast audio support. Required phone, firmware and app conditions belong in the source note.

Not available

Not available

Bluetooth multipointiCan remain connected to multiple Bluetooth source devices at once. Mixing Bluetooth with a proprietary dongle is a separate field. A maker's dual connection to two Bluetooth devices at once counts.

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Data sheet lists multipoint connection. Section 5.3: paired with up to two devices, with audio from one at a time.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Sonos Ace must be registered in the Sonos app to enable Bluetooth multipoint.

Multipoint devicesiNumber of Bluetooth source devices connected at once, not the number remembered for later pairing.

22Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 5.3: up to two devices, audio plays from one at a time.

22Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026You can connect Sonos Ace to 2 Bluetooth devices and automatically switch between audio streams. Multipoint is off by default.

Paired devices remembered

Not available

Not available

Mixes 2.4 GHz and Bluetooth audioiPlays both wireless audio streams at the same time. Automatic switching or Bluetooth standby does not count.

Not available

Not available

Fast pairing

Google Fast Pair2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 5.1.3: pairs with compatible Android devices using Google Fast Pair.

Not available

Base station

Not available

Not available

Latency

None of 2 known

Low latency modeiA selectable mode intended to reduce audio delay. A low-latency connection without a distinct mode does not count.

Not available

Not available

Claimed latencyiMaker’s claimed delay for the stated connection and mode. Minimum claims and host restrictions belong in the source note.

Not available

Not available

Compatibility

2 of 3 differ

Compatible platformsiPlatforms with a documented audio path. This does not imply every connection or microphone function works. Platform editions must be checked individually.

iOS, Android, Windows, macOS2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Sections 5.1.1 and 5.1.2: iPhone, Mac, PC and Android pairing. The app is for iOS and Android.

Android, iOS1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Page says Works with Apple and Android.

Connection per platformiOnly explicitly documented playback paths for the exact model. Microphone support is separate. Leave unknown microphone support omitted. An Xbox and a PlayStation edition of one headset can connect differently, so it is per variant.

ABowers & Wilkins Px7 S3

Platform	Connection
iOS	Bluetooth
Android	Bluetooth
Windows	Bluetooth
macOS	Bluetooth
macOS	USB

Source2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Bluetooth pairing for iPhone, Mac, PC and Android. Section 7.1.2 adds USB audio and a Mac setup note. Microphone use per platform is not stated.

BSonos Ace

Not available

Official licence

Not available

Not available

Battery and charging

6 of 13 differ

Battery capacityiRated capacity of one headset battery. Do not use case, receiver or total multi-battery capacity.

Not available

1,060mAh1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Li-ion, 1060 mAh battery

Swappable batteryiBattery can be exchanged by the user as part of normal operation. Service or recycling disassembly does not count.

No8Reviewsoundguys.com/bowers-and-wilkins-px7-s3-review-an-unexpected-anc-heavyweight-142231Read 23 October 2026Earpads and headband padding are replaceable. The battery and USB-C port are not.

Not available

Batteries includediNumber of headset batteries supplied, including the one already installed.

Not available

Not available

Claimed battery lifeiMaker’s maximum playback time per stated connection, codec, ANC, spatial audio and lighting settings. Name the spatial processing mode and other conditions in the source note. Unknown settings stay omitted.

ABowers & Wilkins Px7 S3

Connection	ANC	Hours (h)
Bluetooth	Yes	30

Source1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 202630 hours playback. The manual says 30 hours is with noise cancellation on at medium volume.2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Intro: up to 30 hours of wireless streaming with noise cancellation on at medium volume levels. Bluetooth codec is not stated.

BSonos Ace

Connection	ANC	Hours (h)
Bluetooth	Yes	30

Source1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Up to 30 hours of listening time or 24 hours of call time with Active Noise Cancellation or Aware mode enabled. Stored as the 30 hour listening claim. The 24 hour call time is not stored. The page says battery life varies by use and settings.

Battery life (claimed, max)

30h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

30h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

Not available

Not available

Charging port

USB-C2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 4: USB-C socket on the left earcup.

USB-C1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Charge with the included USB-C cable and a compatible power adapter.

Full charge timeiPublished time to fully charge a depleted headset. In-use charging can take longer.

120min2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 4: wait up to 2 hours for a full charge.

180min1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Complete charge from 0% requires up to 3 hours. Stored as 180 minutes, the upper bound.

Quick charge timeiCharge duration in the maker’s quick-charge claim. Read together with Quick charge playback.

