There is the problem that the irregularities may only appear infrequently. Often data collection may be done for a day or multiple days to capture irregular pat

There is the problem that the irregularities may only appear infrequently. Often data collection may be done for a day or multiple days to capture irregular patterns and try to understand how various activities impact those. Seems unlikely that one would be able to self diagnose with an Apple Watch due to limited data. Unless the condition was very dominate.