I’ve had an Apple Watch for a few years now. Had a Fitbit prior and liked it, but my son bought me the Apple Watch so I wear it.
I use the Apple Watch (set to a specific activity) when ever I’m working out, walking, hiking, yard work, golfing etc. My heart rate has spiked over the last few years 160-165 bpm for a few minutes and has always settled down to my resting rate of 50 bpm give or take after a few minutes.This only occurred maybe twice a year. This past Labor Day it spiked to 180 and only “settled down” to 100-120. I went to the ER and they caught it on an EKG. I’ve got A Fib and I’m currently being treated for it. Without the Apple Watch I would not have caught it. I had no other symptoms. It’s very accurate and it has paralleled the various heart monitors. I won’t go anywhere without it now.
Cheers