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Sony WH-CH720N vs Sony WH-CH730N

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

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SonyWH-CH720NSonyWH-CH730N
Overview
ReleasedMarch 2023September 2026
Sound
TypeOver-earOver-ear
Noise cancellingYesYes
Transparency modeYesYes
Driver size30 mm30 mm
Back–Closed
Impedance–25 ohms
Bluetooth codecsSBC and AACSBC, AAC and LC3
Lossless over USB-CNoNo
ChipV1–
Drivers30 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)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
ChipIntegrated Processor V1–
Noise cancelling detailDual Noise Sensor technology, with two microphones on each ear cup; Ambient Sound Mode adjustable in 20 levels in the appDual Noise Sensor technology; Ambient Sound Mode and noise-cancelling switch
Audio featuresDSEE upscaling; 360 Reality Audio; equaliser in the appDSEE upscaling and customisable audio settings in Sony's app
Battery
Listening time (maker's claim)Up to 35 hoursUp to 50 hours
Battery life detailUp 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 chargingUp to 75 hours with noise cancelling off; call time up to 35 hours with noise cancelling on or 40 hours off
Fast charging3 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)3 minutes gives up to 1 hour of playback; full charge approximately 3 hours
Design
Weight192 g207 g
Bluetooth5.26.0
Two devices at onceYesYes
Headphone cableYesYes
ControlsButtons 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 wordPhysical buttons for playback, volume, power and noise-cancelling/ambient selection (Techtesters)
MicrophonesTwo noise-cancelling microphones on each ear cup; beamforming call microphones with Precise Voice Pickup technology and a Wind Noise Reduction StructurePrecise Voice Pickup combines beamforming microphones, optimised placement and AI noise reduction
Fit and ear tipsClosed, over-ear; synthetic leather and urethane earpads; sliders on both sides of the headbandFolding over-ear headband
Water resistance detailNo water resistance ratingNo water resistance rating published
Works withSony | 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 HSPLE 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, Blue, White; Pink added in 2025Black, White, Pink, Beige, Blue
In the boxHeadphones, USB-C cable (USB-A to USB-C, about 20 cm), headphone cable (about 1.2 m)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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