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Re:Apple Watch 3 by overcast on Tuesday September 12, 2017 @04:56PM (#15232608)
So the Apple Watch is in an accurate heart rate monitor? Or is high precision not needed for testing for this abnormality? I want highly accurate rate monitoring throughout the day, especially on long hikes.
Re:Apple Watch 3 by peterarmstrong on Tuesday September 12, 2017 @05:53PM (#15233211)
I've found mine is accurate as long as it is snug. But if it's not snug, it can be way off.

Also, when I first tried it I had wrist pain, and learned that I actually was "wearing it wrong". Moving it further up my arm fixed it, and now it's literally my favourite device.

Re:Apple Watch 3 by overcast on Wednesday September 13, 2017 @09:59AM (#15238283)
Hrmm. I'll await the in depth reviews. For now, my chest strap will keep monitoring for me.
Re:Apple Watch 3 by peterarmstrong on Thursday September 14, 2017 @11:20AM (#15248906)
I'm talking about Series 2. Series 3 isn't available yet. But Series 3 is supposedly same size as Series 2, except the thing that sticks out of the back is "2 sheets of paper thicker", to use Apple's new contribution to the imperial system :)

So my guess is it will be the same: just as good as my Polar chest strap when snug, and off when, well, off.