once I finished my work out and turned off the edge and turbo trainer the fenix started reading closer to actual heart rate, there are no other sensors attached to the fenix 7. the connect app shows my max heart rate for the day at 134. the max for the activity was 174. what is stopping the fenix just reading heart rate like the instinct used to?
The Fenix 7 has extremely accurate heart rate monitoring, and you can quickly check your heart rate training zone mid-workout using a colored bar at the top of the screen (Image credit: Future)
Price. The Apple Watch Ultra comes in at $799 and that includes the one band and the watch. The Garmin Fenix 7 Sapphire, which has the upgraded GPS receives and more, costs $899. The Garmin Epix 2 with Sapphire costs $999. I am actually quite surprised at the Apple Watch Ultra’s price. I thought it would be $999.
Starting on 12/30/20, my app no longer calculates my resting or high heart rate for the day. It's also not showing the graph on the heart rate details.

Certainly in the lower power 24/7 mode, while it is pretty good with lower heart rates, the WHR can struggle with heart rate above 120 pm. Normally this is a non-issue, because MoveIQ (basically activity autodetect) identifies the movement patterns of more vigorous activity, and triggers the higher power activity mode which will track higher heart rates accurately.

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garmin fenix 7 heart rate not working