Starting an Activity

When you start an activity, GPS turns on automatically (if required).

Press START.
Select an activity.

NOTE: Activities set as favorites appear first in the list (Customizing Your Activity List).
If the activity requires GPS signals, go outside to an area with a clear view of the sky.

TIP: If appears in gray text or on a gray background, the activity does not require GPS signals.
Wait until Ready appears on the screen.

The device is ready after it establishes your heart rate, acquires GPS signals (if required), and connects to your wireless sensors (if required).
Press START to start the activity timer.

The device records activity data only while the activity timer is running.

NOTE: On a Forerunner^® 645 Music, hold DOWN while in an activity to open the music controls (Music Playback Controls).

Forerunner® 645/645 Music