Sharpen your cycling performance with Edge 500, a lightweight GPS-based cycling computer for performance-driven cyclists. Loaded with data, Edge 500 tracks your distance, speed, location & elevation with high sensitivity GPS. Add an ANT+ compatible heart rate monitor, speed/cadence sensor or compatible power meter for a finely-tuned analysis of your ride. Small & lightweight high-sensitivity GPS bike computer Tracks your speed, distance, position, altitude, climb & descent & heart rate Provides advanced heart rate-based calorie computation for an accurate picture of energy used Training features include Courses to race against previous activities, Auto Lap, Auto Pause & temperature readings For extra-precise climb & descent data, Edge 500s barometric altimeter pinpoints changes in elevation.