Earbuds / Compare

Bose QuietComfort Ultra Earbuds (2nd Gen) vs Bowers & Wilkins Pi8

A

Product A: Bose

QuietComfort Ultra Earbuds (2nd Gen)

90 of 166 known

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B

Product B: Bowers & Wilkins

Pi8

75 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ABose QuietComfort Ultra Earbuds (2nd Gen)

BBowers & Wilkins Pi8

General

5 of 8 differ

Series

QuietComfort1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Exact product heading establishes the QuietComfort family.

Pi1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026The page lists the Pi6 as archived in its comparison. The Pi8 is the current Pi flagship.

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

444965, 408L, 408R, 896637-0010, 896637-00304Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Manual regulatory section: charging case model 444965, earbud models 408L and 408R.14Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-black.htmlRead 7 October 2026Exact second-generation Black product heading and manufacturer SKU 896637-0010. Regulatory case and earbud model numbers remain separately retained.15Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-deep-plum.htmlRead 7 October 2026Exact second-generation Deep Plum product heading and manufacturer SKU 896637-0030. Regulatory case and earbud model numbers remain separately retained.

300965-54-00-309, 300965-58-00-309, 300965-57-00-309, 300965-40-00-309, 300965-77-00-309, 300965-78-00-3091Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026US store finishes. The page default finish Midnight Blue is 300965-40-00-309. The store variation data gives Anthracite Black -54, Dove White -58, Jade Green -57, Dark Burgundy -77 and Pale Mauve -78, each ending -00-309.

GTIN / EAN

017817861120, 01781786115114Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-black.htmlRead 7 October 2026Specifications Barcode (GTIN): 017817861120, exact Black SKU 896637-0010. No barcode inferred for other colours.15Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-deep-plum.htmlRead 7 October 2026Specifications Barcode (GTIN): 017817861151, exact Deep Plum SKU 896637-0030. No barcode inferred for other colours.

Not available

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

12 June 20258Press releasebose.com/pressroom/bose-announces-the-quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Dated manufacturer announcement: June 12, 2025.

21 August 20245Press releasewifihifi.com/bowers-wilkins-launch-all-new-true-wireless-earbudsRead 15 October 2026Launch release as reprinted by WiFi HiFi. Engadget published it on 21 August 2024 and Notebookcheck reported it the same day.

Status

Available1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Selectable color, USD price and Add to Cart establish available status.

Available1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026The US store lists the Pi8 at 499 USD, above the 399 USD launch price. Every finish showed Out of Stock on 2026-10-15 and the page offers a back-in-stock sign-up. Retailers still list it and the maker has named no successor, so the status stays available.

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 Earbuds8Press releasebose.com/pressroom/bose-announces-the-quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Like its predecessor, the QC Ultra Earbuds feature Bose's proprietary CustomTune sound calibration technology.

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.

$2998Press releasebose.com/pressroom/bose-announces-the-quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Opening availability paragraph: $299 original launch price.

$3995Press releasewifihifi.com/bowers-wilkins-launch-all-new-true-wireless-earbudsRead 15 October 2026Release: available from today at 399 USD, 499 CAD. Tax treatment is not stated. The current US store price of 499 USD is not the launch price.

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

Not available

Not available

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

US, GB, DE, AU1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 20262Maker product pagebose.de/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 20263Maker product pagebose.co.uk/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 2026Listed at £299.9514Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-black.htmlRead 7 October 2026Exact AU retailer offers this SKU with an AUD price and Add to cart.15Retailer pageharveynorman.com.au/bose-quietcomfort-ultra-earbuds-2nd-gen-deep-plum.htmlRead 7 October 2026Exact AU retailer offers this SKU with an AUD price and Add to cart.

Not available

ColoursiThe maker's own colour names

Black, White Smoke, Deep Plum, Midnight Violet, Desert Gold1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Five colour swatches on the US page, Deep Plum selected

Anthracite Black, Dove White, Jade Green, Midnight Blue, Dark Burgundy, Pale Mauve1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Six finishes on the US store. The launch release named four of them. Dark Burgundy and Pale Mauve were added later.

Segment

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Design

2 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

In-ear1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical Specifications: Headphone Fit In-ear.

In-ear2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual section 7: Pi8 are designed to seal the ear canal.

