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Bose QuietComfort 35 vs Bose QuietComfort Ultra Headphones

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

Better figure, where one is clearly better

BoseQuietComfort 35BoseQuietComfort Ultra Headphones
Overview
ReleasedJune 2016October 2023
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency mode–Yes
Spatial audio with head tracking–Yes
Bluetooth codecs–SBC, AAC and aptX Adaptive
Lossless over USB-C–No
BackClosed–
Noise cancelling detailNoise cancellation can run without audio; microphones inside and outside the earcups feed two Bose processing chipsEight 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 on
Audio featuresVolume-optimised EQ adjusts the balance with listening levelBose 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 devices
Battery
Listening time (maker's claim)Up to 20 hoursUp to 24 hours
Battery life detailUp to 20 hours over Bluetooth or 40 hours with the audio cable and power on; passive wired audio remains available when the battery is depletedUp 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 on
Fast charging–15 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 hours
Design
Weight–254 g
Bluetooth–5.3
Two devices at onceYesYes
Headphone cableYesYes
ControlsPower/Bluetooth slider, volume and multi-function buttons on the right earcup; NFC touchpoint for pairingOn 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 headphones
MicrophonesBuilt-in microphones for calls; the launch announcement describes a dual-microphone system for voice pickupEight microphones in total; four are used for calls (two on each ear cup), in a beamforming array
Fit and ear tipsAround-ear cushions and folding headband with rotating earcupsAround-ear (circumaural) with an adjustable headband; removable protein leather cushions; plastic, aluminium and protein leather; fold flat for the carry case
Water resistance detail–No water resistance rating published
Works withBose Connect app for iOS and Android; stores eight Bluetooth pairings and can connect to two devices at once, with one audio stream playingBose 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 audio
ColoursBlack and Silver at launch; Midnight Blue was sold laterBlack and White Smoke at launch; What Hi-Fi lists later Lunar Blue and Diamond 60th Edition finishes
In the boxHeadphones, carry case, USB charging cable, back-up audio cable and airline adapterHeadphones, carry case, 3.5 mm to 2.5 mm audio cable, USB-C (A to C) cable (50.8 cm), safety sheet

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