anything else use another device due to the Apple Watch HR problems? Garmin, Fitbit?
I have used Mio, Polar and FitBit. I have compared them and even the Polar H7, which is a really good chest strap monitor, is not more accurate for me that the AW. I will say I have had one or two workouts where the AW registered nothing, for some unknown reason, which has not happened with the Polar chest strap.
I think some people's anatomy makes for better or worse readings. I also think that it helps that I wear the AW fairly snugly.
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Yes, it's not always 10 mins.
I checked my heart rate in health. Here are how time between checks.
2 mins
10 mins
2 mins
16 mins
12 mins
18 mins
6 mins
8 mins
2 mins
Looks like it picks up the HR data depending on movement.
That's right.