The Navman X300 provides outdoor sports enthusiasts with a tool they can use to accurately measure their performance and make their workouts more efficient and effective. The X300 is worn comfortably around the arm and its display is large and easy-to-read, unlike most pedometers or bicycle computers which are tiny difficult to read. The X300 keeps track of vital and useful information including: current speed, current pace, average speed, distance traveled, maximum speed, lap distance, lap time, even current altitude. The X300 also records up to 50 lap times and stores them so you can measure improvement and progress. It also shows the date, time and can show speed in MPH or KPH. The Navman works by using the latest GPS (Global Positioning System) technology to take its measurements and is far more accurate than other means of measurement. The Navman features simple set up process with quick and easy operation, just walk outside and turn it on, the Navman gets all its information on its own, you don't need to input anything yourself! This is a far simpler process than the ones used to set up cumbersome and clunky bicycle computers, pedometers and heart rate monitors. The Navman X300 is a powerful tool that enables you to get much more out of your workout.