The Polar M400 Sports Watch with GPS & Heart Rate Monitor includes a wrist-worn fitness watch designed to help track and enhance your running performance. It tracks your pace, distance, and altitude with its built-in GPS. You can follow your daily activity, calories burned and amount of steps taken. You can also use the Polar Flow web service and the downloadable mobile app to plan, sync, and share your training. In addition to the M400 watch, this bundle includes a chest-worn Polar H7 heart rate monitor that allows you to see your heart rate data to enhance your performance and help you reach your fitness goals.