This feature automatically detects when your device has acquired satellites and is moving. It starts the activity timer or reminds you to start the activity timer so you can record your ride data.
Select
Menu > Settings > Activity Profiles.
Select a profile.
Select
Timer Start Mode.
Select an option:
Select
Manual, and select
to start the activity timer.
Select
Prompted to display a visual reminder when you reach the start notice speed.
Select
Auto to start the activity timer automatically when you reach the start speed.