Unit is ok, but not great. Doesn't do a good job for people with tremors such as Parkinson's or Essential Tremors. It can be hard to get a stable reading. Also, have had issues with schmutz getting into the battery compartment. Then, even though it shows 66% battery level it failed to get a reading. I clean out the gunk and it works fine, with the old battery. And while I'm being picky, why did they pick a coin cell size that seems to be rare instead of a ubiquitous size like 2032?

App is very good, but always prompting me to upgrade, which is annoying. My cardiologist recommended it. I use it with the thin credit card recorder, which I can keep in my wallet or phone case. very easy to use. Only other downside is that it is too many steps to get to view your EKG in landscape mode I usually run it for 60 seconds, and I want to be able to view the result in landscape so I see more at once, and don't have to scroll as much.

Impossible to get timely reading! only about 1 in 8 times will it record, or less. it says "unable to record due to interfetence". Instructions say to move someplace without electronics. But every room in my house has electronics!! i even tried my bathroom. but i guess the electrical plugs annoyed it! i think it is gimmicky at best. Good if it worked but useless gimmick if it isn't stable enough to be useful when needed!!