Press to turn the watch on.

Press to turn the backlight on and off.

Hold to view the controls menu for quick access to frequently used functions.

Press to scroll through the glances, data screens, options, and settings.

Hold to view the menu.

Hold to manually change sports during an activity.

Press to scroll through the glances, data screens, options, and settings.

Hold to open the music controls (Music).

Press to return to the previous screen.

Press to record a lap, rest, or transition during an activity.

You can select to discard a lap for certain activities (How can I undo a lap button press?).

Press to start and stop the activity timer.

Press to choose an option or to acknowledge a message.