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Beats Flex vs Sony WH-CH520

Product A: Beats

Flex

55 of 161 known
Change Beats Flex

Compare the Sony WH-CH520 with

Product B: Sony

WH-CH520

75 of 161 known
Change Sony WH-CH520

Compare the Beats Flex with

57 of 152 fields differ

Download CSVDownload JSON
  • 26 different values
  • 31 known for one only
  • 18 the same
  • 77 missing for both

Biggest differences

Each bar uses the scale of all 149 headsets and headphones.

  1. Battery life (claimed, max)A: 12hB: 50hSony is 4.2 times higher.
  2. Driver sizeA: 8.2mmB: 30mmSony is 3.7 times higher.

Weight

0 to 400 g

Headset weight
A18.6g
B147g

All 161 fields

Every value links to where we found it.

ABeats Flex
BSony WH-CH520

General

6 of 8 differ
Series
Not available
Not available
Model numbers
A2295, MYMC2LL/A, MYMD2LL/A, MYME2LL/A6Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/flex/flex-sh-zm.pdfRead 16 October 2026Safety and handling sheet prints Model A2295. The MYM order numbers are US retailer part numbers per colour from Abt and GearBrain.13Retailer pageabt.com/Questions-Answers/Beats-By-Dr.-Dre-Beats-Flex-Black-Wireless-Earphones-MYMC2LLA14279755/155563.htmlRead 16 October 2026Black unit MYMC2LL/A.14Retailer pagegearbrain.com/devices/337589571EB911EBB1989E8FF00A5CB2.htmlRead 16 October 2026Yuzu Yellow unit MYMD2LL/A.15Retailer pageabt.com/Questions-Answers/Beats-By-Dr.-Dre-Beats-Flex-Smoke-Gray-Wireless-Earphones-MYME2LLA14322229/158121.htmlRead 16 October 2026Smoke Gray unit MYME2LL/A.
YY29581Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Guide cover explicitly identifies the regulatory model.
GTIN / EAN
190199801561, 190199801646, 19019980172113Retailer pageabt.com/Questions-Answers/Beats-By-Dr.-Dre-Beats-Flex-Black-Wireless-Earphones-MYMC2LLA14279755/155563.htmlRead 16 October 2026Black unit UPC 190199801561.14Retailer pagegearbrain.com/devices/337589571EB911EBB1989E8FF00A5CB2.htmlRead 16 October 2026Yuzu Yellow unit UPC 190199801646.15Retailer pageabt.com/Questions-Answers/Beats-By-Dr.-Dre-Beats-Flex-Smoke-Gray-Wireless-Earphones-MYME2LLA14322229/158121.htmlRead 16 October 2026Smoke Gray unit UPC 190199801721.
02724292520511Retailer pagebhphotovideo.com/c/product/1754496-REG/sony_whch520_b_wireless_on_ear_headphones_with.htmlRead 7 October 2026Exact Black WHCH520/B product UPC 027242925205. Other colours do not inherit this identifier.
Announced
13 October 20207Press articlemacrumors.com/2020/10/13/beats-flex-earphonesRead 16 October 2026Article dated 2020-10-13 covers the launch announcement and pre-orders.
21 February 20235Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Dated manufacturer release.
Status
Available1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026US page shows Add to Bag at 69.99 USD. This is a current price and not the launch price.
Not available
Predecessor
Not available
Not available
Successor
Not available
Sony WH-CH53021Reviewtomsguide.com/audio/headphones/sony-wh-1000xm4c-wh-ch730n-wh-ch530-announcedRead 23 October 2026Tom's Guide says the Sony WH-CH530 succeeds the WH-CH520.22Measurementsoundguys.com/sony-wh-ch530-review-162786Read 23 October 2026SoundGuys calls the WH-CH520 the previous model of the WH-CH530.
Launch price (US)
$49.997Press articlemacrumors.com/2020/10/13/beats-flex-earphonesRead 16 October 2026Headline price 49.99 USD in the US. Business Wire release headline says 49. Tax is not included in a US shelf price.
$59.999Press releasesony.mediaroom.com/2023-02-21-Sony-Electronics-announces-two-new-headphone-models-the-WH-CH720N-over-ear-and-WH-CH520-on-ear-wireless-headphones-featuring-Sonys-Digital-Sound-Equipment-EngineRead 7 October 2026Original Sony Electronics release dated February 21, 2023. Pricing and availability explicitly gives WH-CH520 MSRP $59.99. US consumer price excludes sales tax. WH-CH720N price $149.99 is separate.
Launch price (EU)
€48.658Press articlecomputerbase.de/2020-10/beats-flex-in-ears-appleRead 16 October 2026German pre-order price at the Apple Store in October 2020, 48.65 EUR incl. VAT as published. French coverage (mac4ever) gives 49.95 EUR. The German figure is stored by the German price rule.
€7010Maker product pagecommunity.sony.co.uk/t5/discover-sony/not-one-but-two-new-headphones-launched-this-month/ba-p/3904427Read 7 October 2026February 2023 Sony Community Team launch article. Pricing and availability gives WH-CH520 March 2023 suggested retail price 70 EUR and 60 GBP. Published European consumer price includes VAT. Direct HTTP returned 403. Full public indexed article read through web. Later discounts excluded.
Markets
Not available
US9Press releasesony.mediaroom.com/2023-02-21-Sony-Electronics-announces-two-new-headphone-models-the-WH-CH720N-over-ear-and-WH-CH520-on-ear-wireless-headphones-featuring-Sonys-Digital-Sound-Equipment-EngineRead 7 October 2026Original US release names Sony Electronics, Amazon and Best Buy sales. Other regions and colours do not inherit US part numbers.
Colours
Beats Black, Yuzu Yellow, Smoke Gray, Flame Blue7Press articlemacrumors.com/2020/10/13/beats-flex-earphonesRead 16 October 2026Four colors: Beats Black, Yuzu Yellow, Smoke Gray and Flame Blue.
Pink, Yellow, Blue, Beige, White, Black, One Piece Black, One Piece White4Maker product pagesony.co.uk/headphones/products/wh-ch520/specRead 5 October 2026Public indexed maker specification cells. Direct fetch intermittently unavailable. Current UK spec color table including limited One Piece variants. No color-to-SKU mapping inferred.
Segment
Music1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026The maker sells Beats Flex as all-day wireless earbuds under its earbuds category for music, calls and voice assistant. No gaming or sport positioning.
Music5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Introduction music listening on-ear headphones.

Design

5 of 7 differ
Form factor
In-ear1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: In-ear earbuds.
On-ear5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Introduction explicitly on-ear.
Ear cup enclosure
Not available
Closed3Maker product pagesony.jp/headphone/products/WH-CH520/spec.htmlRead 5 October 2026Headphone unit type: closed dynamic.
Wearing style
Neckband1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Flex-Form cable connects the two earbuds and sits around the neck. MacRumors describes the earphones as joined by a wire designed to be worn around the neck.
Headband1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Parts and controls, pages 9-10, labels headband and left/right units.
Folding
Not available
Flat8Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Construction section: earcups pivot 90 degrees. Flat swivel does not mean inward hinge.
Swivelling ear cups
Not available
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch520Read 5 October 2026Designed for all-day comfort: swivel earcups.
RGB lighting
Not available
Not available
Lighting zones
Not available
Not available

Drivers and sound

5 of 20 differ
Driver type
Dynamic10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: Driver Type Dynamic. Apple names custom layered drivers and gives no type.
Dynamic3Maker product pagesony.jp/headphone/products/WH-CH520/spec.htmlRead 5 October 2026Headphone unit type: closed dynamic.
Driver size
8.2mm10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: Driver Size 8.2 mm. Apple publishes no size.
30mm3Maker product pagesony.jp/headphone/products/WH-CH520/spec.htmlRead 5 October 2026Driver unit 30 mm.
Drivers per side
110Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: Driver Count 1. Read as one driver in each earbud.
111Retailer pagebhphotovideo.com/c/product/1754496-REG/sony_whch520_b_wireless_on_ear_headphones_with.htmlRead 7 October 2026Exact Headphone specification table states Number of Drivers 1 per Earpiece. Direct physical count, not inferred from 30 mm diameter.
Diaphragm material
Not available
Not available
Magnet
Not available
Not available
Frequency response (wired or passive)
Not available
Not available
Wireless audio transmission band
Not available
Min20 HzMax20 kHz1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Specifications: A2DP transmission range at 44.1 kHz sampling. This is not acoustic driver response.
Impedance (passive when specified)
32Ω10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: Impedance 32 ohm. Test frequency and power state are not stated.
Not available
Sensitivity (passive when specified)
Not available
Not available
Sensitivity reference
Not available
Not available
THD (claimed)
Not available
Not available
Max input power
Not available
Not available
Max digital audio sample rate
Not available
Not available
Max digital audio bit depth
Not available
Not available
DAC
Not available
Not available
Personalised sound
Not available
Not available
Onboard EQ
Not available
Yes14Press articlesoundguys.com/sony-bluetooth-headphone-control-mac-os-160060Read 7 October 2026July 2026 report lists WH-CH520 among v2 supported devices. It says manual EQ and presets are saved to the headset and need not be reapplied on another device. Applies to Bluetooth playback. CH520 compatibility is developer-reported. Reporter personally tested WH-1000XM5 only. No app platform or ANC features inherited.
Custom EQ bands
Not available
513Reviewwhathifi.com/reviews/sony-wh-ch520Read 7 October 2026Design and features paragraph explicitly states a five-band custom playback equalizer in Headphones Connect. CLEAR BASS control is separate. EQ preset names not stated.
EQ presets
Not available
Not available
Volume limit
Not available
Not available

Spatial audio

1 of 3 differ
Spatial audio support
Not available
360 Reality Audio2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 84 app 360 Reality Audio setup for supported services. Not a bundled paid licence.
Spatial audio licence included
Not available
Not available
Head tracking
Not available
Not available

Noise cancelling

2 of 10 differ
Active noise cancelling
No10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: Adaptive ANC No and Noise Reduction Type Passive. Apple lists no noise cancelling.
No8Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Presentation and connectivity sections explicitly say no active noise cancelling. Review firmware 1.0.1 and Headphones Connect 9.3.0.
ANC type
Not available
Not available
ANC microphones
Not available
Not available
Adaptive ANC
Not available
Not available
ANC levels
Not available
Not available
ANC attenuation (claimed)
Not available
Not available
Transparency mode
Not available
No4Maker product pagesony.co.uk/headphones/products/wh-ch520/specRead 5 October 2026Public indexed maker specification cells. Direct fetch intermittently unavailable. General Features: Ambient Sound Mode No.
Adjustable transparency
Not available
Not available
Conversation detection
Not available
Not available
Wind noise reduction
Yes1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: Built-in microphone with wind reduction for elevated voice clarity. SoundGuys lists wind noise reduction as No. The maker claim is stored.
Not available

Measured

7 of 21 differ
Frequency response notes
SoundGuys calls the response V-shaped. Bass sits above its consumer target curve, the upper mids are emphasized and the treble falls away toward 20 kHz.9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026Summary of the SoundGuys review and lab curve against the SoundGuys consumer target curve. Bass is boosted, upper mids emphasized, highs under-emphasized.
With an ideal fit, bass and lower mids are emphasized. Other midrange harmonics are quieter. A broken seal reduces bass and makes mids and highs more prominent.17Measurementsoundguys.com/sony-wh-ch520-review-98695Read 7 October 2026Public lab frequency-response interpretation under ideal-fit conditions. Tested firmware 1.01, Headphones Connect 8.5, purchased WH-CH520/BZ over four days. Rig, EQ mode and codec not stated in article. Qualitative assessment only. No numeric deviation invented.
Bass amount
Not available
Not available
Treble amount
Not available
Not available
Deviation from target
Not available
Not available
Consistency between fittings
Not available
Not available
Harmonic distortion
Not available
Not available
Sound leakage
Not available
Not available
Measured noise isolation
Not available
Not available
Noise isolation (measured, best)
Not available
Not available
Passive isolation (measured)
Not available
Not available
Mic quality notes
SoundGuys says the microphone is fine for quick calls and voice messages. It rates it poor at rejecting background noise. The review uses an older, non-standardized demo recording.9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026Old, non-standardized demo recording. SoundGuys says it is fine for quick calls and does a poor job of rejecting background noise.
Voices are clear but can sound thin. The microphone separates speech from moderate background noise. Loud environments can overpower the voice.18Measurementrtings.com/headphones/reviews/sony/wh-ch520-wirelessRead 7 October 2026Public Phone Calls verdict from tested Black WH-CH520, RTINGS methodology v1.5. Review updated April 9, 2024. Bluetooth connection. Codec, firmware, host and speech level not stated in public verdict. Membership-locked numeric results not used.
Mic low-frequency extension
Not available
Not available
Mic high-frequency extension
Not available
Not available
Mic speech-to-noise ratio
Not available
Not available
Measured latency
ABeats Flex
Not available
BSony WH-CH520