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

Stem9Reviewtechradar.com/audio/earbuds-airpods/bose-quietcomfort-ultra-earbuds-2nd-gen-reviewRead 30 September 2026Features section explicitly describes swiping/stroking the stem to change volume. Short external control stalk.

Stemless2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual Diagram 1 and the maker photos show a compact body without a stalk. TechRadar describes a concha-fit design.

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

Either bud1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Either the left or right earbud can be used alone

Not available

RGB lighting

Not available

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Drivers and sound

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

ABose QuietComfort Ultra Earbuds (2nd Gen)

Type	Count per earbud
Dynamic	1

Source10Reviewgalaxus.nl/en/page/bose-quietcomfort-ultra-earbuds-2nd-gen-what-bose-improves-and-what-it-doesnt-39335Read 7 October 2026Exact second-generation hands-on review states a conventional dynamic driver per side. One audio transducer per bud. Diameter is omitted because this source gives 9.3 mm while the TechRadar exact review gives 10 mm and Bose publishes neither. No acoustic-role label inferred.

BBowers & Wilkins Pi8

Type	Diameter (mm)	Count per earbud
Dynamic	12	1

Source1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Drive Units: 12mm Carbon Cone. The comparison table says 2 x 12mm Carbon Cone for the pair, so one driver per earbud.

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

Dynamic10Reviewgalaxus.nl/en/page/bose-quietcomfort-ultra-earbuds-2nd-gen-what-bose-improves-and-what-it-doesnt-39335Read 7 October 2026Review explicitly states conventional dynamic driver. Manufacturer does not publish the transducer technology.

Dynamic4Reviewstuff.tv/review/bowers-wilkins-pi8-reviewRead 15 October 2026Review: a single 12mm dynamic unit with the same sort of carbon cone as the Px8. The maker says Carbon Cone drive unit.

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

Not available

12mm=CalculatedFrom Drivers per bud

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

1=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Carbon Cone1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Maker name for the diaphragm technology. The page does not give the exact material.

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

Not available

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Impedance

Not available

Not available

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

Not available

Not available

Sensitivity reference

Not available

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

Not available

96kHz4Reviewstuff.tv/review/bowers-wilkins-pi8-reviewRead 15 October 2026Review: aptX Adaptive for 24/96 playback. The launch release says the same. A compatible source is needed and the case retransmits in aptX Adaptive up to 24-bit/96kHz.

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

Not available

24bits2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Specifications: True 24-bit audio connection. The codec is not named there. The launch release gives aptX Adaptive at 24-bit/96kHz. aptX Lossless itself is a 16-bit lossless mode.

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

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Personalised soundiA profile from a hearing test or ear scan

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026CustomTune FAQ describes an acoustic calibration tone at each power-on while worn. Reflected sound measures the unique ear and ear canal shape and adjusts playback. An ear-acoustic scan, not a hearing assessment.

Not available

Onboard EQ

Not available

Not available

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

34Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Battery test footnotes use a 3-band EQ set to zero

51Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification: 5-band customisable EQ plus TrueSound mode.

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

Bass Boost, Bass Reducer, Treble Boost, Treble Reducer11Reviewsoundguys.com/what-do-the-bose-quietcomfort-ultra-earbuds-2nd-gens-eq-presets-sound-like-140870Read 7 October 2026Exact second-generation EQ comparison names these four Bose app sound presets as section headings. Default and Custom poll choices are not extra named presets. Listening modes are separate.

Not available

Volume limit

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Spatial audio

2 of 2 differ

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

Bose Immersive Audio1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Exact-model FAQ listening modes include Immersion (full noise cancellation with Immersive Audio).

Not available

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

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Immersive Audio Motion and Still settings: Still keeps the virtual speakers in place when you move your head

No9Measurementsoundguys.com/bowers-wilkins-pi8-review-124027Read 15 October 2026Review cons: no spatial audio or head tracking features. TechRadar also says there is no proprietary spatial audio processing.

Noise cancelling

4 of 11 differ

Active noise cancelling

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Exact-model FAQ listening modes include Quiet (full noise cancellation).

Yes1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026

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

Hybrid1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026ANC FAQ: cancellation uses microphones both inside and outside the earbuds.

