This reminds me of the AliveCor device, which excites and frustrates me. I'm excited because I'm hopeful that when such monitoring becomes dirt cheap and unobtrusive, people might find conditions earlier and have a better chance to treat them. I'm frustrated because in the U.S. it currently requires a prescription from a doctor to buy one. This feels like regulatory nonsense to me. It seems like an obviously low risk that this could do any harm.

I'm a bit hopeful it will go on sale in some other country soon that doesn't require a prescription and I can have one shipped to me.