So iv'e had my fenix 5 for 2 days now and everything seemed to be working fine until I went on a 30 mile bike ride today and it calculated over 6000 calories burned. Any ideas?
I haven't noticed this with my 5x yet but with my f3hr, sometimes the HR detected would be like something crazy like 240 for an extended period, which causes the calories to be just as inaccurate. Check the history for your HR and see if it is abnormally high.