I never get a high aerbobic load, but i am a 100% shure i am in that heart rate zone most of the times. it used to be the fullest bar on my watch, but since half a year or maybe even a year i can't get it filled up in any way (i also bought a garmin edge 830 around that time and linked it to this account, don't know if that has anything to do with it. Does anybody know why this is happening?
Garmin watch: FR 745 shows:
Couple of the trainings in the last 2/3 weeks:
Cycling training1
Cycling training 2
A bootcamp training were connect garmin shows i was in high aerobic
Watch settings: