Enhance your triathlon experience by pairing HRM-Tri with any compatible Garmin wearable. The HRM-Tri stores heart rate data when underwater, then forwards it to your wearable at the end of your swim. Our smallest and lightest heart rate monitoring module fits within the width of the strap. The strap's soft, rounded edges and covered seams make the strap it super-comfortable out of the water, too.

Extensive Running Dynamics

When running, this pairing allows your compatible wearable to report 6 running dynamics metrics: cadence, stride length, ground contact time, ground contact time balance, vertical oscillation and vertical ratio.

Example of Typical Uses

HRM-Tri HRM-Swim Bike rides, runs, bricks Pool swims Open water swims Open water swims Triathlon competition (open water swim) Triathlon competition (pool swim), triathlon kit not required Triathlon competition (with pool swim) while wearing triathlon kit Runs or bike rides as part of a multi-sport activity that includes a pool swim

¹Forerunner 920XT/735, epix™, fēnix® 3/3 HR