When the HR sensor is enabled during an activity, it captures a detailed HR history that is written to the FIT file. After that, in 24/7 HR stats however, I find that almost all peaks that were recorded during the session are missing. As a result, the min/max stats are also wrong.
So if you workout like hell and push your limits, you'll never see that in the 24/7 and health stats. This kind of defeats the purpose of the device. IMHO this is a bug.
I understand the default 24/7 HR readings have a low sample rate in order to save battery life. But when there's more detailed information available anyway, e.g. during activity recording, that information should not be silently dropped.
