I have the RING (battery version) and it really doesn't work very well due to our terrible broadband speeds. The video-link recordings are around 2 seconds of blurry moving image, followed by the remainder of the recording showing a still image. Not much use if you are rural and have very slow broadband speeds! The image quality is very poor - not sure if that is wifi signal or broadband speed related.

The proximity notifications are still very good though.