Garmin Running Dynamics Pod Fitness Tracker Computes and sends 6 running dynamics metrics (cadence, stride length, ground contact time, ground contact time balance, vertical ratio and vertical oscillation) to your compatible device1 Battery life: replaceable battery lasts up to 1 year (assuming 1 hour of daily use) Automatically turns itself on and off Small size and less than 12 g, so you hardly feel it's there Compatible devices1 connect2 with the Garmin Connect Mobile app to automatically sync your data and connect with others Needs to be attached to the running trousers1 Compatible with Forerunner 935/735XT, the fenix 5 series and fenix Chronos
2 When paired with a compatible smartphone.