Headsets and headphones / Compare

Bose QuietComfort Ultra Headphones (2nd Gen) vs Bowers & Wilkins Px7 S3

A

Product A: Bose

QuietComfort Ultra Headphones (2nd Gen)

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B

Product B: Bowers & Wilkins

Px7 S3

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Every value links to where we found it.

Only differences

ABose QuietComfort Ultra Headphones (2nd Gen)

BBowers & Wilkins Px7 S3

General

5 of 8 differ

Series

QuietComfort1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Product title QuietComfort Ultra Headphones (2nd Gen), family QuietComfort. Exact second generation product page.

Not available

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

443987, 890101-0100, 890101-0200, 890101-0300, 890101-0400, 890101-0500, 890101-0110, 890101-01202Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Model number: 443987

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).

GTIN / EAN

0017817859585, 0017817859592, 001781785956110Retailer pageaxro.com/en/boseRead 30 September 2026Public product and variant cards: OEM 890101-0100 EAN 0017817859585, 0300 EAN 0017817859592, 0200 EAN 0017817859561. No login or price content used.

Not available

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

10 September 20257Press releasebose.com/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphonesRead 30 September 2026Official launch announcement dated September 10, 2025.

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.

Status

Available1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Add to Cart on 2026-09-28

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.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Bose QuietComfort Ultra Headphones7Press releasebose.com/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphonesRead 30 September 2026Bose Unveils the Next Generation of the QuietComfort Ultra Headphones. The 2nd Gen deliver a new level of performance over their predecessor.

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

Not available

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

$4497Press releasebose.com/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphonesRead 30 September 2026US launch release: retailing for $449.

$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.

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.

€4498Press releasebose.fr/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphonesRead 8 October 2026Opening paragraph: available September 10 for 449 EUR.

€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.

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

US1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026US manufacturer storefront is an explicit US sale listing.

Not available

ColoursiThe maker's own colour names

Black, White, Midnight Violet, Desert Gold, Driftwood Sand, Cherry Chocolate, Olive Green1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Colours sold on bose.com (US) on 2026-09-28. What Hi-Fi lists White as White Smoke. Cherry Chocolate and Olive Green are later additions

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.

Segment

Music1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Sold under Headphones > Noise Cancelling Headphones, for music and video listening. Not a gaming headset

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.

Design

1 of 7 differ

Form factor

Over-ear1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Headphone Fit: Around Ear Circumaural.

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

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

Closed6Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Enclosure: Closed-Back

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

Wearing style

Headband1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Headband, Band Style/Fit: On Head Adjustable

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

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

Flat and inward2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Rotate both earcups inward to lay flat, slide up and fold the left earcup 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.

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

Yes2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Store the Headphones chapter: rotate both earcups so they lie flat. Fold each earcup toward the headband into the case.

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.

RGB lighting

Not available

Not available

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

Not available

Not available

Drivers and sound

6 of 20 differ

Driver type

Dynamic17Reviewtechradar.com/news/best-bose-headphonesRead 8 October 2026The best Bose headphones overall section, item 2 explicitly titled QuietComfort Ultra Headphones (2nd Gen), Specifications: Driver type Dynamic driver. Adjacent original-generation and earbud sections are not inherited.

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.

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

35mm14Reviewtechgearlab.com/reviews/audio/wireless-headphones/bose-quietcomfort-ultra-2nd-gen-headphonesRead 30 September 2026Compare table: Driver Size 35 mm for Bose Quiet Comfort Ultra 2nd Gen. Maker does not publish it.

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.

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

Not available

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.

Diaphragm material

Not available

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

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.

48kHz1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026USB audio at 16-bit, 44.1 kHz or 48 kHz.

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.

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

16bits1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026FAQ What is USB audio: USB-C receives 16-bit, 44.1 kHz or 48 kHz from compatible source files.

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.

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.

32Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Battery test note: 3-band EQ set to zero

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

EQ presets

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 3 differ

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.

