@cannon360 I think for some the Smart watch has become I source of just another ailment, anxiety. With every passing moment of precieved strange heartbeat it becomes the " go to" source for a digital answer and we often find the answer to be just an opening of a door to another question without an answer.
Regarding the inconclusive reading look at it this way. With the watch you only have 2 physical contact points to take a reading. At a medical facility they stick you with multiple leads physically stuck to your skin to assure a valid reading. Which reading do you think is going to be a better reading?

The watch is a decent way to get some basic information but it provides more questions than answers and adds the little extra jolt of anxiety that I think most of us can have a much better life without.👍🏼