Ok, my first day with the Xiaomi Yi and I'm pleasantly surprised how good it is. I wasn't expecting it to be awful, yet I wasn't expecting it to be so well put together. The video performance both day and night is very good and it handles exposure much better than the SJ4000.
What I'm really impressed with is the app, it is very complete and well integrated with the camera. I actually received an OTA(?) firmware update for the Yi camera that updated itself through the WiFi connection on my phone. This is my third WiFi camera (SJ4000 & C4) and the best app so far. BTW, I'm glad to report that loop recording is there and records in 5 min clips. I will test it more and post some video as soon as I can.
Thank you
@GearBest for sending me the camera.
http://www.gearbest.com/gadget-deals.html#deals_417
Coupon XMXYCAM