ConnectionLatency (ms)
Bluetooth224
Source7Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Connectivity section: 224 ms measured Bluetooth delay. Codec, host OS and equipment not stated, so platform/codec cells omitted. Firmware 1.0.1, app 9.3.0. Automatic video compensation does not apply to gaming.
Bluetooth latency (measured, worst)
Not available
224ms
2.4 GHz latency (measured, worst)
Not available
Not available
Measured battery life
ABeats Flex
ConnectionANCHours (h)
BluetoothNo10.4
Source9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026SoundGuys standard battery test with music that peaks at 75 dB SPL until the battery depletes. Result 10 hours 24 minutes over Bluetooth. Codec and firmware are not stated.
BSony WH-CH520
ConnectionHours (h)
Bluetooth59
Bluetooth55.42
Source7Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Runtime section: approximately 59 h at 60% maximum volume using AAC. Tested firmware 1.0.1 and app 9.3.0. ANC absent. Lighting and other app settings not stated. Higher than maker AAC 50 h under this measured volume condition. Published approximation retained, not an invented estimate.19Measurementsoundguys.com/sony-wh-ch520-review-98695Read 7 October 2026Second row is SoundGuys standardized continuous playback result 55 h 25 min, converted exactly to hours. Firmware 1.01, Headphones Connect 8.5, purchased WH-CH520/BZ. Codec, volume and EQ/DSEE settings not stated in article. First row 59 h belongs to existing Les Numeriques AAC test at 60% volume. Distinct methods and conditions. Results are not averaged.
Battery life (measured, max)
10.4h
59h
Clamping force
Not available
Not available
Weight (measured)
Not available
147g(5.2 oz)7Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Comfort section explicitly 147 g on the scale. Tested firmware 1.0.1, Headphones Connect 9.3.0. Bluetooth-only model with built-in mic and no detachable audio cable.

Microphone

3 of 16 differ
Microphone
In-line1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: built-in microphone with wind reduction and on-device controls on the cable. MacRumors places the microphone grille on the left control module of the cable.
Built-in1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Parts and controls, pages 9-10, identifies integrated voice/call microphone.
Microphone element
Not available
Not available
Microphone pickup pattern
Not available
Not available
Voice microphones
11Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text names one built-in microphone.
17Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Microphone section explicitly one unique microphone, voice pickup, not inferred from a diagram.
Total microphones
11Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text names one built-in microphone. No other microphone is listed.
Not available
Mic frequency response
Not available
Not available
Mic sensitivity
Not available
Not available
Mic signal-to-noise
Not available
Not available
Mic sample rate
Not available
Not available
Mic noise reduction
DSP7Press articlemacrumors.com/2020/10/13/beats-flex-earphonesRead 16 October 2026The launch text says the microphone has wind noise reduction and voice clarity optimization. MacRumors' review quotes an advanced voice algorithm. Stored as dsp because the processing type is not named further.
DSP5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Call section explicitly noise suppression processing. AI not claimed.
Flip to mute
Not available
Not available
Mute button
Not available
Not available
Mute indicator
Not available
Not available
Sidetone
Not available
Yes1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Guide pages 72 and 74 explicitly own voice heard through headset microphone during Bluetooth phone calls. Page 82 also states sidetone during Siri. Adjustment not published.
Adjustable sidetone
Not available
Not available
Foam microphone windscreen
Not available
Not available

