Cycling UK Forum

Thanks Jonathan for the Apple survey link. Unfortunately it doesn't get me much further.
My original enquiry was about what the Smartwatch is actually telling me, and if its dangerous.
So yes, I have been diagnosed with AF. Been to hospital for a reset that didn't work. Resumed cycling with doctor's approval, sometimes getting AF notifications, sometimes elevated heart rate, and sometimes nothing. A month ago I fainted in the middle of the peleton without warning, managing to break my collar bone.
So...no more group rides, just the home trainer.
I'm no nearer to knowing if elevated heartrate is dangerous, or how quickly AF is detected by the watch, or if its sampling interval is regular or confused by AF, or if fainting is my bods way of saying,"thats enough".

Thanks for all your suggestions.

This was really an enquiry to find suggestions for an efficient wrist/ chest strap heart monitor with an audible alarm, that could identify AF separate from normal BPM
I suspect I have exercised for years with an elevated heart rate due to AF but not known about it. After fainting after a ride it was diagnosed.
So i need a device so if my wrist heart monitor suddenly shows 220 on a gentle ride from say 125, and sounds an alarm, I stop until it drops to a 'normal' level.
Any technology suggestions most welcome.

I'm a club/recreational rider with Atrial Fibrillation. (I have been to hospital for a factory reset, but it didnt work.)
I have been looking for some time for a chest strap + wrist monitor combination which can reliably distinguish between AF and normal elevated heart rate when i'm on the bike.
I would like to be able to set a maximum training rate with an instantaneous audible alarm when the rate is hit.
A current suggestion is a Polar FT with a chest strap. I don't have any real need of other ride info. I have an Apple watch 4 which can do this, but only after 10 mins of inactivity- not ideal!
Any advice or experiences would be most welcome.