Bose QuietComfort Ultra Headphones vs Bose QuietComfort Ultra Headphones (2nd Gen)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

QuietComfort Ultra Headphones compared with QuietComfort Ultra Headphones (2nd Gen)
BoseQuietComfort Ultra HeadphonesBoseQuietComfort Ultra Headphones (2nd Gen)
Overview
ReleasedOctober 2023September 2025
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Spatial audio with head trackingYesYes
Bluetooth codecsSBC, AAC and aptX AdaptiveSBC, AAC and aptX Adaptive
Lossless over USB-CNoYes
Noise cancelling detailEight microphones for feedback and adaptive feed-forward noise reduction; Quiet, Aware and Immersion modes plus custom modes; Aware Mode with ActiveSense briefly applies noise cancelling during very loud sounds; noise cancelling adjustable in the Bose app; Wind Block setting; CustomTune calibrates sound and noise cancelling to your ears each time you put them onQuiet Mode (full noise cancelling) and Aware Mode with ActiveSense, now smoother at damping sudden noise spikes; noise cancelling adjustable or fully off in the Bose app; CustomTune tailors sound and noise cancelling to your ears; wind block in custom modes
Audio featuresBose Immersive Audio (Still keeps the sound in place as you turn your head; Motion lets it follow) using an onboard IMU; three-band EQ (bass, mid-range, treble) in the Bose app; aptX Adaptive with Snapdragon Sound devicesBose Immersive Audio (Still keeps the virtual speakers in place as you turn your head; Motion lets them follow) and Cinema Mode; up to seven custom modes; adjustable EQ in the Bose app; lossless USB-C audio at 16-bit, 44.1 or 48 kHz; aptX Adaptive with Snapdragon Sound devices, which Bose says adapts to lossless audio and low latency; Gaming Mode
Battery
Listening time (maker's claim)Up to 24 hoursUp to 30 hours
Battery life detailUp to 24 hours with Immersive Audio off, 18 hours with it on; tested by Bose at 75 dB SPL in Quiet Mode; the headphones don't charge while switched onUp to 23 hours with Immersive Audio on; up to 45 hours with noise cancelling and Immersive Audio off; tested by Bose at 75 dB SPL; low-power standby when laid flat or put in the case; can be used while charging
Fast charging15 minutes gives up to 2.5 hours with Immersive Audio off, 2 hours with it on (owner's guide; Bose UK's FAQ says 3 hours); full charge in up to 3 hours15 minutes gives up to 3 hours with noise cancelling on and Immersive Audio off (Bose's test footnote gives 2.5 hours); full charge in up to 3 hours
Design
Weight254 g (better)264 g
Bluetooth5.35.4
Two devices at onceYesYes
Headphone cableYesYes
ControlsOn the right ear cup, a Bluetooth/power button, a multi-function button (play, pause, skip, calls, modes) and a capacitive volume strip (swipe for volume; touch and hold for a shortcut to Immersive Audio settings, Spotify Tap, the voice assistant or battery level); on-head detection pauses and resumes audio and wakes or sleeps the headphonesOn the right ear cup, a Bluetooth/power button, a multi-function button (play, pause, skip, calls and modes) and a capacitive volume strip (swipe for volume; touch and hold for a shortcut to Immersive Audio settings, Spotify Tap or the voice assistant); on-head detection pauses and resumes audio, answers calls and wakes the headphones
MicrophonesEight microphones in total; four are used for calls (two on each ear cup), in a beamforming arrayFour microphones for calls, two on each ear cup
Fit and ear tipsAround-ear (circumaural) with an adjustable headband; removable protein leather cushions; plastic, aluminium and protein leather; fold flat for the carry caseAround-ear (circumaural) with an adjustable headband; removable protein leather cushions; plastic and aluminium build with polished metal yokes; folds for the carry case
Water resistance detailNo water resistance rating published–
Works withBose app (launched with Bose Music) for iOS and Android; multipoint connection to two devices since a July 2024 update; Google Fast Pair; Spotify Tap; SimpleSync with Bose smart soundbars and speakers; 2.5 mm analogue input needs the headphones powered on; no USB audioBose app for iOS and Android; multipoint connection to two devices; Google Fast Pair; Spotify Tap; SimpleSync with a Bose Smart Soundbar or Bose Smart Speaker
ColoursBlack and White Smoke at launch; What Hi-Fi lists later Lunar Blue and Diamond 60th Edition finishesBlack, White Smoke, Driftwood Sand and Midnight Violet at launch; Bose UK now also sells Cherry Chocolate, Desert Gold and Olive Green
In the boxHeadphones, carry case, 3.5 mm to 2.5 mm audio cable, USB-C (A to C) cable (50.8 cm), safety sheetHeadphones, carry case, 3.5 mm to 2.5 mm audio cable, USB-C to USB-C cable (99 cm), safety sheet

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