O2Ring

As far as I can tell, the Wellue O2 Pro is the same ring except the Sleep HQ one has a software tweak that allows it to work with their platform and is a bit more expensive.

I use a cheap one - intentionally. Everyone recommends you go with an expensive O2 ring. They are supported by OSCAR and other programs and are well known. I use the cheap one because I wanted something to be available to people who can't afford the expensive O2 rings. I bought a few cheap ones and

I have a Wellue O2 ring (the one that take data every second). Yeah, I don't love wearing it at night. At first, I wore it on my thumb because it was less loose there than on a finger. Then I started putting tape on it to make it tighter and ended up moving it to my forefinger. More recently, I've f