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Sony LinkBuds S

Choose LinkBuds S over LinkBuds Fit for longer battery and a lower Sony Store price; Fit's gains are the V2 chip and a bigger 8.4 mm driver.

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In short

Choose LinkBuds S over LinkBuds Fit for longer battery and a lower Sony Store price; Fit's gains are the V2 chip and a bigger 8.4 mm driver. The 4.8 g buds cancel noise, stream LDAC and LC3, connect to two devices at once and are IPX4. Sony rates them for 6 hours with noise cancelling on, 9 off and 20 with the case. Skip them if you want wireless charging or open-ear buds.

Who it is for

  • Commuters who want small, light noise-cancelling buds that switch between noise cancelling and Ambient Sound on their own.
  • Listeners who want LDAC and LE Audio in one small pair.
  • People who juggle a phone and a PC. Multipoint holds both connections, and Swift Pair speeds up pairing with the PC.
  • Shoppers who care what their gadgets are made of. The Earth Blue finish uses recycled material from collected water-server bottles.

Who should skip it

  • Buyers who want Sony's newer sealed LinkBuds. LinkBuds Fit moves to the V2 chip, an 8.4 mm driver and Bluetooth 5.3, at the cost of some battery.
  • Open-ear listeners. LinkBuds Open is Sony's open-ear model.
  • Anyone who wants to drop the case on a wireless charger. It charges over USB-C only.

What sets it apart

  • Longer battery than LinkBuds Fit: up to 6 hours with noise cancelling on and 9 off, against 5.5 and 8.
  • Light buds at 4.8 g each.
  • Integrated Processor V1, the chip Sony also uses in WF-1000XM4, behind the noise cancelling and Ambient Sound.

Caveats

  • Talk time is 3.5 hours, with noise cancelling on or off.
  • Sony gives no case weight or size, and no figure for what a quick charge buys.

Key specs

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

Sony LinkBuds S — key specs
SpecValueSource and notes
Form factorClosed (sealed) dynamic in-ear with an ergonomic surface designSony Japan LinkBuds S specifications and product page
Fit / tips / wingsHybrid tips in SS, S, M and LL (2 of each) in the box; a fit test helps pick a sizeSony Japan LinkBuds S product page
Driver / acoustic architecture5 mm driver with a high-magnetism neodymium magnetSony Japan LinkBuds S specifications
Chip / processorIntegrated Processor V1, as in WF-1000XM4; not V2 or QN3eSony Japan LinkBuds S product page
Active noise cancellationHigh-performance noise cancelling with a wind-noise reduction structure; Adaptive Sound Control switches between noise cancelling and Ambient SoundSony Japan LinkBuds S product page and specificationsNo decibel figure from Sony.
Transparency / ambientAmbient Sound; Sony says it lets in more outside sound than an earlier modelSony Japan LinkBuds S product page
Spatial / 360 audioPitched as suited to spatial audio; no 360 Reality Audio certification listedSony Japan LinkBuds S product page
Hearing featuresNone listedSony Japan LinkBuds S specifications and product page
Battery — budsMusic: up to 6 hours (noise cancelling on) or 9 (off). Talk: up to 3.5 hours either way. Standby: up to 8.5 hours (on) or 16 (off)Sony Japan LinkBuds S specifications
Battery — with caseUp to 20 hours with noise cancelling on, counting case recharges (Sony's footnote 1: AAC, DSEE Extreme and EQ off, other settings at default)Sony Japan LinkBuds S product page
ChargingUSB-C through the case; USB-A to USB-C cable in the box. Quick charging is named, with no figure for a 5- or 10-minute chargeSony Japan LinkBuds S specifications and product page
Wireless chargingNo; the case charges over USBSony Japan LinkBuds S specifications
Water / dust — budsIPX4 drip resistance (asterisked by Sony)Sony Japan LinkBuds S product pageA splash rating, not a swimming one.
Water / dust — caseNo ratingSony Japan LinkBuds S specifications
BluetoothBluetooth 5.2, Power Class 1, up to 10 m; 2.4 GHz band (2.4000–2.4835 GHz); A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP and CCP profiles; SCMS-TSony Japan LinkBuds S specifications
CodecsSBC, AAC, LDAC, LC3Sony Japan LinkBuds S specifications
Microphones / callsMEMS omnidirectional microphones; Sony promises high-precision voice pickupSony Japan LinkBuds S specifications and product page
On-bud controlsQuick Access; wear detection pauses playback when a bud comes out; single-bud useSony Japan LinkBuds S product page
Multipoint / device switchingYes: two devices at once; Sony advertises pairing across Android, iPhone and PCSony Japan LinkBuds S product page
SensorsWear detection; Adaptive Sound Control reacts to your activity and places you visit oftenSony Japan LinkBuds S product page
Weight — one budAbout 4.8 g × 2Sony Japan LinkBuds S specifications
FinishesWhite, black, ecru, earth blueSony Japan LinkBuds S product page
Phone / OS compatibilityBluetooth devices; Sony Sound Connect app (formerly Headphones Connect); Swift Pair for PCs; LE AudioSony Japan LinkBuds S product page
Find / Fast Pair / UWBFind Device and Swift Pair; Google Fast Pair not named; no ultra-widebandSony Japan LinkBuds S product page
Companion app / firmwareSony Sound Connect (formerly Headphones Connect); DSEE Extreme is switched on in the appSony Japan LinkBuds S product page
US launch priceNo US price from Sony; an open price (no list price) in Japan, where Sony Store Japan charged ¥26,400 including tax (19 September 2026)Sony Japan LinkBuds S product page and Sony Store Japan
Price bandMidrange sealed LinkBuds (priced in yen; no US list price)Based on the Sony Store Japan price of ¥26,400
AvailabilityOn sale at Sony Store Japan for ¥26,400 including tax (19 September 2026); the older model next to LinkBuds FitSony Japan LinkBuds S pages and Sony Store Japan

Sony LinkBuds S extras

Specs only this model has.

