TICKR is the most innovative way to train with heart rate. Whether you are working towards a PR or sweating off a huge meal, the TICKR helps you meet your objectives. Pair with the Wahoo RunFit app to make your workouts more effective using heart rate to train smartly. The TICKR monitors your heart rate and calories burned, plus range and speed when utilized with a smartphone and most popular physical fitness apps. The TICKR's double band innovation (Bluetooth 4.0/ ANT+) deals with most mobile phones and GPS gadgets, making it the ultimate heart rate display.