Designed specifically for triathletes, the Garmin HRM-Tri heart rate strap is comfortable and the lightest in Garmin's range.

The Garmin HRM-Tri gathers heart rate data in three disciplines - cycle, swim and run. Specifically designed for triathletes, it's Garmin's smallest and lightest heart rate monitor. The strap is comfortable and easily adjustable and stores and forwards heart rate data to Forerunner® 920XT.

Enhance your triathlon experience by pairing HRM-Tri with your Forerunner® 920XT. The HRM-Tri stores heart rate data when underwater, then forwards it to the 920XT. Our smallest and lightest module fits within the width of the strap. Its soft, rounded edges and covered seams make the strap super-comfortable out of the water, too.


Water rating: 5 ATM

ANT+® heart rate: yes

Supports heart rate variability and advanced heart rate features: yes

2.4 GHz ANT wireless communication protocol: yes

Running dynamics: yes

Stores and forwards heart rate: yes

Swim interval heart rate statistics: yes

Non-slip design for pool swimming: no

Pool chemical resistant: no


Unit dimensions (LxWxD): 23.5”-56.0” x 1.2” x 0.5” (60.0 - 142.0 x 3.0 x 1.2 cm)

Weight: 2.1 oz (59 g)

Module size: 29.4 x 51.4 x 8.5 mm

Module weight: 1.7 oz (49 g)

Size adjustment: Bi-fold

Sizing range: 23.5”-56.0” (60.0 - 142.0 cm)

Battery: CR2032

Battery life: 10 months (Tri training 1 hour per day)

What's In The Box?



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