First time using the F7XSS paired to the rowing machine on Wednesday. Obeservation:
Garmin calculated 943 calories burned, compared to Concept2 PM5 calculated 1807. Note that I was wearing my Garmin HR strap (which I do for all rowing sessions, weight training, and HIIT workouts) and was paired to both the FENIX7 and the Concept2 ERG. Average heart rate was within 3bpm between Garmin and Concept2 for the duration of the row, yet Garmin FENIX 7 estimates half the calories burned.
All other metrics collected by the FENIX7 were accurate, to include stroke rate, distance covered, 500m split pace, and power. Attached image is the same rowing session from each data source (Garmin FENIX7 on left | Concept2 PM5 on right).
Anyone else noticing this with fitness equipment paired directly to the watch?