I have recently published an app used to graphically display current and past heart rate:
https://apps.garmin.com/en-CA/apps/877c5bb5-0a4c-4522-99e5-abdcebb15164
Any feedback is greatly appreciated!
I would be interested to know which devices the graphing works on and which it doesn't. I have confirmed that graphing works on Fenix 5X and doesn't work on Fenix 3HR. jim_m_58 (I can't get tagging to work :() might be able to provide some insight as his username has showed up in most of the discussions concerning getHeartRateHistory()?