Connectivity

7 of 20 differ
Audio connections
Bluetooth1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: Class 1 Bluetooth via the Apple W1 chip. No wired audio input is listed.
Bluetooth1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Bluetooth setup chapters for Android, iPhone, Windows and Mac. Analog playback added separately only where the guide proves it.
Analog source plugs
Not available
Not available
Cable connector on headset
Not available
Not available
Longest included cable
Not available
0.2m2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 8: sole included cable is approximately 20 cm USB cable.
Headset USB plug or port
USB-C1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: USB-C charge connector (included). MacRumors places the port on the left control module.12Reviewmacrumors.com/review/beats-flexRead 16 October 2026The USB-C port is on the left housing and has no cover.
USB-C1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Parts and controls, pages 9-10, USB Type-C charging port.
Audio over USB-C cable
No1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026The USB-C connector is named a charge connector. Playback over USB is not listed.
No1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Charging, pages 15-16: music playback and Bluetooth operations cannot be performed while connected to USB power. The USB port is for charging.
Passive wired listening
No9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026No wired playback. The headset is Bluetooth only and the USB-C port charges it.
No4Maker product pagesony.co.uk/headphones/products/wh-ch520/specRead 5 October 2026Public indexed maker specification cells. Direct fetch intermittently unavailable. General Features: Passive Operation No, Inputs No.
Wireless receiver
None1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026In the box list has no receiver or dongle. Audio is Bluetooth only.
None15Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 7 October 2026Complete package inventory gives headset and USB charging cable. All documented playback routes use Bluetooth. No dedicated proprietary wireless audio dongle. Generic host Bluetooth adapters do not count as dedicated receivers.
Wireless receiver connector
Not available
Not available
Wireless range (claimed)
Not available
10m1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Specifications: approximate 10 m line-of-sight. Obstacles and host conditions affect range.
Bluetooth
5.09Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026Review text: Bluetooth 5.0. Apple publishes no version.11Reviewtomsguide.com/reviews/beats-flexRead 16 October 2026Spec box: Connectivity Bluetooth 5.0 with the Apple W1 chip.
5.21Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Specifications chapter, communication system: Bluetooth 5.2.
Bluetooth codecs
SBC, AAC9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026Review text: supports SBC and AAC. Apple names no codec.
SBC, AAC1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Specifications chapter: exact supported A2DP codecs, not Bluetooth version capabilities.
LE Audio
Not available
Not available
Auracast
Not available
Not available
Bluetooth multipoint
No9Reviewsoundguys.com/apple-beats-flex-review-43474Read 16 October 2026Review text: no true Bluetooth multipoint. The W1 chip switches between Apple devices on one iCloud account.
Yes1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Connecting the headset to 2 devices simultaneously chapter. Streams switch, rather than mix.
Multipoint devices
Not available
21Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Connecting the headset to 2 devices simultaneously chapter, two Bluetooth source devices.
Paired devices remembered
Not available
81Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Android pairing, page 25: up to eight paired devices. The oldest registration is replaced when another is paired.
Mixes 2.4 GHz and Bluetooth audio
Not available
Not available
Fast pairing
Not available
Google Fast Pair, Microsoft Swift Pair5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Both models Swift Pair and Fast Pair.
Base station
Not available
Not available

Latency

None of 2 known
Low latency mode
Not available
Not available
Claimed latency
Not available
Not available

Compatibility

2 of 3 differ
Compatible platforms
iOS, macOS, Android2Maker product pageapple.com/shop/product/MYMC2LL/A/beats-flex-all-day-wireless-earphones-beats-blackRead 16 October 2026Footnote 1: iOS and iPadOS 14 or later, macOS 11 or later, watchOS 7 or later and tvOS 14 or later. The Beats page also says Android compatible. iPadOS is stored under iOS. watchOS and tvOS have no platform option.
Android, iOS, Windows, macOS1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Individual Bluetooth setup chapters explicitly name Android, iPhone, Windows and Mac. No console path inferred.
Connection per platform
ABeats Flex
PlatformConnection
iOSBluetooth
macOSBluetooth
AndroidBluetooth
Source3Owner's manualsupport.apple.com/guide/beats/use-beatsflex-deva89e6d1be/webRead 16 October 2026The guide covers pairing Beats Flex with an Apple or Android device. Microphone support per platform is not stated.
BSony WH-CH520
PlatformConnectionMicrophone works
AndroidBluetoothYes
iOSBluetoothYes
WindowsBluetoothYes
macOSBluetoothYes
Source15Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 7 October 2026Exact manual Android and iPhone pairing chapters, call chapters pages 71-76, and computer video-call page 77 naming Windows 10, Windows 11 and Mac. Music uses A2DP. Calls use HFP or HSP with supported host and app selection. Some video apps may not expose the correct microphone profile. USB audio excluded.
Official licence
Not available
Not available

