Most GPS watches today have settings that allow you to customize your distance measured or to provide you with the distance covered and the distance remaining to an end point. This is more relevant in say a golf watch. An example of this is the Garmin S2 Approach golf watch that comes with a high-sensitivity GPS receiver giving precise yardage to the front, back and middle of greens. The S2 has the ability to measure shot distances and a course odometer.