Not available

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

Not available

Not available

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

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026FAQ: ActiveSense adapts cancellation in Aware Mode. CustomTune calibrates audio and cancellation at power-on.

Yes1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Page: noise cancellation that automatically adapts to your surroundings. TechRadar says there is no adaptive ANC option and no way to tweak the ANC level. The maker wins, but the adaptive behaviour is not user-visible.

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

Not available

Not available

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

Not available

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Transparency mode

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Exact-model FAQ listening modes include Aware (full audio transparency).

Yes2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 2.4: ambient Pass-Through mode lets in some external sound.

Adjustable transparency

Yes10Reviewgalaxus.nl/en/page/bose-quietcomfort-ultra-earbuds-2nd-gen-what-bose-improves-and-what-it-doesnt-39335Read 7 October 2026Review explicitly describes adjusting ANC and transparency levels in the Bose app. Not an automatically selected activity profile.

No4Reviewstuff.tv/review/bowers-wilkins-pi8-reviewRead 15 October 2026Review: noise cancelling is a basic toggle with no way to adjust the level of passthrough.

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Aware Mode/ActiveSense automatically adjusts cancellation to loud external noise while allowing surroundings.

Not available

Conversation detection

Not available

Not available

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026SpeechClarity FAQ explicitly filters surroundings and wind for phone and video calls. AI voice-pickup processing, not a dedicated user-selectable ANC wind mode.

Not available

Measured

7 of 23 differ

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

Warm sound signature7Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Sound signature: Warm

Warm sound signature with emphasised bass. SoundGuys measured the Pi8 on firmware 1.0.16.18 against its own preference curve. Bass runs about 5 dB above the target from 20 to 50 Hz, the response peaks about 9 dB above the target at 3.15 kHz and sits about 14 dB below the target at 20 kHz. These are local peaks, not regional averages.9Measurementsoundguys.com/bowers-wilkins-pi8-review-124027Read 15 October 2026SoundGuys lab response table for the Pi8 on the SoundGuys Headphone Preference Curve, measured on a B&K 5128 fixture per its How We Test method. Values read from the product page lab data. SoundGuys lists the signature as warm and says the Pi8 have more bass emphasis than expected.

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

5dB7Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Very Emphasized (5 dB), test bench 2.3

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

0dB7Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Balanced (0 dB), test bench 2.3

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Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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Consistency between fittings (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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

Not available

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

Not available

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

Not available

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Noise isolation, best (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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

Not available

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

Speech sounds clean and natural. Higher voices can lack airiness. Background-noise rejection is adequate but sustained loud sounds such as an arriving subway remain difficult.7Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Public Microphone usage assessment, test bench 2.3 on Deep Plum second-generation unit. Qualitative recording and noise-handling results. Exact firmware and microphone test settings are not stated in the free summary. Numeric frequency extension and noise-handling results remain member-locked and are not imported.

Voices are reproduced accurately in SoundGuys recordings. Background noise rejection is not exceptional, so some environmental noise leaks through, but each voice stays intelligible. The recordings cover ideal, office, street, windy and reverberant conditions.9Measurementsoundguys.com/bowers-wilkins-pi8-review-124027Read 15 October 2026SoundGuys microphone demonstrations in ideal, office, street, windy and reverberant conditions. The review text says the microphones work well in a variety of environments but background noise rejection is not exceptional. No numeric result is stored.

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

Not available

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

Not available

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

Not available

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

Not available

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

Not available

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

Not available

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

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

ABose QuietComfort Ultra Earbuds (2nd Gen)

ANC	Hours (h)
Yes	5.57
Not available	6.5

Source5Reviewsoundguys.com/bose-quietcomfort-ultra-earbuds-2nd-gen-review-140812Read 30 September 20265.57 h row: 5 h 34 min (334 min), ANC on, music peaking at 75 dB, firmware 4.9.146Measurementsoundguys.com/how-good-is-the-bose-quietcomfort-ultra-earbuds-2nd-gens-battery-life-141004Read 30 September 20265 h 34 min with ANC enabled, sample track peaking at 75 dB7Measurementrtings.com/headphones/reviews/bose/quietcomfort-ultra-earbuds-2nd-genRead 7 October 20266.5 h row: 6.5 hours of continuous playback in the usage summary. ANC state not stated in the free text. Full measurements are members only and were not read

