Will Sleepas work with my Yamay Smartwatch?

I was wondering why the Yamay smart watches weren’t featured on the Wearables list, and if they ever will be. Mine is connected to my android phone and I want to use the oxometer during my sleep, which I sadly can’t do with the watch alone as it’s only good for spot checking.

These look like some cheap chinese watches, what kind of app support do they have?

They have the Veryfit app, and the Veryfitpro app. I use the Veryfit app because I don’t have to keep the GPS on to use it.