Sony LinkBuds Fit (WF-LS910N) / Samsung Galaxy Buds FE

Sony LinkBuds Fit (WF-LS910N): LinkBuds Fit WF-LS910N in-ear true wireless earbuds; black, white, green and pink. The open-design LinkBuds Open (WF-L910) and the older LinkBuds S (WF-LS900N) are separate models.

Samsung Galaxy Buds FE: Galaxy Buds FE (SM-R400); Graphite or White. The Galaxy Buds3 FE released in 2025 is a separate product.

SpecificationSony LinkBuds Fit (WF-LS910N)Samsung Galaxy Buds FE
Release year20242023
Driver and frequency8.4 mm driver; closed type; 20–20,000 Hz over Bluetooth (44.1 kHz), 20–40,000 Hz with LDAC (96 kHz, 990 kbps) Sony—
Noise cancellingActive noise cancelling; Personal NC Optimiser; Ambient Sound Mode and Auto Ambient Sound

Personal NC Optimiser tunes cancellation to the ear shape and how the buds are worn. Auto Ambient Sound changes how much outside sound is let in depending on the surroundings.

Sony		—
Bluetooth and codecsBluetooth 5.3; SBC, AAC, LDAC, LC3; A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP

LC3 and profiles such as TMAP/CSIP are for Bluetooth LE Audio, enabling lower-power audio on compatible phones. LDAC is used on Android for high-bitrate streaming; iPhones use AAC.

Sony		—
Multipoint and processingMultipoint connection (two devices); DSEE Extreme

DSEE Extreme tries to restore high-frequency detail lost in compressed music files.

Sony		—
BatteryEarbuds: up to 5.5 hours of music with ANC on and 8 hours off; up to 4 hours of calls; earbud charge about 2 hours, case charge about 3 hours (USB) SonyEarbud 60 mAh, case 479 mAh (typical); 6 hours with ANC on (21 hours with case), 8.5 hours with ANC off (30 hours with case); talk time 3.5 hours with ANC on

The case does not support wireless charging; it charges over a USB-C cable.

Samsung
FitNewly designed Fitting Supporters and ear tips

The soft supporter fin rests against the ear’s ridge to help keep the bud in place while moving.

Sony		3 sizes of ear tips and 2 sizes of wingtips

Wingtips grip the ear to help the buds stay in place during exercise.

Samsung
Weight and durabilityAbout 4.9 g each (with M tips); case about 41 g, 47.2 × 47.2 × 32.6 mm; IPX4

IPX4 means resistance to splashing water from any direction; it is not for submersion or swimming.

Sony		—
Driver and sound—1-way speaker; Scalable (Samsung proprietary), AAC and SBC codecs

The Scalable codec is Samsung’s codec that adjusts bitrate to connection quality and works with Galaxy devices; other phones use AAC or SBC. The high-resolution SSC Hi-Fi codec is not supported.

Samsung
Noise cancellation—Active Noise Cancellation (ANC) and Ambient Sound

ANC picks up outside sound with microphones and suppresses it with an inverse wave; Ambient Sound lets outside sound in so you can hear without removing the buds.

Samsung
Microphones—3 microphones per earbud (2 outer + 1 inner)

Samsung says automatic personalized beamforming and a DNN separate speech from background noise.

Samsung
Connectivity—Bluetooth 5.2; Auto Switch, SmartThings Find

Auto Switch moves audio automatically between Galaxy phones, tablets and watches on the same Samsung account. SmartThings Find shows the buds’ last location.

Samsung
Sensors—Proximity, Hall, touch

The proximity sensor pauses music when a bud is removed; the touch surface controls playback and modes.

Samsung
Compatibility—Android 8.0 or later with more than 1.5 GB of RAM

Some features do not work on non-Samsung devices.

Samsung
Size and weight—Earbud 17.1 × 19.2 × 22.2 mm, 5.6 g; case 50.0 × 27.7 × 50.0 mm, 40.0 g Samsung