Specifications

Battery type

Rechargeable, built-in lithium-ion battery

Water rating

Swim, 5 ATM1

Forerunner® music media storage

Up to 4 GB (approximately 500 songs)

Operating temperature range

From -20º to 60ºC (from -4º to 140ºF)

Charging temperature range

From 0º to 45ºC (from 32º to 113ºF)

Forerunner non-music radio frequency/protocol

2.4 GHz @ 3.06 dBm maximum

Forerunner 255 Music

2.4 GHz @ 18.64 dBm maximum

Forerunner 255S Music radio frequency/protocol

2.4 GHz @ 17.67 dBm maximum

EU SAR, Forerunner 255 Music

0.48 W/kg torso, 0.47 W/kg limb

EU SAR, Forerunner 255S Music

1.57 W/kg torso, 1.03 W/kg limb

1 The device withstands pressure equivalent to a depth of 50 m. For more information, go to www.garmin.com/waterrating.
GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8 v10
September 2024