Sony WH-CH700N vs Sony WH-CH730N

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WH-CH700N compared with WH-CH730N
SonyWH-CH700NSonyWH-CH730N
Overview
Released2018September 2026
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency mode–Yes
Driver size40 mm30 mm
BackClosedClosed
Impedance–25 ohms
Bluetooth codecsSBC, AAC, aptX and aptX HDSBC, AAC and LC3
Lossless over USB-C–No
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.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 detailDigital noise cancelling; hold the NC button for AI noise cancelling to analyse surroundings and choose between three modes.Dual Noise Sensor technology; Ambient Sound Mode and noise-cancelling switch
Audio featuresDSEE; app equaliser and VPT surround settings.DSEE upscaling and customisable audio settings in Sony's app
Battery
Listening time (maker's claim)Up to 35 hoursUp to 50 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 75 hours with noise cancelling off; call time up to 35 hours with noise cancelling on or 40 hours off
Fast chargingMicro-USB; approximately seven hours for a full charge; ten minutes gives about 60 minutes of music playback.3 minutes gives up to 1 hour of playback; full charge approximately 3 hours
Design
Weight240 g207 g (better)
Bluetooth4.16.0
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.Physical buttons for playback, volume, power and noise-cancelling/ambient selection (Techtesters)
MicrophonesOmnidirectional electret condenser microphone, 50 Hz–8 kHz.Precise Voice Pickup combines beamforming microphones, optimised placement and AI noise reduction
Fit and ear tipsAdjustable headband; inward-angled drivers; earcups swivel flat; approximately 240 g excluding cable.Folding over-ear headband
Water resistance detailNot waterproofNo water resistance rating published
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.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, Grey and Blue; regional availability variesBlack, White, Pink, Beige, Blue
In the boxHeadphones, approximately 1.2 m detachable headphone cable and micro-USB charging cable.1.2 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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