Battery and charging

6 of 13 differ
Battery capacity
Not available
Not available
Swappable battery
Not available
Not available
Batteries included
Not available
Not available
Claimed battery life
ABeats Flex
ConnectionANCCodecHours (h)
BluetoothNoAAC12
Source2Maker product pageapple.com/shop/product/MYMC2LL/A/beats-flex-all-day-wireless-earphones-beats-blackRead 16 October 2026Footnote 2: up to 12 hours of total listening time at 50 percent volume with 256 kbps AAC tracks. Apple tested preproduction earbuds with prerelease software. Codec stored as AAC.4Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 16 October 2026Beats Flex provide up to 12 hours of playback after a full charge. Apple notes that battery life depends on device settings, environment and usage.
BSony WH-CH520
ConnectionHours (h)
Bluetooth50
Source2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 17: AAC continuous music 50 h. SBC 45 h is left in notes because table has no codec column. EQ and DSEE shorten runtime. Call 40 h is not playback. ANC not applicable and omitted.
Battery life (claimed, max)
12h
50h
Battery life with ANC (claimed)
Not available
Not available
Battery life without ANC (claimed)
12h
Not available
Charging port
USB-C1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: USB-C charge connector (included).
USB-C1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Charging, pages 15-16: supplied USB-A to USB-C cable.
Full charge time
Not available
180min1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Charging, pages 15-16: approximate time explicitly defined as empty battery to full capacity. Hours converted to minutes.
Quick charge time
10min1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: With Fast Fuel, a 10-minute charge gives 1.5 hours of playback when battery is low.4Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 16 October 2026A 10-minute charge provides up to 1.5 hours of playback.
3min2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 17: 3 minutes charging.
Quick charge playback
1.5h1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: With Fast Fuel, a 10-minute charge gives 1.5 hours of playback when battery is low.4Owner's manualsupport.apple.com/guide/beats/about-charging-and-playback-time-devc8a939c17/webRead 16 October 2026A 10-minute charge provides up to 1.5 hours of playback.
1.5h2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 17: about 1.5 h music playback after 3 minutes. Codec unspecified.
Use while charging
Not available
No1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Charging, pages 15-16: connecting USB power turns the headset off and prevents music playback. Passive cable use is not claimed here.
Charging dock or stand
Not available
Not available

Controls

1 of 6 differ
Controls
Buttons3Owner's manualsupport.apple.com/guide/beats/use-beatsflex-deva89e6d1be/webRead 16 October 2026Physical button on the left control module plays, pauses and skips. Power button on the right control module. Volume buttons on the left module.
Buttons2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Pages 9-10 parts list and playback chapter: three multifunction volume/playback/power buttons.
Volume control
Buttons3Owner's manualsupport.apple.com/guide/beats/use-beatsflex-deva89e6d1be/webRead 16 October 2026Press or press and hold the upper or lower part of the volume button on the left control module.
Buttons2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Pages 9-10 volume +/- buttons.
Game and chat mix
Not available
Not available
Remappable controls
Not available
Not available
Wear detection
Not available
Not available
Voice assistant
Siri, Google Assistant3Owner's manualsupport.apple.com/guide/beats/use-beatsflex-deva89e6d1be/webRead 16 October 2026Press and hold the button to use Siri or another voice assistant. SoundGuys names Siri and Google Assistant.10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: voice assistant support Siri and Google Assistant.
Google app, Siri5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Footnote 2: press play/call button to activate Google or Siri, not wake-word activation.

Comfort and build

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Headband type
Not available
Padded5Press releasesony.co.uk/presscentre/sony-announces-two-new-headphone-models-the-wh-ch720n-over-ear-and-wh-ch520-on-ear-wireless-headphonesRead 5 October 2026Comfort: adjustable headband with padding.
Headband material
Not available
Not available
Frame material
Nitinol1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: Flex-Form cable with durable Nitinol construction. The cable forms the neckband.
Not available
Ear cup material
Not available
Plastic8Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Construction section: plastic shells.
Ear pad material
Not available
Not available
Replaceable ear pads
Not available
Yes8Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Photo caption explicitly says detachable and replaceable cushions. Attachment not inferred.
Ear pad attachment
Not available
Not available
Ear pad opening
Not available
Not available
Ear tips included
S, M, L, Double-flanged10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table: S, M, L and double-flanged silicone tips. Apple says four size options.
Not available
Dust and water rating
Not available
Not available
User-replaceable parts
Ear tips12Reviewmacrumors.com/review/beats-flexRead 16 October 2026The eartips are easy to swap out. Replacement beyond the four supplied sizes is not documented.
Ear pads20Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 7 October 2026Construction photo caption explicitly states the ear cushions are detachable and replaceable. Existing earpad_replaceable true has the same evidence. Attachment mechanism and manufacturer spare-part availability not inferred.

