GPS-based training system for cyclists

The Edge is a compact, lightweight, waterproof unit that has the ability to accurately monitor pedalling cadence, heart rate, calories burned, vertical profiles (via a a barometric altimeter), climb and descent, altitude, speed, distance, and time. Because the Edge is GPS-based, the information may be overlaid onto a cyclist's course map, including hills and curves, so the cyclist can easily analyse every aspect of their workout.