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Sony WH-1000XM3 vs Sony WH-CH730N

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

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SonyWH-1000XM3SonyWH-CH730N
Overview
ReleasedSeptember 2018September 2026
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size40 mm30 mm
BackClosedClosed
Impedance–25 ohms
Bluetooth codecsSBC, AAC, aptX, aptX HD and LDACSBC, AAC and LC3
Lossless over USB-C–No
ChipHD Noise Cancelling Processor QN1–
Drivers40 mm dome drivers with aluminium-coated liquid crystal polymer diaphragms, CCAW voice coils and neodymium magnets; wired frequency response 4 Hz–40 kHz. Impedance is 47 ohms powered on and 16 ohms off; sensitivity 104.5 dB/mW on and 101 dB/mW off.Dynamic driver; wired response 6 Hz to 20,000 Hz (JEITA), Bluetooth 20 Hz to 20,000 Hz at 44.1 kHz sampling; 100 Ω powered on, 25 Ω powered off; sensitivity 108 dB/mW powered on, 100 dB/mW powered off
Noise cancelling detailQN1 processor and dual noise sensors; Personal NC Optimizer and Atmospheric Pressure Optimizing; Ambient Sound Mode, Quick Attention and Adaptive Sound ControlDual Noise Sensor technology; Ambient Sound Mode and noise-cancelling switch
Audio featuresDSEE HX upscaling; Bluetooth frequency response 20 Hz–20 kHz at 44.1 kHz sampling, or 20 Hz–40 kHz with LDAC at 96 kHz and 990 kbps; QN1 includes a DAC and amplifierDSEE upscaling and customisable audio settings in Sony's app
Battery
Listening time (maker's claim)Up to 30 hoursUp to 50 hours
Battery life detailMaximum 30 hours with noise cancelling or 38 hours off uses AAC with DSEE HX off. The manual lists 24 hours with noise cancelling for aptX, aptX HD and LDAC; SBC is 28 hours with noise cancelling and DSEE HX off.Up to 75 hours with noise cancelling off; call time up to 35 hours with noise cancelling on or 40 hours off
Charging caseUSB-C charging; about 3 hours for a full charge; USB does not carry audio–
Fast charging10 minutes gives up to 5 hours with a USB adapter rated at least 1.5 A3 minutes gives up to 1 hour of playback; full charge approximately 3 hours
Design
Weight255 g207 g
Bluetooth4.26.0
Two devices at onceYesYes
Headphone cableYesYes
ControlsRight earcup touch panel for playback, volume and calls; holding a palm over it activates Quick Attention; separate power and NC/AMBIENT buttonsPhysical buttons for playback, volume, power and noise-cancelling/ambient selection (Techtesters)
MicrophonesInternal and external microphones for noise cancelling; built-in microphones for Bluetooth callsPrecise Voice Pickup combines beamforming microphones, optimised placement and AI noise reduction
Fit and ear tipsCircumaural ear cushions; adjustable headband and folding earcups; carrying case suppliedFolding over-ear headband
Water resistance detail–No water resistance rating published
Works withBluetooth A2DP, AVRCP, HFP and HSP; NFC pairing. Multipoint connects one music source using A2DP and another device for calls using HFP/HSP, without two music sources; unavailable with Google Assistant or Alexa assigned. The supplied cable allows passive listening, but disables Bluetooth and does not carry the headphone microphone.LE Audio, multipoint, Fast Pair and Swift Pair; Bluetooth profiles A2DP, AVRCP, HFP and HSP; Sony's current specifications list LC3 and LE Audio, although SoundGuys' launch review suggests LE Audio may need a later firmware update; USB-C is charging-only (Techtesters)
ColoursBlack, Platinum SilverBlack, White, Pink, Beige, Blue
In the boxHeadphones, carrying case, 1.2 m headphone cable, approximately 20 cm USB-A to USB-C cable, in-flight plug adapter1.2 m detachable headphone cable with gold-plated L-shaped plug, warranty card and reference guide; no carrying case or USB charging cable listed

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