As you can see in the following images, from two different indoor aerobic activity, there is like a pattern in the drops of HR issue, notably after the 5.33 update. Even after a hard reset, the problem persists.
As you can see in the following images, from two different indoor aerobic activity, there is like a pattern in the drops of HR issue, notably after the 5.33 update. Even after a hard reset, the problem persists.
OHR is not as accurate as contact sensors.
pick up an inexpensive HR strap and use that.