BBowers & Wilkins Pi8

ANC	Hours (h)
Yes	5.17
No	8.5

Source6Reviewtechradar.com/audio/earbuds-airpods/bowers-and-wilkins-pi8-reviewRead 15 October 2026Review: closer to 8.5 hours from a single charge with ANC off in the reviewer's testing. Codec, volume and source are not stated, so the figure is approximate. The maker claim of 6.5 hours is with ANC on.9Measurementsoundguys.com/bowers-wilkins-pi8-review-124027Read 15 October 20265 h 10 min with ANC on, stored as 31/6 hours. SoundGuys uses music peaking at 75 dB SPL, firmware 1.0.16.18 and app 2.7.1, tested over two weeks on a unit supplied by the maker. Codec is not stated. This is earbud-only runtime and is below the 6.5 hour maker claim. The ANC off row is from TechRadar and is approximate.

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

6.5h=CalculatedFrom Battery life (measured)

8.5h=CalculatedFrom Battery life (measured)

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

Not available

Not available

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

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

7.09g(0.3 oz)16Measurementtechgearlab.com/reviews/audio/wireless-earbuds/bose-quietcomfort-ultra-gen-2-earbudsRead 7 October 2026Exact Gen 2 review Specifications: Measured Weight 7.09 g (0.25 oz). The public table tooltip explicitly defines wireless earbuds as the weight of a single earbud. Ear-tip size and weighing instrument are not specified. This reviewer mass is separate from conflicting maker nominal masses.

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Microphones and calls

6 of 7 differ

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

88Press releasebose.com/pressroom/bose-announces-the-quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Launch voice-pickup paragraph explicitly combines the eight earbud microphones with AI noise suppression, dynamic mixing and adaptive filters for clearer calls. Pair total, including shared ANC microphones used for voice. Excludes the separate vibration sensors and case hardware.

42Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual section 7: each earbud contains two microphones for picking up your voice during calls. Stored as 4 across the pair. The third microphone per earbud in the specification is for ANC.

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

88Press releasebose.com/pressroom/bose-announces-the-quietcomfort-ultra-earbuds-2nd-genRead 7 October 2026Voice pickup section: eight microphones in the earbuds.

61Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Microphones: 3 per earbud for telephony and ANC. Stored as 6 across the pair.

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

Yes5Reviewsoundguys.com/bose-quietcomfort-ultra-earbuds-2nd-gen-review-140812Read 30 September 2026Bone conduction pickup enabled by the August 2025 firmware update

Not available

Mic noise reduction

AI1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026AI-based background noise suppression (SpeechClarity)

Not available

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

Not available

Not available

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

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Tap an earbud to mute or unmute during a call

Not available

SidetoneiHear your own voice in calls

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Self voice during calls, adjustable in the app

No6Reviewtechradar.com/audio/earbuds-airpods/bowers-and-wilkins-pi8-reviewRead 15 October 2026Review: the lack of sidetone-type tech to boost or minimise your own or the caller's voice.

Connectivity

6 of 18 differ

Chip

Not available

Qualcomm QCC51817Reviewtomsguide.com/audio/earbuds/bowers-and-wilkins-pi8-review-comfy-fit-incredible-soundRead 15 October 2026Review: QCC5181 chipset alongside a discrete DAC and amp combo. The maker and other reviewers say only a latest-generation Qualcomm chipset. Only Tom's Guide names the part.

Connections

Bluetooth1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical Specifications list Bluetooth 5.3 and Bluetooth audio profiles.

Bluetooth2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026

Bluetooth

5.31Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical Specifications: Bluetooth 5.3.

5.41Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification: Bluetooth 5.4 with aptX Lossless technology.

Bluetooth codecs

SBC, AAC, aptX Adaptive4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026aptX Adaptive with Snapdragon Sound devices5Reviewsoundguys.com/bose-quietcomfort-ultra-earbuds-2nd-gen-review-140812Read 30 September 2026SBC, AAC and aptX Adaptive family

aptX Lossless, aptX Adaptive, aptX, AAC, SBC1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026

Bluetooth profiles

A2DP, HFP1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical Specifications: A2DP Bluetooth Audio Streaming and HFP Bluetooth.

