Garmin's HRM-Tri heart rate monitor strap is fashioned from a soft material and well-suited to tracking heart rate on land or during wetsuit-legal events, but we don't recommend it for pool workouts or swims without wetsuits. It runs on a standard CR2032 battery with a claimed battery life of 10 months at an average of one hour of training per day, and it transmits wirelessly to a Garmin Epix, Fenix 3, or Forerunner 920XT device.
- Garmin's smallest and lightest HRM specifically designed for triathletes
- Soft rounded edges, covered seams, and easily adjustable strap is comfortable
- Stores heart rate data when underwater, then forwards it to your watch afterwards
- When running and paired to a watch it reports cadence, stride length, ground contact time, ground contact time balance, vertical oscillation, and vertical ratio