Marianne v
Can I change the Battery my self? What's the Battery life?
ALEX S
This watch has a built in rechargeable battery so there is no battery replacement. The battery life depends on the function you are using. When the watch is not using GPS it lasts about 14 full days. If the GPS function is being used it depending on the setting. On high meaning sending a GPS signal every second the watch lasts around 10 hours.