Garmin Heart Rate Monitors

Heart Rate — the Easy, Accurate Way


This premium heart rate strap transmits real-time heart rate data over ANT+® connectivity and BLUETOOTH® Low Energy technology, giving you more options to train indoors, outdoors or even online. With it, you’ll be able to consistently receive accurate heart rate on your Garmin device, in online training apps such as Zwift or even the compatible fitness equipment in your favorite class at the gym. So however you like to train, you’ll get the accurate, real-time heart rate you need to take your performance to the next level.




Garmin’s answer to the question swimmers have been asking for years, "where’s our heart rate monitor?" This monitor stores heart rate data when underwater, then forwards it to a compatible Garmin device once you're back on land. The strap is non-slip to stay in place even during wall push-offs, and is resistant to most pool chemicals.

  • Compatible with Forerunner 920XT, Fenix 3, and Epix models.
  • Hydrodynamic non-slip strap.
  • Dimensions are 58 to 145 x 3.8 x 1.2cm.
  • Sensor size is 29.4 x 51.4 x 8.5mm.
  • CR2032 battery last for 18 months if swimming 3 hours per week.
  • ANT+® heart rate.
  • Supports heart rate variability and advanced heart rate features.
  • 2.4 GHz ANT wireless communication protocol.
  • Swim interval heart rate statistics



Heart Rate Data in 3 Disciplines

  • Specifically designed for triathletes
  • Our smallest and lightest heart rate monitor (HRM)
  • Comfortable, easily adjustable strap
  • Stores and forwards heart rate data to your compatible Garmin device

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.


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