My smart watch may have saved my life . . .

I'm (61f) laying here in a hospital bed thanks to the Galaxy Smart watch my son gave me for my birthday this past summer. When he gave it to me I didn't want to seem ungrateful, but it's so big and I have small hands/wrists. I found the sleep app on it very useful as I have issues sleeping. Saturday around midnight my watch woke me up vibrating on my wrist. It said it detected an irregular heart rhythm. I used the ECG app and it said I was in AFib. I don't have a history of heart health issues so at first I wasn't alarmed, but after it walking me up 4 more times, by 3:30 in the morning I was concerned. I called my health insurance advice nurse and by this time I had slight pain running down the left side of my neck down my shoulder. She told me to call 911 and take an ambulance to the ER. The hospital isn't far so I drove myself. It wasn't a heart attack, but my heart is still in AFib. I'm still waiting for the results of my echo cardiogram and they didn't know why I'm in AFib yet. They've got me on blood thinners now because AFib can lead to a stroke. But I would've never known my heart was having an issue if it wasn't for this watch. I'm not advertising for any Samsung product, I just happen to have their android phone. I'm not sure if Apple watches have the same function, but I'm pretty sure they probably do. Anyways, this watch was the best present ever and may have saved my life, even if I didn't care for it at first. Stay healthy people . . .