The SG20 Arrow is the first wearable for your snowboard. It helps you improve your riding performance, allows you to learn directly from the pros, and engage your friends in riding contests. The Arrow continuously measures speed, acceleration, rotation, vibration, snow temperature, board attitude, and G forces. It transforms this data into usable information and sends it to your Bracelet. It also maps out the challenges on the slopes and shares the info with all the other users via the SG20 server.