Sony WH-1000XM2 vs Sony WH-CH520

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

Better figure, where one is clearly better

WH-1000XM2 compared with WH-CH520
SonyWH-1000XM2SonyWH-CH520
Overview
ReleasedSeptember 2017March 2023
Sound
TypeOver-earOn-ear
Noise cancellingYesNo
Transparency modeYesNo
Driver size40 mm30 mm
BackClosedClosed
Bluetooth codecsSBC, AAC, aptX, aptX HD and LDACSBC and AAC
Lossless over USB-C–No
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 responseBluetooth response 20 Hz to 20,000 Hz at 44.1 kHz sampling
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 earcup–
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 and customisable equaliser in Sony | Sound Connect (formerly Headphones Connect)
Battery
Listening time (maker's claim)Up to 30 hoursUp to 50 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 40 hours of calls and 200 hours on standby; no passive operation or wired playback
Fast chargingTen minutes of charging gives up to 70 minutes of playback3 minutes gives up to 1.5 hours; full charge approximately 3 hours
Design
Weight275 g147 g (better)
Bluetooth4.15.2
Two devices at once–Yes
Headphone cableYesNo
ControlsRight earcup touch panel for playback, calls and volume; separate power and noise cancelling/ambient buttonsPhysical buttons for playback, calls, volume and track selection; press the play/call button to use the connected phone's Siri or Google voice assistant
Microphones–Built-in call microphone with noise suppression processing
Fit and ear tipsCircumaural ear cushions; swivelling earcups fold into the supplied carrying caseAdjustable padded headband, soft earpads and swivelling earcups
Water resistance detail–No water resistance rating published
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 batteryTwo-device multipoint, Fast Pair and Swift Pair; approximately 10 m range, profiles A2DP, AVRCP, HFP and HSP; USB-C is charging-only (SoundGuys)
ColoursBlack, Champagne GoldBlack, Blue, White, Beige; Pink and Yellow added in March 2025; One Piece Black and One Piece White limited editions on the current UK page
In the boxHeadphones, carrying case, 1.5 m headphone cable, USB cable and in-flight plug adaptorHeadphones and USB charging cable; no carrying case listed

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