The Wahoo RFLKT is the world's first iPhone powered bike computer! All the power of your iPhone is now in the size of a sleek cycling computer. Keep your iPhone safely tucked in your jersey pocket and access all of your app data from your handlebars. RFLKT displays GPS, heart rate, and other sensor data from your iPhone—and controls your music playback. RFLKT is compatible the NEW Wahoo Fitness v3.0 App for Cycling, and many other top rated cycling Apps, including Cyclemeter and Strava.