15min1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 202630 hours playback, 7 hours with a 15 min charge.

3min1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Rapid charge provides 3 hours of listening time in 3 minutes from 0%.

Quick charge playbackiPlayback gained from Quick charge time. Charger power, codec, volume and ANC conditions belong in the source note.

7h1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 202630 hours playback, 7 hours with a 15 min charge.

3h1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Rapid charge provides 3 hours of listening time in 3 minutes from 0%.

Use while charging

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 4: the headphones can be used while charging.

Not available

Charging dock or stand

Not available

Not available

Controls

3 of 6 differ

Controls

Buttons2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Right earcup has volume up, volume down and a multifunction button. The left earcup has a power slider and a quick action button.

Buttons, Slider2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Content Key slides for volume and presses for playback, plus a Noise Control button and a Power/Bluetooth button. What Hi-Fi? calls the Content Key a slider and button.4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026Physical (not touch) controls. A multi-functional slider and button called the content key.

Volume control

Buttons2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Volume up and volume down buttons on the right earcup.

Not available

Game and chat mixiBalances separate game and chat audio streams. Mixing Bluetooth and dongle source volume alone does not count. Supported platforms belong in the source note.

Not available

Not available

Remappable controlsiOn-device button, touch or dial functions can be reassigned. Changing EQ alone does not count.

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 6.2.5: the quick action button can be customised in the app.

Not available

Wear detection

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 3.3: wear sensors on both sides pause playback and enter low power standby when removed.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Feature list: Wear detection.2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Wear detection is enabled by default and can be turned off in the Sonos app.

Voice assistant

Voice assistant of the connected device2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 3.2: the quick action button can call the voice assistant of the connected device.

Voice assistant of the connected device2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Press and hold the Noise Control / Voice Control button to activate the voice assistant on the connected device.

Comfort and build

6 of 11 differ

Headband type

Padded4Reviewtechradar.com/audio/headphones/bowers-wilkins-px7-s3-reviewRead 23 October 2026The headband is described as nicely padded, with a new headband and arm mechanism. The inner section of the headband can be replaced.

Padded5Reviewheadphonecheck.com/test/sonos-aceRead 11 October 2026The headband is well padded on the underside and trimmed with artificial leather.

Headband material

Fabric outer, memory foam padding under synthetic leather4Reviewtechradar.com/audio/headphones/bowers-wilkins-px7-s3-reviewRead 23 October 2026Fabric around the outside of the headband and earcups, with pleather over memory foam at the contact points.

Not available

Frame material

Not available

Stainless steel2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026The stainless steel headband smoothly extends and stays securely in place.

Ear cup material

Plastic with fabric finish10Spec databasesoundguys.com/product/bowers-and-wilkins-px7-s3Read 23 October 2026Spec table: ear cups pleather over memory foam. Tom's Guide describes premium-feeling plastic and the maker lists a fabric finish.

Not available

Ear pad material

Memory foam with synthetic leather4Reviewtechradar.com/audio/headphones/bowers-wilkins-px7-s3-reviewRead 23 October 2026Pleather over memory foam contact points.6Reviewtomsguide.com/audio/bowers-and-wilkins-px7-s3-reviewRead 23 October 2026Memory foam earcups with soft synthetic alternatives, no leather.

Memory foam covered in vegan leather4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026The ear pads use memory foam coated in a layer of vegan leather (polyurethane).

Replaceable ear pads

Yes4Reviewtechradar.com/audio/headphones/bowers-wilkins-px7-s3-reviewRead 23 October 2026The inner section of the headband and the earpads can be removed and replaced by a trained service engineer, not by the user.8Reviewsoundguys.com/bowers-and-wilkins-px7-s3-review-an-unexpected-anc-heavyweight-142231Read 23 October 2026Earpads and headband padding are replaceable.

Yes1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Replaceable ear cushions help extend the life of the headphones.2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Ear cushion replacement section.

Ear pad attachmentiHow a replacement ear pad attaches to the ear cup, not how the decorative outer cover attaches. A press-fit or snap-on pad counts as clip.

Not available

Magnetic2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Each cushion is held in place by magnets and comes off with a light pull. It snaps into place when reattached.4Reviewwhathifi.com/reviews/sonos-aceRead 11 October 2026The replaceable ear pads are attached to the frame by strong magnets.

Ear pad openingiUsable opening inside an ear pad, excluding the outer cushion. Depth is the internal space between pad surface and driver cover.

