[arexi]

An app like this could save a life one day, for sure. My uncle recently died from a heart attack. It's impossible to know for sure but perhaps if he'd been wearing a smart watch, it could have told him to seek help before it hit.

[davegardner]

I'm not a doctor, but based on what little research I've done in the past, a basic heart rate monitor such is this is unlikely to provide any pre-warning of a serious cardiac event.