Bose QuietComfort Headphones (2nd Gen) vs Sony WH-1000XM4C

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

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QuietComfort Headphones (2nd Gen) compared with WH-1000XM4C
BoseQuietComfort Headphones (2nd Gen)SonyWH-1000XM4C
Overview
ReleasedAugust 2026September 2026
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size–40 mm
Back–Closed
Spatial audio with head trackingYes–
Bluetooth codecsSBC and AACSBC, AAC and LDAC
Chip–HD Noise Cancelling Processor QN1
Drivers–40 mm drivers with liquid crystal polymer diaphragms; powered wired frequency response 4 Hz–40 kHz. Impedance is 40 ohms powered on and 16 ohms off; sensitivity 106 dB/mW on and 101 dB/mW off.
Lossless over USB-CYes–
Noise cancelling detailQuietControl noise cancellation with a six-microphone system; adaptive feedforward control compensates for gaps in the ear cup seal (glasses, hair, hats); Quiet, Aware, Immersion and Cinema modes plus custom modes; Aware mode with ActiveSense softens sudden noise spikes; noise cancelling adjustable or fully off in the Bose app; wind block in custom modesQN1 and two noise-sensing microphones per earcup; Personal NC Optimizer, Ambient Sound Mode, Quick Attention and Adaptive Sound Control
Audio featuresBose TrueSpatial Technology with Immersive Audio (Still keeps the virtual speakers in place as you turn your head; Motion lets them follow) and Cinema Mode; SoundDesign signal processing; three-band EQ in the Bose app; two-way USB-C audio with lossless input up to 24-bit/48 kHz and voice output up to 24-bit/16 kHzDSEE Extreme upscaling, 10-band equaliser in Sony Sound Connect and 360 Reality Audio with compatible services; Bluetooth response 20 Hz–20 kHz at 44.1 kHz sampling, or 20 Hz–40 kHz with LDAC at 96 kHz and 990 kbps
Battery
Listening time (maker's claim)Up to 24 hoursUp to 27 hours
Battery life detailUp to 24 hours with noise cancelling on, 18 hours with Immersive Audio on; tested by Bose at 75 dB SPL; can be used over Bluetooth or USB audio while charging; the USB-C to 3.5 mm cable works only with the headphones powered on, so with a flat battery Bose says to listen over USB-C while chargingThe manual lists AAC/SBC playback up to 27 hours with noise cancelling or 34 hours off; LDAC up to 20 hours on or 27 hours off. DSEE Extreme, Speak-to-Chat and equaliser settings can shorten these figures.
Charging case–USB-C charging; approximately 3 hours for a full charge; no USB audio playback
Fast charging15 minutes gives up to 2.5 hours of playback; full charge in up to 3 hours (slower while in use)3 minutes gives about 1 hour of playback
Design
Weight230 g (better)253 g
Bluetooth5.46.0
Two devices at onceYesYes
Headphone cableYesYes
ControlsPhysical buttons; on the right ear cup, a Bluetooth/power slider, a multi-function button (play, pause, skip, calls) and volume buttons; on the left ear cup, an Action button for modes and a shortcut to the voice assistant, Spotify or Immersive Audio settingsTouch panel on the right earcup for playback, volume and calls; separate power and noise-cancelling buttons; wear detection, Quick Attention and Speak-to-Chat; app-configurable Quick Access
MicrophonesSix microphones, used for noise cancelling and calls, with updated background noise filtering for callsTwo noise-sensing microphones per earcup; Precise Voice Pickup for Bluetooth calls
Fit and ear tipsAround-ear (circumaural) with a redesigned adjustable headband with smooth sliders; oval ear cups with removable protein leather cushions; plastic headband and yokes; folds for the carry caseAdjustable headband, swivelling and folding earcups; colour-matched carrying case
Water resistance detailNo water resistance rating publishedThe manual states that the headset is not waterproof
Works withBose app for iOS and Android; multipoint connection to two devices; Google Fast Pair; USB-C audio for calls and video conferencing on computersBluetooth A2DP, AVRCP, HFP and HSP. Multipoint switches music between two devices; SoundGuys and Tom's Hardware report that LDAC is unavailable in that mode. The supplied cable allows passive playback, disables Bluetooth and does not carry the headphone microphone.
ColoursBlack, White Smoke; limited-edition Eucalyptus Green, Dewdrop Mint and Rosewood Mauve; Bose UK also lists Sky PinkBlack, Platinum Silver, Lavender; official press photo shows Lavender folded
In the boxHeadphones, carry case, USB-C to USB-C cable (1 m), USB-C to 3.5 mm cable, safety sheetUK box includes headphones, carrying case and approximately 1.2 m headphone cable; USB charging cable supplied only with mainland China models

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