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

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

Better figure, where one is clearly better

QuietComfort Headphones compared with QuietComfort Ultra Earbuds (2nd Gen)
BoseQuietComfort HeadphonesBoseQuietComfort Ultra Earbuds (2nd Gen)
Overview
ReleasedSeptember 2023June 2025
Sound
TypeOver-earIn-ear
Noise cancellingYesYes
Transparency modeYesYes
Spatial audio with head tracking–Yes
Bluetooth codecsSBC and AACSBC, AAC and aptX Adaptive
Noise cancelling detailQuiet Mode (full noise cancelling) and Aware Mode (full transparency), plus custom modes with adjustable noise cancelling in the Bose app; Wind Block can be added to any mode; microphones inside and outside the ear cupsQuiet Mode (full noise cancelling) and Aware Mode with an updated ActiveSense that smooths sudden noise spikes; noise cancelling adjustable in the Bose app; CustomTune tailors sound and noise cancelling to your ears
Audio featuresTriPort acoustic structure; three-band EQ (bass, mid-range, treble) with presets in the Bose appBose 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; aptX Adaptive with Snapdragon Sound devices, which Bose says adapts to lossless audio and low latency
Battery
Listening time (maker's claim)Up to 24 hoursUp to 6 hours
With the case–Up to 24 hours
Wireless charging–Yes
Battery life detailUp to 24 hours with noise cancelling on, tested by Bose at 75 dB SPL; the headphones don't play while chargingUp to 4 hours per charge with Immersive Audio on; the case holds three full charges, for 24 hours in total with Immersive Audio off; tested by Bose at 75 dB SPL in Quiet Mode
Charging case–USB-C (5 V, 1 A) and wireless charging; 680 mAh output capacity; the case charges in up to 3 hours and the earbuds in up to 2 hours
Fast charging15 minutes gives up to 4 hours (Bose UK FAQ; Bose UK's comparison table says 2.5 hours); full charge in up to 2.5 hours (owner's guide and spec table; the FAQ says 2 hours)20 minutes in the case gives up to 2 hours of playback
Design
Weight236 g7.3 g (better)
Water and sweat resistance–IPX4
Bluetooth5.15.3
Two devices at onceYesYes
Headphone cableYes–
ControlsPhysical buttons on the back of the ear cups; on the right, a Power/Bluetooth switch, volume up and down and a multi-function button (play, pause, skip, calls); on the left, an Action button for modes, customisable as a shortcut to Spotify Tap or battery levelTouch surface on each earbud (tap to play, pause or answer calls; double-tap to skip forwards; triple-tap to skip back; swipe up or down for volume; touch and hold for a shortcut to modes, Immersive Audio settings, Spotify Tap or the voice assistant); touch controls can be turned off in the app; in-ear detection pauses audio when an earbud is taken out
MicrophonesBuilt-in microphones for calls; the audio cable has an in-line microphoneEight microphones in total; AI-based SpeechClarity noise suppression for calls
Fit and ear tipsAround-ear (circumaural) with removable protein leather cushions; steel in the headband; metal and plastic build; folds for the carry caseSilicone eartips in S, M and L (M fitted) with a guard against earwax build-up; stability bands in sizes 1, 2 and 3 (size 1 fitted)
Case weight–59.9 g (Bose lists 0.132 lb)
Water resistance detailNo water resistance rating publishedIPX4 for the earbuds only
Works withBose app (launched with Bose Music) for iOS and Android; multipoint connection to two devices; SimpleSync with Bose smart soundbars and speakers; Spotify TapBose app for iOS and Android; multipoint connection to two devices; Google Fast Pair on Android; Spotify Tap
ColoursBlack, White Smoke and limited-edition Cypress Green at launchBlack, White Smoke and Deep Plum at launch; Bose UK now also sells Midnight Violet and Desert Gold
In the boxHeadphones, carry case, 3.5 mm to 2.5 mm audio cable with microphone, USB-C (A to C) cable (30 cm), safety sheetEarbuds, wireless charging case, eartips (S, M, L), stability bands (1, 2, 3), 30 cm USB-C (A to C) cable, safety sheet

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