I have the 1040 and I had the Fenix 6x Pro Solar Edition until a few days ago. The devices, the app, and the web would report different max HR. So I sold the Fenix to ensure the Fenix was not causing the problem.
I worked out and a new Max HR and Lactate Threshold were detected to be 170 and 158 respectively.
My workout zones are set to be % of Lactate Threshold.
I did an indoor ride this evening and Do these heart rate zones look correct? If my max HR is 170, how is Zone 3 set to 163bpm - 171bpm if my max HR is 170?
I can't seem to get Garmin devices to cooperate.