Earbuds · Model guide · Maker specs

Sony WF-C510

Get the WF-C510 if you want small, simple Sony earbuds without noise cancelling; the C710N adds it, plus IPX4 and a 30-hour case.

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In short

Get the WF-C510 if you want small, simple Sony earbuds without noise cancelling; the C710N adds it, plus IPX4 and a 30-hour case. Each bud weighs about 4.6 g, and Sony rates them for 11 hours with Ambient Sound off and about 22 with the case. You still get Ambient Sound and multipoint, but no USB-C cable in the box.

Who it is for

  • First-time buyers who want a small, light fit. Sony calls the C510 its smallest sealed earbuds, and each bud weighs about 4.6 g with the medium tips.
  • People who walk city streets and want to hear traffic and announcements. Ambient Sound, which the WF-C500 didn't have, switches on and off from the bud.
  • People who switch between a phone and a Windows laptop. Multipoint keeps both connected, and Swift Pair handles pairing with the PC.

Who should skip it

  • Commuters and flyers who want quiet. The C510 has no noise cancelling; Sony's C710N adds it with Dual Noise Sensor and runs 8.5 hours on the buds.
  • Listeners who stream high-resolution audio. The C510 sticks to SBC and AAC, with no LDAC.
  • Android users who want Google Fast Pair. The C510 offers Swift Pair for Windows PCs instead; the C710N has Fast Pair.

What sets it apart

  • Ambient Sound, new since the WF-C500, with up to 8 hours of music when it's on and 11 when it's off.
  • A 6 mm driver, larger than the 5 mm units in the C710N and C700N.
  • Sony's smallest sealed earbuds, by its own claim: buds about 21% smaller and a case about 23% smaller than WF-C500's.
  • A 5-minute charge gives about 60 minutes of playback.
  • Multipoint for two devices, 360 Reality Audio certification, and DSEE in the Sound Connect app.

Caveats

  • There's no USB-C cable in the box, and the case charges only over USB, so you'll need a cable of your own.
  • Calls run up to 5 hours per charge, whether Ambient Sound is on or off.
  • Fit rests on three tip sizes, SS, M and LL; there are no wing tips to hold the buds in place on a run.

Key specs

In the same order on every earbuds page, so you can compare pairs.

Sony WF-C510 — key specs
SpecValueSource and notes
Form factorSealed in-ear; Sony calls it its smallest sealed true wireless model, compared with its earlier onesSony Japan specifications and product page
Fit / tips / wingsHybrid earpieces in SS, M and LL, 2 of each; no wing tipsSony Japan product page
Driver / acoustic architecture6 mm driverSony Japan specifications
Active noise cancellationNo; battery life is rated with Ambient Sound on and off insteadSony Japan specifications and product pageIts noise-cancelling counterpart is the C710N.
Transparency / ambientAmbient Sound, switched on and off from the buds (the WF-C500 didn't have it)Sony Japan product page
Spatial / 360 audioCertified for 360 Reality AudioSony Japan product page
Battery — budsMusic: up to 8 hours with Ambient Sound on, 11 with it off. Calls: up to 5 hours either waySony Japan specifications and product page
Battery — with caseAbout 22 hours including the case (AAC, with DSEE and EQ off and other settings at default)Sony Japan product page
ChargingUSB-C on the case, about 1.5 hours for a full charge; 5 minutes gives about 60 minutes of playback; cable not includedSony Japan specifications and product page
Wireless chargingNot listed; the case charges over USBSony Japan specifications
Water / dust — budsDrip resistant against sudden rain and sweat; no IPX number givenSony Japan product pageThe C710N, by comparison, is rated IPX4.
BluetoothBluetooth 5.3, Power Class 1Sony Japan specifications
CodecsSBC, AACSony Japan specifications
Microphones / callsHands-free calling; Sony promises long, clear calls but gives no microphone detailsSony Japan product page
On-bud controlsAmbient Sound on and off from the buds; Quick Access; full control map not givenSony Japan product page
Multipoint / device switchingYes, two devices at once; pairs with Android phones, iPhones and PCsSony Japan product page
Weight — one budAbout 4.6 g × 2 with M tipsSony Japan specifications and product page
Dimensions — one budNot given in millimeters; Sony says about 21% smaller than WF-C500Sony Japan product page
Dimensions — caseNot given in millimeters; Sony says about 23% smaller than WF-C500's caseSony Japan product page
FinishesWhite and blackSony Japan product page
Phone / OS compatibilityBluetooth earbuds for compatible devices; works with Siri and the Google app's voice assistant; Swift Pair for Windows PCsSony Japan product page
Find / Fast Pair / UWBSwift Pair only; no Fast Pair, Find Device or UWB listed for C510 (the C710N has Fast Pair)Sony Japan product page
Companion app / firmwareSony | Sound Connect, where you switch on DSEESony Japan product page
US launch priceNo US price; open price in JapanSony Japan product page
Price bandEntry-level sealed earbuds (open price in Japan)Based on Sony Japan's open price and the model's place below the C710N
AvailabilityOn sale in Japan as Sony's entry-level sealed earbuds, as of 19 September 2026Sony Japan product page

