Bose Noise Cancelling Headphones 700 vs Bose QuietComfort Ultra Headphones (2nd Gen)

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

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Noise Cancelling Headphones 700 compared with QuietComfort Ultra Headphones (2nd Gen)
BoseNoise Cancelling Headphones 700BoseQuietComfort Ultra Headphones (2nd Gen)
Overview
ReleasedJune 2019September 2025
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Spatial audio with head tracking–Yes
BackClosed–
Bluetooth codecsSBC and AACSBC, AAC and aptX Adaptive
Lossless over USB-C–Yes
Noise cancelling detailAdjustable noise cancellation from full cancellation to full transparency; three customisable favourites on the Noise Control button; Conversation mode pauses audio and allows surroundings through; launch reviews describe 11 levelsQuiet 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 featuresActive equalisation; bass, mid-range and treble adjustment in the Bose app after updating the headphones; Self Voice adjusts how much of your own voice you hear during callsBose 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 20 hoursUp to 30 hours
Battery life detailUp to 20 hours per charge; USB-C charging; the headphones do not play audio or cancel noise while chargingUp 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 3.5 hours; full charge in up to 2.5 hours (current owner's guide)15 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
Bluetooth5.05.4
Two devices at onceYesYes
Headphone cableYesYes
ControlsTouch surface on the right earcup for playback, volume and calls; separate Power/Bluetooth, Noise Control and Voice Assistant buttons; hold Noise Control for one second for Conversation modeOn 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; six used for active noise cancellation, with two of those shared with two further microphones for four-microphone voice pickupFour microphones for calls, two on each ear cup
Fit and ear tipsAround-ear cushions; stainless-steel headband with sliding earcups; earcups rotate flat for the supplied 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
Dimensions254 g weight reported by What Hi-Fi and SoundGuys; an accessible current maker document does not give the headphone weight–
Water resistance detailNo IP rating verified in the maker documents used; owner's guide says not to use near water–
Works withBose app (originally Bose Music) for settings and updates; two active Bluetooth devices, one audio stream at a time, with eight stored pairings; SimpleSync with compatible Bose speakers and soundbars; Bluetooth 5.0 and SBC/AAC confirmed by SoundGuys; Google Assistant is not available on iOS according to Bose's current support article; launch Bose AR functionality is not treated as a current featureBose 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 Silver at launchBlack, 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, USB-C to USB-A cable, 3.5 mm to 2.5 mm audio cableHeadphones, 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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