Select to turn the backlight on and off.

Hold to turn the device on and off or to lock the keys.

Select to start or stop an activity.

Select to choose an option in a menu.

Select to return to the previous page.

Select to record a lap or a rest during an activity.

Select to scroll through the data pages, options, messages, and settings.

Select to read a long message or notification.

Hold to mark a waypoint.

Select to scroll through the data pages, options, messages, and settings.

Select to dismiss a short message or notification.

Hold to view the main menu.