Sonos Ace vs Sony ULT WEAR (WH-ULT900N)

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Ace compared with ULT WEAR (WH-ULT900N)

	SonosAce	SonyULT WEAR (WH-ULT900N)
Overview
Released
Released	June 2024	April 2024
Sound
Type
Type	Over-ear	Over-ear
Noise cancelling
Noise cancelling	Yes	Yes
Transparency mode
Transparency mode	Yes	Yes
Spatial audio with head tracking
Spatial audio with head tracking	Yes	–
Driver size
Driver size	40 mm	40 mm
Bluetooth codecs
Bluetooth codecs	SBC, AAC and aptX Lossless	SBC, AAC and LDAC
Lossless over USB-C
Lossless over USB-C	Yes	No
Chip
Chip	–	V1
Drivers
Drivers	Custom-designed 40 mm dynamic driver in each cup	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	Active Noise Cancellation that adapts to fit and surroundings; Aware mode blends in ambient sound; sidetone lets you hear your own voice on calls with noise cancelling on	Dual Noise Sensor technology, with external noise-cancelling microphones on both ear cups; Ambient Sound Mode; Quick Attention Mode
Audio features
Audio features	Spatial audio with Dolby Atmos; Sonos Intelligent Motion Processing with Dolby Head Tracking (turned on in the Sonos app); TrueCinema maps your room to render virtual surround sound from a Sonos soundbar; TV Audio Swap from Sonos Arc Ultra, Arc, Beam or Ray, to one or two pairs at once; adjustable bass, treble and loudness in the Sonos app; lossless audio over USB-C (USB-C to USB-C or USB-C to 3.5 mm) or over Bluetooth with Snapdragon Sound aptX Lossless on supported Android devices	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	1060 mAh Li-ion battery; up to 30 hours of listening or 24 hours of calls with noise cancelling or Aware mode on	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	3 minutes of charging from empty gives 3 hours of listening; 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	312 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	Power/Bluetooth button; Content Key for playback, volume, calls and TV Audio Swap; Noise Control button to switch between noise cancelling and Aware mode; wear detection pauses playback when you take the headphones off	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	Eight microphones for noise control and voice targeting; beamforming for calls; mesh over the microphones reduces wind noise	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	Memory foam cushions in vegan leather, replaceable; the right cup has a contrasting colour inside; folds flat into a slim travel case with a magnetically detachable cable pouch; 191 × 160 × 85 mm	Closed, over-ear; soft earpads; folds up for the supplied carrying case
Water resistance detail
Water resistance detail	No water resistance rating published	No water resistance rating
Works with
Works with	Bluetooth 5.4 with multipoint to two devices; Sonos app for iOS and Android; connects over Wi-Fi to a Sonos home cinema player for TV Audio Swap	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, Soft White	Black, Forest Grey, Off White
In the box
In the box	Headphones, travel case with cable pouch, USB-C to USB-C cable, USB-C to 3.5 mm cable	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