Nike+ SportWatch GPS

The digital watch keeps track of calories burned, pace and distance just like the exercise machine at the gym, but it will also — crucially — remind you when it’s time to run.
While you’re out, it will offer motivation to keep you going. And once you get back, a web-based interface uses the data from the built-in TomTom GPS sensor to show you on a map where you’ve been. You can also see your performance in various graphs and charts and set goals for the next go, if you’re so inclined.