Beats Solo 4 vs Sony WH-CH520

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Solo 4 compared with WH-CH520

	BeatsSolo 4	SonyWH-CH520
Overview
Released
Released	May 2024	March 2023
Sound
Type
Type	On-ear	On-ear
Noise cancelling
Noise cancelling	No	No
Transparency mode
Transparency mode	No	No
Spatial audio with head tracking
Spatial audio with head tracking	Yes	–
Driver size
Driver size	40 mm	30 mm
Back
Back	Closed	Closed
Bluetooth codecs
Bluetooth codecs	SBC and AAC	SBC and AAC
Lossless over USB-C
Lossless over USB-C	Yes	No
Drivers
Drivers	Custom-built 40 mm transducers	Bluetooth response 20 Hz to 20,000 Hz at 44.1 kHz sampling
Audio features
Audio features	Personalised Spatial Audio with dynamic head tracking on compatible Apple devices; creating a personalised profile requires an iPhone with a TrueDepth camera; lossless audio over USB-C	DSEE upscaling and customisable equaliser in Sony | Sound Connect (formerly Headphones Connect)
Battery
Listening time (maker's claim)
Listening time (maker's claim)	Up to 50 hours	Up to 50 hours
Battery life detail
Battery life detail	Apple's playback test used 256 Kbps AAC tracks at 50% volume; 3.5 mm passive playback requires no battery power; USB-C audio can play while charging	Up to 40 hours of calls and 200 hours on standby; no passive operation or wired playback
Fast charging
Fast charging	Fast Fuel gives up to 5 hours of playback from 10 minutes of charging	3 minutes gives up to 1.5 hours; full charge approximately 3 hours
Design
Weight
Weight	217 g	147 g (better)
Bluetooth
Bluetooth	5.3	5.2
Two devices at once
Two devices at once	No	Yes
Headphone cable
Headphone cable	Yes	No
Controls
Controls	Physical b button for playback and calls; volume buttons and power button; Siri on compatible Apple devices	Physical 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
Microphones	Multiple digital beamforming microphones with a voice-targeting algorithm	Built-in call microphone with noise suppression processing
Fit and ear tips
Fit and ear tips	Folding headband with brushed metal hinges, ergonomically angled ear cups and UltraPlush cushions	Adjustable padded headband, soft earpads and swivelling earcups
Dimensions
Dimensions	Length 17.7 cm, width 15.8 cm, height 6.8 cm (Beats' published dimensions)	–
Water resistance detail
Water resistance detail	No water or sweat resistance rating published	No water resistance rating published
Works with
Works with	Class 1 Bluetooth; one-touch pairing and automatic pre-pairing across iCloud or Google accounts, Apple Find My and Android Find My Device; SBC and AAC codecs (SoundGuys); no simultaneous Bluetooth multipoint (TechRadar)	Two-device multipoint, Fast Pair and Swift Pair; approximately 10 m range, profiles A2DP, AVRCP, HFP and HSP; USB-C is charging-only (SoundGuys)
Colours
Colours	Matte Black, Slate Blue, Cloud Pink	Black, 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 box
In the box	Headphones, carrying case, USB-C to USB-C cable, 3.5 mm audio cable, quick start guide and warranty card	Headphones and USB charging cable; no carrying case listed