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Sony WH-CH700N vs Sony WH-CH720N

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

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SonyWH-CH700NSonyWH-CH720N
Overview
Released2018March 2023
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency mode–Yes
Driver size40 mm30 mm
BackClosed–
Bluetooth codecsSBC, AAC, aptX and aptX HDSBC and AAC
Lossless over USB-C–No
Chip–V1
Drivers40 mm dome drivers with neodymium magnets; wired response 7 Hz–20 kHz (JEITA), or 20 Hz–20 kHz powered on. Impedance 22 ohms powered on and 48 ohms off; sensitivity 97 dB/mW on and 98 dB/mW off at 1 kHz.30 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 detailDigital noise cancelling; hold the NC button for AI noise cancelling to analyse surroundings and choose between three modes.Dual Noise Sensor technology, with two microphones on each ear cup; Ambient Sound Mode adjustable in 20 levels in the app
Audio featuresDSEE; app equaliser and VPT surround settings.DSEE upscaling; 360 Reality Audio; equaliser in the app
Battery
Listening time (maker's claim)Up to 35 hoursUp to 35 hours
Battery life detailBluetooth playback with aptX/aptX HD: up to 35 hours with noise cancelling, 40 without. SBC/AAC with DSEE enabled: 35/40 hours; with DSEE off: 40/45 hours. Powered wired playback with noise cancelling: up to 50 hours. Actual duration depends on settings and conditions.Up 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 chargingMicro-USB; approximately seven hours for a full charge; ten minutes gives about 60 minutes of music playback.3 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
Weight240 g192 g
Bluetooth4.15.2
Two devices at onceYesYes
Headphone cableYesYes
ControlsPhysical power, volume, playback/call and NC buttons; phone voice assistant access. NC button can be reassigned to Google Assistant or Alexa with compatible firmware, app and phone; availability varies by region.Buttons 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
MicrophonesOmnidirectional electret condenser microphone, 50 Hz–8 kHz.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 tipsAdjustable headband; inward-angled drivers; earcups swivel flat; approximately 240 g excluding cable.Closed, over-ear; synthetic leather and urethane earpads; sliders on both sides of the headband
Water resistance detailNot waterproofNo water resistance rating
Works withNFC; A2DP, AVRCP, HFP and HSP. Multipoint assigns music and calls to different devices; unavailable while using Google Assistant or Alexa. Up to eight paired devices. Wired listening works with power off and disables Bluetooth; calls use the connected phone's microphone.Sony | 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, Grey and Blue; regional availability variesBlack, Blue, White; Pink added in 2025
In the boxHeadphones, approximately 1.2 m detachable headphone cable and micro-USB charging cable.Headphones, USB-C cable (USB-A to USB-C, about 20 cm), headphone cable (about 1.2 m)

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