Software

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Companion app
Beats app for Android10Reviewsoundguys.com/product/beats-flexRead 16 October 2026Spec table lists a companion app for iOS and Android. Apple's guide and MacRumors only name the Beats app for Android, which is stored.12Reviewmacrumors.com/review/beats-flexRead 16 October 2026The Beats app for Android gives quick pairing, firmware updates, product details and battery level. Apple has no Beats Flex app for iOS.
Sony | Sound Connect1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026App chapter page 84. Headphones Connect was renamed Sound Connect in October 2024, as shown on the current guide landing page or maker product page.6Maker product pagesony.co.uk/headphones/products/wh-ch520Read 5 October 2026Current product EQ features name Sony Sound Connect.
App platforms
Android12Reviewmacrumors.com/review/beats-flexRead 16 October 2026Beats app is for Android only.
Android, iOS1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Installing the app chapter: Google Play and Apple App Store smartphone apps.
User firmware updates
Yes5Owner's manualsupport.apple.com/guide/beats/update-beats-dev3381eab1b/webRead 16 October 2026The Update Beats guide covers Beats Flex. Firmware installs over the air while the earphones charge near an Apple or Android device, and the Beats app for Android can update manually.
Yes1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026App capabilities page 84: update headset software.

Dimensions and weight

1 of 2 differ
Headset weight
18.6g(0.7 oz)1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text: Weight 18.6 g / 0.66 oz. Cable and earbuds are one fixed unit.
147g(5.2 oz)1Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Specifications: approximate published mass. Detachable cable inclusion is not stated in this guide.
Headset dimensions
Not available
Not available

Certifications

0 of 3 differ
Hi-Res Audio
Not available
Not available
Communication certifications
Not available
Not available
FCC ID
Not available
AK8YY295816Regulatory filingfccid.io/AK8YY2958/Letter/Charge-Mode-Letter-6126147.pdfRead 7 October 2026Original Sony Charge Mode Letter, independently downloaded from public FCCID archive. Subject explicitly names FCC ID AK8YY2958. Maker manual and photographed retail-unit label identify model YY2958 as WH-CH520. Original fcc.report mirror returned 403 during verification. No battery capacity inferred.
Other certifications
Not available
Not available

In the box

2 of 3 differ
In the box
Beats Flex Wireless Earbuds, Eartips with four size options, USB-C charge connector, Quick start guide, Warranty card1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026Page text lists the earbuds, eartips with four size options, USB-C charge connector, quick start guide and warranty card.
Wireless Stereo Headset, USB Type-C cable (USB-A to USB-C)2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 8 package list, no headphone audio cable.
Cables included
ABeats Flex
TypeCount
USB-C charging cable1
Source1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026The in the box list names a USB-C charge connector. MacRumors describes it as a 6-inch USB-C to USB-C cable. Length is not stored because it is only given as a rounded figure.12Reviewmacrumors.com/review/beats-flexRead 16 October 2026A 6-inch USB-C to USB-C cable is included. Length is only a rounded figure and is not stored.
BSony WH-CH520
TypeLength (m)Count
USB-A to USB-C charging cable0.21
Source2Owner's manualhelpguide.sony.net/mdr/2958/v1/en/print.pdfRead 5 October 2026Page 8: one USB-A to USB-C cable, approximate 20 cm.
Carrying case
None1Maker product pagebeatsbydre.com/earbuds/beats-flexRead 16 October 2026No case or pouch is in the in the box list. Tom's Guide also notes that a pouch is missing.
None7Reviewlesnumeriques.com/casque-nomade/sony-wh-ch520-p73092/test.htmlRead 5 October 2026Technical characteristics/Construction: Housse de protection fournie=Non, explicitly no supplied protective bag.

Warranty

1 of 1 differ
Manufacturer warranty (source market)
Not available
1year11Retailer pagebhphotovideo.com/c/product/1754496-REG/sony_whch520_b_wireless_on_ear_headphones_with.htmlRead 7 October 2026Exact US WHCH520/B Items Included states Limited 1-Year Manufacturer Warranty. Scope is the original US manufacturer term stated by this dealer. Statutory rights and paid plans are separate. Current official Sony warranty PDF was inaccessible. No contrary exact term proved.

Both are also in the API. Back to all headsets and headphones.