Sony WF-C510 extras

Specs only this model has.

Sony WF-C510 extras
SpecValueSource and notes
Versus WF-C500Buds about 21% smaller, case about 23% smaller, longer battery, and Ambient Sound, which the C500 lacked (Sony's claims)Sony Japan product page
DSEEYes, switched on in Sound ConnectSony Japan product page
USB cableNot included; use your own USB-C cableSony Japan product page
In the boxCharging case; hybrid earpieces in SS, M and LL (2 of each); no USB-C cableSony Japan product page
Recycled materialRecycled material in part of the headset bodySony Japan product page

What you give up against the C710N

SpecWF-C510C710N
Noise cancellingNo; Ambient Sound onlyYes, with Dual Noise Sensor
Battery, buds8 hours with Ambient Sound on, 11 off8.5 hours
With the caseAbout 22 hours30 hours
WaterDrip resistant, no IPX numberIPX4
Driver6 mm5 mm
Google Fast PairNoYes
USB-C cable in the boxNoYes

Noise cancelling is the real dividing line. If your day includes a train, a bus or a plane, the C710N is worth the step up, and the IPX4 rating, Fast Pair and the bigger case come with it. If you mostly listen at home or on walks, the C510 gives you Sony’s smallest sealed earbuds and the larger driver for less.

Battery and charging

ModeWF-C510
Music, Ambient Sound onUp to 8 hours
Music, Ambient Sound offUp to 11 hours
CallsUp to 5 hours
With the caseAbout 22 hours
Quick charge5 minutes for about 60 minutes
Full chargeAbout 1.5 hours

Leaving Ambient Sound on costs about three hours of music per charge, 8 against 11. Sony’s 22-hour total with the case assumes AAC, with DSEE and EQ switched off.

Price and colors

Sony sells the C510 at an open price in Japan, so there’s no Sony list price in yen or dollars, and what you pay depends on the retailer. Compare a couple of stores before you buy. It comes in white or black, and Sony says part of the headset body uses recycled material.

Sources

Frequently asked questions

Does the WF-C510 have noise cancelling?

No. It has Ambient Sound, which lets the world in, but nothing that actively cuts noise out. Its noise-cancelling counterpart is the C710N.

Is the WF-C510 sweatproof?

Not officially. Sony calls the buds drip resistant against sudden rain and sweat but gives no IPX number. If you train hard, the C710N's IPX4 rating is the clearer promise.

Does the WF-C510 work with an iPhone?

Yes. Sony lists Android phones, iPhones and PCs, the buds work with Siri, and multipoint can keep an iPhone and a laptop connected at the same time.

How is it different from the WF-C500?

It's smaller and adds Ambient Sound. Sony says the buds are about 21% smaller and the case about 23% smaller, and that the battery lasts longer than the C500's.

Official product page: Sony WF-C510. Tech specs: Sony WF-C510 specs.