Because I wanted to highlight the problem that Garmin does not seem to want to solve. Updates cannot make things worse. You cannot have a watch that is so emphasized for frequency at the wrist if it is not accurate. It must be a priority issue for Garmin and settled within a few days. It is not possible to spend 500 or more euros on a watch that then does not work as it should. If it is not a software problem (but it is) then replace the watch with a new one. I am sorry for the vent but it is due. At first I was very enthusiastic about it now much less so.
a watch that then does not work as it should.
Garmin's disclaimer is clear about Activity Tracking Accuracy. It is available for reading to the public before making a purchase decision.
In my experience there has been no change in the performance of WHR since 4.10 (installed when I purchased mine) to 6.10 currently installed. But then, I never had unrealistic expectations for the performance of WHR. It works at low intensity for activity tracking. It has never worked properly for me during activities as I have shown with examples from the different software updates since I have had the watch.