Bose Immersive Audio, Cinema Mode, 5.1 Spatial Audio1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Features, Multiple Listening Modes: Bose Immersive Audio and Cinema Mode. This spatializes music and video and is not host codec support.16Maker product pagesupport.bose.com/article/quietcomfort-ultra-headphones-2nd-gen-using-le-audioRead 8 October 20265.1 Spatial Audio section: optional beta LE Audio must be enabled, with a compatible Android host and true 5.1-channel content. Headphones process source 5.1 audio rather than upmixing stereo. Existing Bose Immersive Audio and Cinema Mode are separate processing modes.

Not available

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

Yes2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Immersive audio Still setting keeps the speakers in place when you move your head

Not available

Noise cancelling

3 of 10 differ

Active noise cancelling

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Mode descriptions: Quiet engages full noise cancellation.

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.

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

Hybrid13Retailer pagebhphotovideo.com/c/product/2002073-REG/bose_890101_0120_quietcomfort_ultra_wireless_noise.htmlRead 30 September 2026Key Features: Hybrid Noise-Canceling Technology. Maker count/type not explicitly stated.

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.

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

Not available

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.

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

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Active Sense automatically adjusts noise cancellation to the environment in Aware mode

Not available

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

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Mode descriptions: Aware lets outside sound in. Active Sense automatically adjusts cancellation. It is not a manually adjustable ambient gain.

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.

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

Yes2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Custom modes offer noise cancellation or wind block

Not available

Measured

6 of 21 differ

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

Warm. Emphasized bass and underemphasized treble. Minimal peaks and dips except some treble fluctuations. Low harmonic distortion.6Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Public Audio Reproduction Accuracy: fuller bass, mostly flat mids, warmer treble, minimal peaks and dips except treble fluctuations, low distortion. The visible Sound Profile descriptors of 3 dB and -4 dB are separately sourced.

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.

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

3dB6Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Test bench 2.3. Emphasized (3 dB)

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

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

-4dB6Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Test bench 2.3. Underemphasized (-4 dB)

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

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

Decent. Mostly flat response in the voice range gives fairly natural speech. Noise handling is satisfactory but does not fully remove background noise.6Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Public Our Verdict, Microphone: mostly flat voice-range response and natural speech. Noise rejection prioritizes voice but does not eradicate environmental noise.

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.

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.

ABose QuietComfort Ultra Headphones (2nd Gen)

Connection	ANC	Hours (h)
Bluetooth	Yes	27.2

Source5Reviewsoundguys.com/bose-quietcomfort-ultra-headphones-2nd-gen-review-boring-refresh-or-notable-upgrade-144545Read 30 September 2026Battery section: standardized ANC-on rundown 27 h 12 min. RTINGS 37 h row removed because ANC state is not public.

BBowers & 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.

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

27.2h=CalculatedFrom Measured battery life

31.92h=CalculatedFrom Measured battery life

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

Not available

Microphone

4 of 16 differ

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

Built-in1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Microphones: Built-in Microphone.

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.

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.

42Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Four microphones for phone calls, two per earcup. Bose page: 1 inside and 4 outside each earcup in total

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.

Not available

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.

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

Not available

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

Yes15Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 8 October 2026Page 22, Noise cancellation while on a call: Self voice is activated during calls to let the wearer hear their own voice.

Not available

Adjustable sidetone

Yes15Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 8 October 2026Page 22: adjust Self voice in the Bose app Settings menu. Noise-cancellation adjustment is a separate control.

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

9 of 20 differ

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

Bluetooth, Analog, USB1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026FAQ USB audio and the package analog cable, Technical Specifications Wireless Connectivity Bluetooth. Three audio paths: Bluetooth, analog, USB-C.

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).

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

3.5 mm TRS5Reviewsoundguys.com/bose-quietcomfort-ultra-headphones-2nd-gen-review-boring-refresh-or-notable-upgrade-144545Read 30 September 20263.5mm to 2.5mm TRS cable

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.

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

2.5 mm2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 20262.5 mm AUX audio port on the left earcup

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.

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

Not available

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.

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-C1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Charging Interfaces: USB C PORT. The FAQ says USB audio uses the same connector.

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.

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.

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026FAQ What is USB audio: USB-C receives audio from compatible source files.

