Garmin HRM-Run -
Pair your compatible Forerunner 620 with the Garmin HRM-Run to get not only heart rate information but also real-time feedback about your running form.
- Ground contact time — the amount of time in each step that you spend on the ground while running. It is measured in milliseconds
- Cadence — the number of steps per minute. It displays the total steps (right and left combined)
- Vertical oscillation — the bounce in your running motion. It displays the vertical motion of your torso, measured in centimeters