Forerunner Specifications

Battery type

Rechargeable, built-in lithium-ion battery

Battery life (small size)

Up to 8 wk. for low power mode and activity tracking

Up to 8 hr. for active mode

Battery life (large size)

Up to 10 wk. for low power mode and activity tracking

Up to 10 hr. for active mode

Operating temperature range

From -15º to 60ºC (from 5º to 140ºF)

Charging temperature range

From 0º to 45ºC (from 32º to 113ºF)

Radio frequency/protocol

2.4 GHz ANT‍+® wireless communications protocol

Bluetooth® Smart wireless technology

Water rating

5 ATM1

1 The device withstands pressure equivalent to a depth of 50 m. For more information, go to www.garmin.com/waterrating.
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