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Sony WH-1000XM2 vs Sony WH-CH720N

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

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SonyWH-1000XM2SonyWH-CH720N
Overview
ReleasedSeptember 2017March 2023
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size40 mm30 mm
BackClosed–
Bluetooth codecsSBC, AAC, aptX, aptX HD and LDACSBC and AAC
Lossless over USB-C–No
Chip–V1
Drivers40 mm dome-type drivers with aluminium-coated liquid crystal polymer diaphragms, CCAW voice coils and neodymium magnets; 4 Hz to 40 kHz wired frequency response30 mm dynamic driver; 7 Hz to 20,000 Hz (JEITA, wired, switched on); sensitivity 108 dB/mW switched on, 99 dB/mW switched off; impedance 325 Ω switched on, 31 Ω switched off (1 kHz, wired)
Chip–Integrated Processor V1
Noise cancelling detailDual Noise Sensor technology, Personal NC Optimiser and Atmospheric Pressure Optimising; Adaptive Sound Control and adjustable Ambient Sound Mode through the app; Quick Attention passes outside sound through while a hand covers the right earcupDual Noise Sensor technology, with two microphones on each ear cup; Ambient Sound Mode adjustable in 20 levels in the app
Audio featuresLDAC, aptX HD, aptX, AAC and SBC over Bluetooth; DSEE HX upscaling, S-Master HX amplification, equaliser and surround modes in Sony Headphones Connect; NFC pairingDSEE upscaling; 360 Reality Audio; equaliser in the app
Battery
Listening time (maker's claim)Up to 30 hoursUp to 35 hours
Battery life detailUp to 30 hours with noise cancelling on or 38 hours off; up to 40 hours of standby with noise cancelling on or 200 hours off; full charge in about four hoursUp to 50 hours with noise cancelling off (AAC or SBC); 35 hours with Ambient Sound Mode on; talk time up to 35 hours (40 hours with noise cancelling off); up to 35 hours on the headphone cable with noise cancelling on (50 hours off); DSEE, the equaliser and the voice-assistant wake word shorten battery life; can't be used while charging
Fast chargingTen minutes of charging gives up to 70 minutes of playback3 minutes gives about 60 minutes of playback, 10 minutes about 4.5 hours; full charge in about 3.5 hours (0.5 A or higher USB adaptor)
Design
Weight275 g192 g
Bluetooth4.15.2
Two devices at once–Yes
Headphone cableYesYes
ControlsRight earcup touch panel for playback, calls and volume; separate power and noise cancelling/ambient buttonsButtons for power, volume up and down, play/call (press twice to skip forwards, three times to skip back; hold for the voice assistant) and NC/AMB; hands-free "OK Google" or "Alexa" wake word
Microphones–Two noise-cancelling microphones on each ear cup; beamforming call microphones with Precise Voice Pickup technology and a Wind Noise Reduction Structure
Fit and ear tipsCircumaural ear cushions; swivelling earcups fold into the supplied carrying caseClosed, over-ear; synthetic leather and urethane earpads; sliders on both sides of the headband
Water resistance detail–No water resistance rating
Works withBluetooth A2DP, AVRCP, HFP and HSP; Sony Headphones Connect app for noise cancelling and sound controls; detachable 3.5 mm cable supports listening with the headphones switched off; Micro-USB charges the batterySony | Sound Connect app (formerly Headphones Connect) for iOS and Android; multipoint connection to two devices; Google Fast Pair and Microsoft Swift Pair; Bluetooth 5.2 Class 1, about 10 m range; A2DP, AVRCP, HFP and HSP
ColoursBlack, Champagne GoldBlack, Blue, White; Pink added in 2025
In the boxHeadphones, carrying case, 1.5 m headphone cable, USB cable and in-flight plug adaptorHeadphones, USB-C cable (USB-A to USB-C, about 20 cm), headphone cable (about 1.2 m)

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