Bose QuietComfort Ultra Headphones (2nd Gen) vs Sony ULT WEAR (WH-ULT900N)

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QuietComfort Ultra Headphones (2nd Gen) compared with ULT WEAR (WH-ULT900N)

	BoseQuietComfort Ultra Headphones (2nd Gen)	SonyULT WEAR (WH-ULT900N)
Overview
Released
Released	September 2025	April 2024
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	Yes	Yes
Transparency mode
Transparency mode	Yes	Yes
Driver size
Driver size	–	40 mm
Spatial audio with head tracking
Spatial audio with head tracking	Yes	–
Bluetooth codecs
Bluetooth codecs	SBC, AAC and aptX Adaptive	SBC, AAC and LDAC
Lossless over USB-C
Lossless over USB-C	Yes	No
Chip
Chip	–	V1
Drivers
Drivers	–	40 mm dome-type driver designed for the ULT POWER SOUND series, neodymium magnet; 5 Hz to 20,000 Hz (wired, switched on); sensitivity 110 dB/mW switched on, 100 dB/mW switched off; impedance 314 Ω switched on, 32 Ω switched off (1 kHz, wired)
Chip
Chip	–	Integrated Processor V1
Noise cancelling detail
Noise cancelling detail	Quiet 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	Dual Noise Sensor technology, with external noise-cancelling microphones on both ear cups; Ambient Sound Mode; Quick Attention Mode
Audio features
Audio features	Bose 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	ULT button (ULT1 for deep bass, ULT2 for more powerful bass, or off); LDAC (Hi-Res Audio Wireless); DSEE upscaling; 360 Reality Audio; equaliser in the app
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 30 hours	Up to 30 hours
Battery life detail
Battery life detail	Up 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	Up to 50 hours with noise cancelling off (AAC or SBC); with LDAC, 25 hours with noise cancelling on or 40 hours off; talk time up to 30 hours (40 hours with noise cancelling off); up to 30 hours on the headphone cable with noise cancelling on (50 hours off); the ULT bass effect, DSEE and the equaliser shorten battery life; can't be used while charging
Fast charging
Fast charging	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	3 minutes gives about 90 minutes of playback, 10 minutes about 5 hours; full charge in about 3.5 hours (0.5 A or higher USB adaptor)
Design
Weight
Weight	264 g	255 g (better)
Bluetooth
Bluetooth	5.4	5.2
Two devices at once
Two devices at once	Yes	Yes
Headphone cable
Headphone cable	Yes	Yes
Controls
Controls	On 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	Touch sensor control panel on the right ear cup (double-tap to play, pause or answer calls; swipe forwards or backwards to skip; swipe up or down for volume; hold for the voice assistant; cover with your hand for Quick Attention Mode); power, NC/AMB and ULT buttons on the left ear cup; a proximity sensor in the left unit pauses music when the headphones are taken off
Microphones
Microphones	Four microphones for calls, two on each ear cup	External noise-cancelling microphones on both ear cups; call microphone on the left ear cup; electret condenser, omnidirectional
Fit and ear tips
Fit and ear tips	Around-ear (circumaural) with an adjustable headband; removable protein leather cushions; plastic and aluminium build with polished metal yokes; folds for the carry case	Closed, over-ear; soft earpads; folds up for the supplied carrying case
Water resistance detail
Water resistance detail	–	No water resistance rating
Works with
Works with	Bose 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	Sony | Sound Connect app (formerly Headphones Connect) for iOS and Android; multipoint connection to two devices (AAC or SBC only while connected to two); Google Assistant and Amazon Alexa; Bluetooth 5.2 Class 1, about 10 m range; A2DP, AVRCP, HFP and HSP
Colours
Colours	Black, White Smoke, Driftwood Sand and Midnight Violet at launch; Bose UK now also sells Cherry Chocolate, Desert Gold and Olive Green	Black, Forest Grey, Off White
In the box
In the box	Headphones, carry case, 3.5 mm to 2.5 mm audio cable, USB-C to USB-C cable (99 cm), safety sheet	Headphones, USB-C cable (USB-A to USB-C), headphone cable (about 1.2 m, gold-plated L-shaped stereo mini plug), carrying case, documents