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Bose QuietComfort Ultra Earbuds (2nd Gen) vs Bose QuietControl 30

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

Better figure, where one is clearly better

BoseQuietComfort Ultra Earbuds (2nd Gen)BoseQuietControl 30
Overview
ReleasedJune 2025September 2016
Sound
TypeIn-earIn-ear
Noise cancellingYesYes
Transparency modeYesYes
Spatial audio with head trackingYes–
Bluetooth codecsSBC, AAC and aptX Adaptive–
Noise cancelling detailQuiet 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 earsTwelve levels from maximum cancellation to maximum awareness, adjusted on the in-line remote or in Bose Connect; noise cancellation also works without music
Audio featuresBose 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 latencyVolume-optimised EQ adjusts the balance with listening level
Battery
Listening time (maker's claim)Up to 6 hoursUp to 10 hours
With the caseUp to 24 hours–
Wireless chargingYes–
Battery life detailUp 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 ModeBuilt-in lithium-ion battery charges through Micro-USB in up to three hours; Bose claims up to 10 hours per charge, and audio cannot play while charging
Charging caseUSB-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 charging20 minutes in the case gives up to 2 hours of playback–
Design
Weight (each earbud)7.3 g–
Water and sweat resistanceIPX4–
Bluetooth5.3–
Two devices at onceYesYes
ControlsTouch 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 outPower/Bluetooth button on the neckband; in-line volume, playback, call and noise-control buttons
MicrophonesEight microphones in total; AI-based SpeechClarity noise suppression for callsSix microphones across the earbuds for noise cancellation; a dual-microphone system supports calls
Fit and ear tipsSilicone 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)Contoured neckband and StayHear+ QC tips in small, medium and large
Case weight59.9 g (Bose lists 0.132 lb)–
Water resistance detailIPX4 for the earbuds only–
Works withBose app for iOS and Android; multipoint connection to two devices; Google Fast Pair on Android; Spotify TapBluetooth and NFC pairing; stores eight devices and can stay connected to two at once, playing from one at a time; Bose Connect app for iOS and Android
ColoursBlack, White Smoke and Deep Plum at launch; Bose UK now also sells Midnight Violet and Desert GoldBlack
In the boxEarbuds, wireless charging case, eartips (S, M, L), stability bands (1, 2, 3), 30 cm USB-C (A to C) cable, safety sheetHeadphones, three sizes of StayHear+ QC tips, USB charging cable and carrying case

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