I fell for one of these copies as well. I think we are going to have to spend a little bit because while mine did give some level of heartrate reading, it was all over the place to the point where I didn't believe it at all. It would also have wildly inaccurate step counts and is basically just a piece of junk that I think i just threw away or gave to someone who doesn't even have a watch at all.

But for $3 we should have known we were getting garbage :)