Not available

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Not available

Ear cushions2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Ear cushions can be easily replaced if they wear out.

Software

2 of 3 differ

Companion app

Bowers & Wilkins Music2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 6: Bowers & Wilkins Music app.

Sonos2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Use the Sonos app to adjust product settings.

App platforms

iOS, Android2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 6: free for iOS and Android.

Android, iOS2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Sonos app (iOS and Android).

User firmware updates

Yes2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Section 6.3: software updates are delivered through the app.

Yes2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Sonos app About screen: check for software updates and see the current software version.

Dimensions and weight

2 of 2 differ

Headset weightiPublished headset mass without detachable cable or microphone when stated. A fixed cable remains included. Any unqualified maker weight is identified in the source note.

300g(10.6 oz)1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Net weight 300g (without carry case).

312g(11 oz)1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Weight 0.69 lbs (0.312 kg)

Headset dimensionsiBody size with headband upright and ear cups in their normal wearing position. Width is across the head, height is top to bottom, and depth is front to back. Folded or flat-swivel dimensions are not substituted.

Not available

Width160Height191Depth85mm(6.3 × 7.5 × 3.3 in)1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Height 7.52 in (191 mm), Width 6.3 in (160 mm), Depth 3.35 in (85 mm)

Certifications

1 of 3 differ

Hi-Res Audio

Not available

Not available

Communication certifications

Not available

Not available

FCC ID

Not available

Not available

Other certifications

Apple MFi (Made for iPhone)2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Data sheet technical features: Apple MFi Made For iPhone.

Not available

In the box

2 of 3 differ

In the box

Px7 S3 wireless over-ear headphones, Carry case, USB-C to USB-C charging cable, USB-C to 3.5 mm audio cable, Documentation1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026In box accessories: 1.2m USB-C to 3.5mm stereo jack audio cable, 1.2m USB-C to USB-C cable, carry case. The manual also lists the documentation.

Sonos Ace headphones, USB-C to USB-C cable, USB-C to 3.5 mm cable, Travel case with removable cable pouch, Set up guide and legal and warranty information1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026Box contents: Sonos Ace, USB-C to USB-C cable, USB-C to 3.5 mm cable, travel case that includes a removable cable pouch, set up guide and legal and warranty information.

Cables includediSupplied playback, charging, dongle and adapter cables. A permanently attached headset cable is included and named as fixed.

ABowers & Wilkins Px7 S3

Type	Length (m)	Count
USB-C to USB-C cable	1.2	1
USB-C to 3.5 mm stereo jack audio cable	1.2	1

Source1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Both 1.2 m cables are listed under in box accessories.

BSonos Ace

Type	Length (m)	Count
USB-C to USB-C cable	0.75	1
USB-C to 3.5 mm cable	1.2	1

Source1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026USB-C to USB-C cable 2.46 ft (0.75 m). USB-C to 3.5 mm cable 3.94 ft (1.2 m).

Carrying caseiSupplied carrying case or pouch. A retail carton does not count as a carrying case.

Hard1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026Carry case is in the box. Tom's Guide calls it a hard case. Expert Reviews calls it semi-hard.6Reviewtomsguide.com/audio/bowers-and-wilkins-px7-s3-reviewRead 23 October 2026Verdict lists the best hard case yet. The case has a magnetically closing section for the cables.

Hard5Reviewheadphonecheck.com/test/sonos-aceRead 11 October 2026The Ace arrives in a felt-covered hard case made of recycled plastic with a zip. Shotkit calls it semi-hard.

Links

Not compared

Product page

www.bowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.html1Maker product pagebowerswilkins.com/en-us/product/over-ear-headphones/px7-s3/301020.htmlRead 23 October 2026

www.sonos.com/en-us/shop/sonos-ace1Maker product pagesonos.com/en-us/shop/sonos-aceRead 11 October 2026

Spec sheet

Not available

Not available

Manual

werner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdf2Owner's manualwerner-musica.com/wp-content/uploads/2025/06/Px7S3_Manual_.pdfRead 23 October 2026Owner's manual, Spanish copy hosted by a retailer, with the data sheet on the last page. An English copy exists on the maker support site.

www.sonos.com/en-us/guides/sonosace2Owner's manualsonos.com/en-us/guides/sonosaceRead 11 October 2026Sonos Ace product guide.

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

None of 1 known

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.

Not available

Not available

Both are also in the API. Back to all headsets and headphones.