I am the type of person who always thought he would buy a Rolex before he bought an Apple Watch.
Last year my Dad was diagnosed with Atrial Fibrillation (A-Fib). This is apparently the root cause of all the small strokes he has had over the past 10 years, causing his dementia.
Based on his family medical history, there is a genetic component, because his decline mirrors the decline of his mother and grandmother.
I asked my Doctor about what kinds of symptoms I might expect as early warning signs of A-Fib. She didn't have a lot of answers, fatigue, tired, while helpful are too common for something so dangerous
Then I read that the Apple Watch 4's and 5's had a basic EKG function built into them, that is capable of detecting A-Fib. It isn't capable of detecting a heart attack, but it can detect this problem that is killing my Dad.
I bought one for myself within the month. I do an A-fib check once a month, so far no signs, but, if I get it, hopefully I will be able to get treatment before I start having strokes like my Dad did.
I haven't seen a Rolex or Tag Hauer capable of doing the same thing for me.