Strava Relative Effort

Get street cred for your sweat. The Strava real-time Relative Effort app analyzes your heart rate during a workout and ranks your total activity effort. The deeper you dig and the longer you hold, the higher your Relative Effort. Relative Effort requires a built-in optical heart rate sensor or a paired heart rate monitor. Be sure your Garmin and Strava heart rate zones are the same.

- Computing Relative Effort