The Yi 4K action camera has been out for a while now and reviews are starting to reel in. We seen quite a few of them (and we will have one of our own soon), but this one review got us thinking that the YI 4K is indeed a gopro killer.
If you go to the techmoan blog post, you can download several sample movies. As far as I can tell, movie quality is pretty comparable with the Gopro. We will update as soon as our review is done.
