With a crisp, hi-resolution display, intuitive easy-to-use interface, & smaller size, the Run Trainer 2.0 is a watch you’ll love to wear. With 50M water resistance, vibrating pace & hydration alerts, & interval timers, you get the reliability you need from a training partner. After the run, an easy-sync with your PC or Mac means that you can review maps, graphs & charts, so you can savor your accomplishments. Comes supplied with heart rate sensor.