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.

In the Box:
- HRM-Run
- Strap Extender
- Manuals
| Physical Specifications |
| Battery life: |
Up to 1 year (approx. 1 hour per day) |
| Battery: |
CR2032 |
| 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) |
| Unit dimensions (LxWxD): |
23.5”-56.0” x 1.2” x 0.5” (60.0 - 142.0 x 3.0 x 1.2 cm) |
| Water rating: |
5 ATM |
| Weight: |
2.1 oz (59 g) |
| Additional |
| 2.4 GHz ANT wireless communication protocol: |
yes |
| Advanced heart rate features: |
yes |
| ANT+® heart rate: |
yes |
| Non-slip design for pool swimming: |
no |
| Pool chemical resistant: |
no |
| Running dynamics: |
yes |
| Stores and forwards heart rate: |
no |
| Supports heart rate variability |
yes |
| Swim interval heart rate statistics: |
no |