I own a Garmin Fenix 6 Sapphire and a Garmin VivoActive HR. The VivoActive heart rate reading has been incredibly accurate for the past 3 years. I expected the same results from a watch that costs 4 times as much but I have been let down so far. My new Garmin Fenix 6 Sapphire HR reading is typically 30-40 beats lower then it should be. I have read about many people that have the same problem but no one seems to have a solution. I have tried the easy solution such as tightening my watch but nothing seems to work. Is Garmin addressing this?