A2DP v1.3.2, AVRCP v1.6.2, HFP v1.8, HSP v1.2, BLE GATT2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Specifications: A2DP v1.3.2, AVRCP v1.6.2, HFP v1.8, HSP v1.2 and BLE GATT.

LE Audio

No12Maker product pagesupport.bose.com/article/quietcomfort-ultra-earbuds-gen-2-specificationsRead 7 October 2026Bluetooth footnote explicitly says the earbuds do not receive content over LE Audio. BLE is used for app communication and control. Does not inherit the later over-ear headphones LE Audio update.

No2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026No LE Audio profile is listed in the specifications. Stuff says there is no LC3 or Bluetooth LE audio on board.

Auracast

Not available

Not available

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

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Bluetooth connections: actively connected up to two devices at a time, explicitly multi-point. (PDF page 44)

Yes1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification: Multipoint connectivity. The manual says two devices at once.

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

24Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Bluetooth connections: actively connected up to two devices at a time, explicitly multi-point. (PDF page 44)

22Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 5.3: Pi8 supports multipoint and can be connected to two devices simultaneously. Only one device at a time can play audio or make calls.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

Paired devices rememberediMaximum remembered Bluetooth source pairings. This is separate from simultaneous multipoint connections.

64Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Up to six devices in the device list, two active at once

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Google Fast Pair4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Android devices: Connect using Fast Pair via Google Play Services. (PDF page 48)

Google Fast Pair2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 5.1.2: Android devices running Marshmallow 6.0 or later that support the Google Fast Pair Service pair through a pop-up.

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

9m2Maker product pagebose.de/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 2026Bluetooth-Reichweite 9 m4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026

10m8Reviewwhathifi.com/reviews/bowers-and-wilkins-pi8Read 15 October 2026Review: transmission between the earbuds has been reworked, including an increase in range to 10m through a new antenna. This is the maker claim as relayed by the reviewer. The reviewer saw two dropouts in testing.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

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

Not available

Not available

Latency

1 of 3 differ

Low latency mode

Yes12Maker product pagesupport.bose.com/article/quietcomfort-ultra-earbuds-gen-2-specificationsRead 7 October 2026aptX Adaptive footnote explicitly names low latency mode, also called Gaming Mode. Maker launch release restricts automatic low-latency aptX Adaptive processing to Snapdragon Sound-certified source devices. It adapts to wireless conditions. No fixed latency or exposed app toggle is claimed.

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

3 of 4 differ

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

Android, iOS1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Support page for the exact product: Bose app available on Google Play and the Apple Store, so Android and iOS are supported.

iOS, Android, Windows, macOS2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 5.1: iPhone, Android and Mac or PC pairing. The note on Windows 10 describes the Stereo and Hands-Free profiles. Section 8 covers streaming from a Mac over USB.

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

Not available

Not available

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

ABose QuietComfort Ultra Earbuds (2nd Gen)

Feature	Needs
Fast Pair	Android device running Android 6.0 or higher
Snapdragon Sound	Snapdragon Sound-certified device, such as a compatible Android device
SimpleSync	Bose Smart Speaker or Bose Smart Soundbar

Source4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Fast Pair Android 6.0 or higher. (PDF page 48)

BBowers & Wilkins Pi8

Feature	Needs
Google Fast Pair	Android device running Marshmallow 6.0 or later that supports the Google Fast Pair Service.
Audio retransmission from the charging case	Connect an analogue or USB source to the case with the supplied 3.5 mm or USB-C cable. The case only sends the source audio to the earbuds. Earbud microphone signals are not sent back to the case.

Source2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026

Official licence

Not available

Made for iPhone2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Specifications: Apple MFi Made For iPhone support.

Battery and charging

9 of 13 differ

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

Not available

Not available

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

Not available

Not available

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

ABose QuietComfort Ultra Earbuds (2nd Gen)

Mode	Spatial audio	Includes case recharges	Hours (h)
ANC on	No	No	6
ANC on	Yes	No	4
Call	Not available	No	4

Source17Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 8 October 2026The exact manufacturer guide on printed page 41 gives up to 6 hours with Bose Immersive Audio Off and up to 4 hours with it On after a full charge. Both music rows use Quiet Mode with full active noise cancellation, Bluetooth A2DP streaming at 75 dB SPL playback loudness, and all three equalizer bands at zero. Manufacturer testing used production-representative units in January 2025 with IEC 60268-1 pink noise. The Bluetooth codec and Immersive Still/Motion setting are unspecified, so neither is inferred. These are manufacturer claims, not independent reviewer measurements. Both music rows are the earbuds alone from one charge. The case provides three additional full recharge cycles, but a total hour figure is not calculated. The call row has its own source below.18Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 8 October 2026The exact second-generation maker technical specification states Maximum Talk Time 4 hours. This supports only the unchanged call row. Its ANC, codec, volume, and spatial-processing test settings are not inferred from music-playback conditions.

BBowers & Wilkins Pi8

Mode	Includes case recharges	Hours (h)
ANC on	No	6.5
ANC on	Yes	20

Source1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification: up to 6.5 hours for earbuds with ANC on, plus 13.5 hours from the charging case. The 20 hour total is stated in the manual and the launch release says all figures are quoted with ANC on. Codec, volume and spatial settings are not stated. The information sheet footnote says pre-production hardware was tested with a smartphone.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

6h=CalculatedFrom Claimed battery life

6.5h=CalculatedFrom Claimed battery life

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

6h=CalculatedFrom Claimed battery life

6.5h=CalculatedFrom Claimed battery life

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

Not available

Not available

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

Not available

20h=CalculatedFrom Claimed battery life

Total with case and ANC (claimed)iClaimed total playback with ANC, including the initial earbud charge and case recharges.

Not available

20h=CalculatedFrom Claimed battery life

Talk time (claimed)

4h=CalculatedFrom Claimed battery life

Not available

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

120min1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 20264Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Earbuds up to 2 hours

Not available

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

Not available

The specification lists charge time as 2 hours and does not name the earbuds or the case. The manual says to allow up to 3 hours to fully charge.2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Specifications: Charge time = 2 hours. Manual section 4: allow up to 3 hours to fully charge.

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

20min1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 20264Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 202620-minute charge gives up to 2 hours

15min1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification: 15-minute charge = 2 hours playback.

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

2h4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Charging Time notes: 20 minute charge powers earbuds up to 2 h. Full ANC, Quiet Mode, Immersive Audio off, 75 dB SPL footnote. (PDF page 41)

2h1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Same row. ANC, codec and volume conditions are not stated.

Charging case

2 of 10 differ

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

Not available

Not available

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

Not available

Not available

Case charging port

USB-C1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical specifications: Charging Interface USB C PORT.

USB-C2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 4: USB-C socket on the charging case.

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

180min4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Charging case up to 3 hours

Not available

Wireless charging

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Manual page 38: Charge wirelessly using a compatible third-party wireless charger.

Yes1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Wireless Charging Support: Yes.

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

Qi5Reviewsoundguys.com/bose-quietcomfort-ultra-earbuds-2nd-gen-review-140812Read 30 September 2026Any Qi-compatible charging pad

Qi4Reviewstuff.tv/review/bowers-wilkins-pi8-reviewRead 15 October 2026Review: the case can be topped up wirelessly on a Qi pad. The maker names no standard.

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Not available

Not available

Screen on case

Not available

Not available

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

Not available

Yes2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual section 8: the case retransmits audio from a 3.5 mm analogue or USB source to the earbuds.

Controls

4 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Touch, Swipe4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Touch Control: tap and swipe. (PDF page 24)

Touch2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 2.2: touch-sensitive multi-function button area on the top face of each earbud.

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Swipe4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Touch Control: swipe up or down for volume. (PDF page 24)

Touch6Reviewtechradar.com/audio/earbuds-airpods/bowers-and-wilkins-pi8-reviewRead 15 October 2026Review: on-ear volume control by tap and hold on either earbud, left down and right up. It replaces the noise mode and voice assistant gestures.

