From the watch face, press the button and select > Activity > Settings.

Activity Type

Allows you to change your activity type.

Auto Lap

Allows your device to mark laps automatically at a specified distance. This feature is helpful for comparing your performance over different parts of an activity (for example, every 1 mile or 5 kilometers).

TIP: You can tap Auto Lap to edit the distance.

Auto Pause

Allows your device to pause the timer automatically when you stop moving. This feature is helpful if your activity includes stop lights or other places where you must stop.

GPS

Sets the activity to use GPS satellite signals. You can turn off GPS when you are training indoors or to save battery life.