Some comparison video of new ReplayXD 1080 versus my GoPro Hero 1080. Keep in mind the GoPro is 3 or 4 years old (2 generations I think). Having done this testing, seems like much of the problem I've had with the GoPro can be attributed to the mount more than the camera itself. You can also get a feel for the difference in the field of view. Both were recorded using the 1080p 30 fps setting. I tried to get the lenses as close together as possible.