Forerunner

The Garmin Forerunner is a series of
sports watches made by Garmin. Most models use the Global Positioning System (GPS), and are targeted at road runners and triathletes. The GPS models are designed as an accurate method of measuring distance, speed, heart rate (optional), time, altitude, and pace, all of which can be important to athletes in training for races (by creating logs or navigating new workouts).

The Garmin Forerunner can be used to record historical data by completing a work out and then uploading the data to a computer to create a log of previous exercise activities for analysis.
 
Additionally, the Garmin Forerunner can be used to navigate during a workout. Users can "mark" their current location and then edit this entry's name and coordinates, which enables navigation to those new coordinates. These watches use the hh.mm.mmmm (hours, minutes, and minute decimals) coordinate format.