The FR601 and FR70 calculate calories based on a heart rate calculation generated by Garmin. This generic heart rate based calorie count uses the following information to determine calories:
- Heart rate2
- Activity class
1The FR60 will need to be updated to software version 2.40 or higher to use this calorie formula.
2If a heart rate monitor is not being used, the FR60 and FR70 will determine calories based on speed or pace. This will require a Garmin Speed/Cadence Sensor (GSC 10) for cycling or a Garmin Foot Pod for running/walking.