Sony LinkBuds S extras
SpecValueSource and notes
Integrated Processor V1The same V1 chip Sony uses in WF-1000XM4; LinkBuds Fit moved to V2Sony Japan LinkBuds S product page
DSEE ExtremeYes, switched on in the Sound Connect app (formerly Headphones Connect)Sony Japan LinkBuds S product page
Adaptive Sound ControlSwitches between noise cancelling and Ambient Sound by activity and the places you visit oftenSony Japan LinkBuds S product page
LE AudioYes: LC3 codec plus TMAP, CSIP, MCP, VCP and CCP profilesSony Japan LinkBuds S product page and specifications
In the boxHybrid tips in SS, S, M and LL (2 of each); charging case; USB-A to USB-C cable; warrantySony Japan LinkBuds S product page
Earth Blue recycled materialEarth Blue uses recycled material from collected water-server bottles in the buds and case; the other colors use recycled material in part of the exteriorSony Japan LinkBuds S product page
Sony Store Japan price¥26,400 including tax (19 September 2026)Sony Store Japan

LinkBuds S or LinkBuds Fit?

LinkBuds Fit is the newer sealed LinkBuds, and Sony’s Japanese store sells both. Here’s how they differ:

SpecLinkBuds SLinkBuds Fit
ProcessorIntegrated Processor V1V2
Driver5 mm8.4 mm
Bluetooth5.25.3
Music, noise cancelling onUp to 6 hoursUp to 5.5 hours
Music, noise cancelling offUp to 9 hoursUp to 8 hours
With the caseUp to 20 hours (noise cancelling on)No figure from Sony
Sony Store Japan¥26,400¥29,700

Fit moves from the XM4-era V1 chip to V2 and from a 5 mm driver to 8.4 mm. LinkBuds S plays half an hour to an hour longer per charge, depending on noise cancelling, and costs less at Sony’s own store. Pick Fit for the newer hardware and S for battery and price. If you’d rather keep your ears open, LinkBuds Open is the other route.

Noise cancelling and Ambient Sound

The noise cancelling runs on Integrated Processor V1 and gets help from a structure Sony designed to cut wind noise. Ambient Sound lets in more outside sound than an earlier Sony model did, Sony says, and Adaptive Sound Control flips between the two modes based on what you’re doing and the places you go often. DSEE Extreme is a switch in the Sound Connect app.

Sony pitches LinkBuds S as suited to spatial audio but lists no 360 Reality Audio certification.

Charging

Sony’s 20-hour figure counts recharges from the case and was measured over AAC with DSEE Extreme and EQ off. On standby the buds last up to 8.5 hours with noise cancelling on, or 16 with it off. The case charges over USB-C, with a USB-A to USB-C cable in the box.

Fit and controls

The hybrid tips come in SS, S, M and LL, two pairs of each, and a fit test helps you settle on a size. Sony describes an ergonomic surface design. Quick Access is built in, wear detection pauses playback when you take a bud out, and you can listen with a single bud. The buds carry an IPX4 drip-resistance rating, which Sony qualifies with an asterisk.

Connections and calls

Bluetooth 5.2 is Power Class 1, with a range of about 10 m, and alongside LDAC and LC3 it carries the TMAP, CSIP, MCP, VCP and CCP profiles that LE Audio uses. Find Device is built in. For calls, MEMS omnidirectional microphones handle what Sony calls high-precision voice pickup.

Price and colors

Sony gives LinkBuds S no list price in Japan, where it’s sold at an open price, and Sony Store Japan charged ¥26,400 including tax on 19 September 2026. There’s no US price from Sony, so check what US retailers charge before you buy.

It comes in white, black, ecru and earth blue. The Earth Blue pair uses recycled material from collected water-server bottles in the buds and case, and the other colors use some recycled material in the exterior.

Sources

Frequently asked questions

Is WF-LS900N the same as LinkBuds S?

Yes. WF-LS900N is the model number Sony used for LinkBuds S, and Sony Japan now sells it simply as LinkBuds S.

Does LinkBuds S support LDAC and LE Audio?

Yes to both. It lists LDAC and LC3 alongside SBC and AAC, and Sony names LE Audio support.

Can I use LinkBuds S with an iPhone?

Yes. Sony advertises pairing with Android phones, iPhone and PCs.

Can I swim with LinkBuds S?

No. IPX4 covers splashes, not swimming, and it applies to the buds only; the case has no rating.

Official product page: Sony LinkBuds S. Tech specs: Sony LinkBuds S specs.