My Apple Watch is helpful in running ECGs that I can upload to my cardiologist just to double check that I am ok, despite any A-fib readings by the watch. The watch has limitations on what it can read—so in my case, in addition to AFib I also have two different arrhythmias that cause rapid beats and skipped beats. Sometimes the extra beats cannot be measured by the watch so it reads I am in AFib when it’s actually only a bad run of PVCs. However, if my HR is over 140 for over an hour (thankfully only about once a year), and multiple readings show Afib, that’s when I either take my pill in a pocket or head for the ER.

So while yes, it’s helpful, it also has limitations in what it can read.