Gestures

Tap, Double-tap, Triple-tap, Touch and hold, Swipe up, Swipe down4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Touch Control: tap and swipe, swipe up or down for volume. (PDF page 24)

Single tap: play or pause, answer call, Double tap: next track, Triple tap: previous track, Double tap and hold: end call, Touch and hold left earbud for 1 second: switch noise cancelling and pass-through, Touch and hold right earbud for 1 second: voice assistant, Touch and hold either earbud: volume, left down and right up, when set in the app2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual Diagram 2 symbols for the taps and Quick Start Guide: hold the left earbud for noise cancelling and pass-through, the right earbud for voice assistant. The double tap and hold symbol is read as end call from the red phone icon. Volume on tap and hold is from TechRadar.

Remappable controls

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Change or disable shortcut, assign different shortcuts to each bud in the Bose app. (PDF page 28)

Yes2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 2.3: the app can customise the multi-function button behaviour.

Voice assistant

Siri, Google Assistant13Maker product pagebose.co.uk/stories/how-to-control-bose-wireless-earbudsRead 7 October 2026Maker names Siri and Google Assistant as phone voice assistants. The exact QuietComfort Ultra Earbuds (2nd Gen) row instructs assigning press-and-hold to launch that connected phone assistant. Requires a supported source device and Bose app shortcut configuration. No independent always-listening earbud assistant is claimed.

Not available

Sensors and health

2 of 9 differ

In-ear detection

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026In-ear Detection automatic play/pause on removing or reinserting. (PDF page 29)

Yes2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 2.5: wear sensors in both earbuds pause audio when an earbud is removed. They can be switched off in the app.

Sensors

Not available

Not available

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

No6Reviewtechradar.com/audio/earbuds-airpods/bowers-and-wilkins-pi8-reviewRead 15 October 2026Review: there are no hearing tests for creating personalised sound profiles.

Hearing protectioniLimits sudden loud sounds

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026ActiveSense applies noise cancellation to very loud sudden sounds in Aware Mode

Not available

Health features

Not available

Not available

Fit and durability

4 of 7 differ

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

S, M, L1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026What's in the box, exact 2nd Gen: three eartip pairs S/M/L.

XS, S, M, L1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Accessories: Extra Small / Small / Medium / Large ear tips. The manual says medium tips are pre-fitted.

Ear tip materials

Silicone1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Silicone eartips

Silicone8Reviewwhathifi.com/reviews/bowers-and-wilkins-pi8Read 15 October 2026Review: four different sizes of silicone eartip in the box. TechRadar also says silicone.

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

Stability bands1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Stability bands in sizes 1, 2, 3

Not available

Ear tip fit test

Yes1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Earbud Seal Test in the Bose app

No6Reviewtechradar.com/audio/earbuds-airpods/bowers-and-wilkins-pi8-reviewRead 15 October 2026Review: there are no ear-tip fit tests. What Hi-Fi? says the app has no eartip fit test.

Dust and water rating, buds

IPX41Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Technical Specifications: Water Resistant IPX4.

IP541Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Water Resistance: IP54 (earbuds).

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

2 of 6 differ

Companion app

Bose app1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Support page for the exact product names the Bose app.

Bowers & Wilkins Music1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Page: Bowers & Wilkins Music app for setup and control.

App platforms

Android, iOS1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Support page for the exact product: Bose app available on Google Play and the Apple Store.

iOS, Android2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 6: the app is free on iOS and Android.

User firmware updates

Yes4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Bose app setup enables future updates and new features. (PDF page 13)

Yes2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual 6.2: software updates through the app.

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

4 of 4 differ

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

Not available

7g(0.2 oz)1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Weight: Earbuds 7g (each).

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

Width12.4Height30Depth24.9mm(0.5 × 1.2 × 1 in)2Maker product pagebose.de/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 2026Einzelner Earbud 3.0 cm H x 1.24 cm W x 2.49 cm D

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

60g(2.1 oz)12Maker product pagesupport.bose.com/article/quietcomfort-ultra-earbuds-gen-2-specificationsRead 7 October 2026Physical Specifications gives Case: 0.06 kg, approximately 60 g, separately from One earbud. Maker product page independently lists Case 0.132 lb, consistent with about 60 g after rounding. Empty charging case, not case plus earbuds.

46g(1.6 oz)1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Weight: Charging case 46g. Earbuds are not included.

Case dimensionsiCharging-case width, height and depth on explicitly identified source axes. Report conflicting axis labels rather than reorder a tuple by appearance.