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.

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 manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026The headphones must be powered on to use the audio cable

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.

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

None2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Bluetooth only, no receiver in the box

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

9m1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Bluetooth Range 30 ft. The owner's guide gives 30 ft (9 m)

Not available

Bluetooth

5.41Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Bluetooth Version: 5.4.

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.

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

SBC, AAC, aptX Adaptive, LC32Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026aptX Adaptive with Snapdragon Sound devices. SBC and AAC from What Hi-Fi3Reviewwhathifi.com/headphones/bose-quietcomfort-ultra-headphones-2nd-genRead 30 September 2026Bluetooth SBC, AAC, aptX Adaptive. SoundGuys adds aptX Lossless and aptX Low Latency within the aptX Adaptive family7Press releasebose.com/pressroom/bose-unveils-the-next-generation-of-the-quietcomfort-ultra-headphonesRead 30 September 2026SBC, AAC, apt X Adaptive. Lossless and low latency are adaptive modes requiring Snapdragon Sound-certified source devices.16Maker product pagesupport.bose.com/article/quietcomfort-ultra-headphones-2nd-gen-using-le-audioRead 8 October 2026Existing SBC, AAC and aptX Adaptive remain Classic Audio codecs. LC3 is explicitly used by the optional beta LE Audio mode on supported Android 13 or newer devices. Bose app setting and headphone restart required.

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.

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

Yes16Maker product pagesupport.bose.com/article/quietcomfort-ultra-headphones-2nd-gen-using-le-audioRead 8 October 2026Exact-model Using LE Audio support article, checked October 8, 2026: currently a beta feature. Opt in using Bose app Settings > Bluetooth Connections > Use LE Audio When Available. Selected Android 13 or newer hosts with Bluetooth 5.2 or newer required. This is conditional current support, not a launch or default-mode claim.

Not available

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

Yes16Maker product pagesupport.bose.com/article/quietcomfort-ultra-headphones-2nd-gen-using-le-audioRead 8 October 2026Same beta LE Audio article explicitly describes receiving shared or public Auracast broadcasts through these headphones. Requires compatible Android host and LE Audio enabled. Voice Assistant and Spotify Tap shortcuts are unavailable in LE Audio mode.

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 manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Bluetooth Connections / Connect another device: can actively connect to two devices at a time, multipoint enabling setting described.

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.

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

22Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Bluetooth Connections / Connect another device: can actively connect to two devices at a time, multipoint enabling setting described.

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.

Paired devices remembered

62Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Up to six devices in the device list, two connected at a time

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 manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Bluetooth Connections / Android using Fast Pair: a compatible Android device receives a pairing prompt.

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.

Base station

Not available

Not available

Latency

1 of 2 differ

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

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Gaming Mode with Snapdragon Sound sources

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.

Not available

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.

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.

ABose QuietComfort Ultra Headphones (2nd Gen)

Not available

BBowers & 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.

Official licence

Not available

Not available

Battery and charging

5 of 13 differ

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

Not available

Not available

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

No2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Safety/regulatory pages: battery removed only by a qualified professional.

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.

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.

ABose QuietComfort Ultra Headphones (2nd Gen)

Connection	ANC	Spatial audio	Hours (h)
Bluetooth	Yes	No	30
Bluetooth	Yes	Yes	23
Bluetooth	No	No	45

Source1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Up to 30 hours (23 with Immersive Audio). 45 h with noise cancellation and immersive audio off is from the owner's guide2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Page 36: 30 h with ANC on and Immersive Audio off, 23 h with ANC and Immersive Audio on, 45 h with both off. Rows are stored with their Immersive Audio setting.

BBowers & 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.

Battery life (claimed, max)

45h=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)

45h=CalculatedFrom Claimed battery life

Not available

Charging port

USB-C1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Charging Interfaces: USB C PORT. The FAQ says USB audio uses the same connector.

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.

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

180min2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Allow up to 3 hours

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.

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

15min1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Product Comparison, Quick Charge: 15 min = 3 hrs. Immersive Audio conditions are separately qualified in the manual.

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.

