I don't think you can rely on it to monitor any heart issues

Everyone with heart issues should have one.

Highly recommend this if you have heart issues!

It is a great way to keep on top of any heart issues.

A week later I found that my breathing was caused by a heart issue

If you have a heart issue or possible heart issue

You get the device, load the app on your mobile device put your fingers on the device and shortly it produced a clear trace of my heart beat with a assessment NOTE: this is NOT a replacement for a professional cardiologist care/examination but could be useful to monitor heart issues and as an educational device.

This item is a must have if you have any type of heart issues.

Would NEVER register anything for the person with the heart issues that it was purchased for.

I paid the price for a new item and what came was a used unit!The back had scratches as if the battery compartment was pried open with a metal object

If I use my fingers, the reading isn't as accurate (I shake) as when I just put it on the left side of my chest with cell phone on top of it