I got this and when compared to my Apple Watch
I got this and when compared to my Apple Watch, this Sleepon3 is poor in data acquisition. Nobody with an Apple Watch sholud waste their money on this, but get Apps that use data from your watch which are much better and accurate. I thought this was an improvement? Not the little rings to hold this are way too small for an American mans Hands. None would fit, so I tried it on my little finger and it was tight. This thing couldn't record as it said I had less than 3 hours sleep, and I slept 9. Then it never could connect to the cloud? I then went to my iPhone and all the data from my watch was there from O2, breathing cycles, Heart rate, Sleep Quality, HRV, Sleep BPM, Restfulness, etc. I would love to return this, but seems it's made in China, perhaps that explains all the issues. Stick with the Apple Watch! It's proven and my cardiologist loves the data from it.