The Garmin Forerunner 10 is the lightest GPS watch available, so it won't get on your nerves as it collects valuable training data. The forerunner 10 tracks your distance, speed, pace, and even your calories. Once you strap the Forerunner 10 to your wrist, you can start your run with the press of a button. You can watch your time and distance or, if you prefer, your pace and distance. The customizable screen displays whichever metrics you find useful during your run. It can also give you valuable info at predetermined intervals. For example, the watch will beep at each mile and tell you your time for that mile. The watch even tells you when you've reached a personal goal, such as fastest mile or longest run to date. The watch also includes a "Virtual Pacer" that compares your current pace to your running pace. There's also a run/walk feature that accounts for breaks along your run. You can also upload your runs to Garmin Connect through your computer to see your runs on a map, get more details, or share your training.