Garmin Edge 850 GPS Cycling ComputerThe Edge 850 is a compact GPS cycling computer that uses a bright, color touchscreen display and physical buttons to give you all the insights, guidance, and fueling advice you need to perform at your best. To access some of the more advanced training and performance features, you'll need to use a compatible heart rate monitor, a power meter, or both. ALERT RIDERS AND PEDESTRIANS WITH AN ON DEVICE BIKE BELL STAY CONNECTED AND COMPETITIVE WITH THE