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

3h1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Comparison table: 15 min = 3 hrs. The owner's guide test note gives 2.5 hours2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Page 36: main text promises up to 3 h from 15 min. Test footnote mentions older 2.5 h, inconsistent. Current product comparison also explicitly states 3 h.

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.

Use while charging

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026FAQ Can I charge while wearing: yes, from a USB-C powered source. It may charge slower during use. Features list listening 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.

Charging dock or stand

Not available

Not available

Controls

3 of 6 differ

Controls

Buttons, Touch1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026FAQ controls: Bluetooth and power button, multifunction button and capacitive volume and shortcut strip on the right cup.

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.

Volume control

Touch1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Capacitive volume strip on the right earcup

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.

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.

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Touch and hold the volume strip for a user-configurable shortcut

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.

Wear detection

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026On-head/off-head 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.

Voice assistant

Siri, Google Assistant, Bixby1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Device voice assistants, such as Siri, Google, and Bixby

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.

Comfort and build

3 of 11 differ

Headband type

Padded14Reviewtechgearlab.com/reviews/audio/wireless-headphones/bose-quietcomfort-ultra-2nd-gen-headphonesRead 30 September 2026Comfort section: similar padding on headband cushions top of head.

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.

Headband material

Pleather1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Pleather Headband, Metallic Polished Yokes

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.

Frame material

Not available

Not available

Ear cup material

Not available

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.

Ear pad material

Protein leather1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Technical Specifications, Ear Cushion Material: Protein Leather.

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.

Replaceable ear pads

Yes1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Ear Cushion Style/Fit: Removable Cushion. Replacement parts via Bose customer service

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.

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

Not available

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

Not available

Software

2 of 3 differ

Companion app

Bose app1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Bose app named in Technical Specifications and Support download links for Google Play and Apple Store.

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

App platforms

Android, iOS1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Bose app named in Technical Specifications and Support download links for Google Play and Apple Store.

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

User firmware updates

Yes2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Updates through the Bose app or btu.Bose.com

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.

Dimensions and weight

1 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.

264.4g(9.3 oz)1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Unpackaged headphone 0.583 lb, converted

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).

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

Not available

Certifications

1 of 3 differ

Hi-Res Audio

Not available

Not available

Communication certifications

Not available

Not available

FCC ID

A944439872Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026FCC ID: A94443987 | IC: 3232A-443987

Not available

Other certifications

Not available

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.

In the box

2 of 3 differ

In the box

Bose QuietComfort Ultra Headphones (2nd Gen), Carry case, 3.5 mm to 2.5 mm audio cable, USB-C (C to C) cable (39"), Safety sheet1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026What’s in the Box: headphones, carry case, 3.5 mm to 2.5 mm audio cable, USB-C C to C 39 inch cable, safety sheet.

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.

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

ABose QuietComfort Ultra Headphones (2nd Gen)

Type	Length (m)	Count
USB-C to USB-C	0.99	1
3.5 mm to 2.5 mm audio cable	Not available	1

Source1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026USB-C (C to C) cable 39 inches, converted

BBowers & 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.

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

Hard4Reviewwhathifi.com/headphones/wireless-headphones/sony-wh-1000xm6-vs-bose-quietcomfort-ultra-headphones-2nd-gen-which-flagship-wireless-over-ears-are-bestRead 30 September 2026Compact hard-shell carry 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.

Links

Not compared

Product page

www.bose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.html1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026Product title QuietComfort Ultra Headphones (2nd Gen), family QuietComfort. Exact second generation 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

Spec sheet

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Manual

assets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdf2Owner's manualassets.bosecreative.com/m/25e14a61f0feef02/original/897194_OG_QCUH2-HEADPHONEARN_EN.pdfRead 30 September 2026Owner’s Guide cover QuietComfort Ultra Headphones (2nd Gen), document 897194. Public complete PDF opened.

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.

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

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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.

1year1Maker product pagebose.com/p/headphones/bose-quietcomfort-ultra-headphones-2nd-gen/QCUH2-HEADPHONEARN.htmlRead 30 September 2026US: Bose 1-Year Limited Warranty

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