Garmin HRM-Run Black/Red

The HRM-Run heart rate monitor provides the most advanced running metrics to high-end Garmin Forerunner® running watches. The strap is seamlessly comfortable and easily adjustable while the module is small, lightweight and fits entirely within the width strap.

HRM-Run provides 6 running dynamics metrics:
Cadence — number of steps per minute

Vertical oscillation — degree of 'bounce' in your running motion; displays the vertical motion of your torso, measured in centimeters for each step

Ground contact time — amount of time in each step that you spend on the ground while running; measured in milliseconds

Ground contact time balance — displays the left/right balance of your ground contact time while running (displays a percentage); for example, 53.2 with an arrow pointing left or right

Stride length — length of your stride from 1 footfall to the next; measured in meters

Vertical ratio — ratio of vertical oscillation to stride length (displays a percentage); a lower number typically indicates better running form

This real-time data can help athletes take their performance to the next level by showing them where they can improve their running form.

Physical Specifications
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: Up to 1 year (approx. 1 hour per day)
Water rating: 5 ATM

Additional
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: no
Swim interval heart rate statistics: no
Non-slip design for pool swimming: no
Pool chemical resistant: no

Compatible Devices
fenix® 2 Special Edition
D2™ Bravo
epix™
fenix® 2
fenix® 3
fenix® 3 HR
fenix® 3 Sapphire
Forerunner® 620
Forerunner® 630
Forerunner® 735XT
Forerunner® 920XT
tactix® Bravo
VIRB® XE