Width59.7Height66Depth26.9mm(2.4 × 2.6 × 1.1 in)2Maker product pagebose.de/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 2026Etui 6.6 cm H x 5.97 cm W x 2.69 cm D

Width65Height52Depth29mm(2.6 × 2 × 1.1 in)1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Specification Dimensions (Charging Case): 65 mm (w) x 29 mm (d) x 52 mm (h). The axes are labelled in the source.

Certifications

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

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Communication certifications

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FCC IDs

A94408L, A94408R4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026FCC ID: A94408L / A94408R, IC: 3232A-408L / 3232A-408R

Not available

Other certifications

Snapdragon Sound3Maker product pagebose.co.uk/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 30 September 2026Wireless Connectivity lists Snapdragon Sound4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Features Snapdragon Sound technology

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In the box

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In the box

2 Bose QuietComfort Ultra Earbuds (2nd Gen), 3 pairs of eartips (S, M, L), 3 pairs of stability bands (1, 2, 3), Wireless charging case, 12" USB-C® (A to C) cable, Safety sheet1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026What's in the box, exact 2nd Gen: 2 buds, three eartip pairs S/M/L, three stability bands 1/2/3, wireless case, 12 inch USB-A to C cable, safety sheet.

Pi8 earbuds with medium ear tips, Extra small ear tips x2, Small ear tips x2, Large ear tips x2, Charging case, USB-C charging cable, USB-C to 3.5 mm audio cable, Literature pack with Quick Start Guide and Safety and Warranty2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026Manual section 1 carton contents, with the Quick Start Guide and Safety and Warranty literature pack.

Cables included

ABose QuietComfort Ultra Earbuds (2nd Gen)

Type	Length (m)	Count
USB-C (A to C)	0.3048	1

Source1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 202612 inch cable, converted exactly to 0.3048 m

BBowers & Wilkins Pi8

Type	Length (m)	Count
USB-C to USB-C charging cable	0.6	1
3.5 mm jack to USB-C audio cable	0.8	1

Source1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Accessories: 60 cm USB-C to USB-C charging cable and 80 cm 3.5 mm jack to USB-C audio cable. Lengths are the published nominal figures.

Links

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Product page

www.bose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.html1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026Exact product heading identifies the maker product URL.

www.bowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.html1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026

Spec sheet

support.bose.com/article/quietcomfort-ultra-earbuds-gen-2-specifications12Maker product pagesupport.bose.com/article/quietcomfort-ultra-earbuds-gen-2-specificationsRead 7 October 2026Exact model support Specifications page. Readable public indexed text. Direct HTTP yields a support-shell page.

www.bowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw68d0bd69/downloads/ENGLISH-B&W-Pi8-Information-Sheet.pdf3Maker spec sheet (PDF)bowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw68d0bd69/downloads/ENGLISH-B&W-Pi8-Information-Sheet.pdfRead 15 October 2026Two page English Technical Information sheet. It repeats the manual specifications for features, codecs, microphones, drive units, battery, water resistance, accessories, case dimensions and weights. Its battery footnote says testing used pre-production hardware and software paired with a smartphone.

Manual

assets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdf4Owner's manualassets.bosecreative.com/m/36b7ddda21b6edfd/original/898447_OG_QCUE2-HEADPHONEIN_EN.pdfRead 30 September 2026Owner guide cover identifies QUIETCOMFORT ULTRA EARBUDS (2ND GEN). (PDF page 1)

www.bowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdf2Owner's manualbowerswilkins.com/on/demandware.static/-/Library-Sites-bowers_northamerica_shared/default/dw1ab1096c/downloads/Pi8-Manual-v5_2025Dec11_GFP.pdfRead 15 October 2026English user manual, pages 2 to 8 of a 130 page multilingual PDF. Version file name Pi8-Manual-v5_2025Dec11_GFP.pdf.

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

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Warranty

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

1year1Maker product pagebose.com/p/earbuds/bose-quietcomfort-ultra-earbuds-2nd-gen/QCUE2-HEADPHONEIN.htmlRead 7 October 2026US: one-year Bose limited warranty

2years1Maker product pagebowerswilkins.com/en-us/product/wireless-earbuds/pi8/300965.htmlRead 15 October 2026Page: 2-year warranty valid from the date of purchase for select products. The US store is the market.

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