looking at either of these and perhaps any other camera that I'm not aware of. The clarity of the Replay XD is great, as alot of us have viewed Warren's videos on here. He clips his camera to the underside of his cap and does an outstanding job videoing. The only drawback to this is I'm very partial to a sock hat when I hunt. I also looked at the ShotKam. I like them alot and they mount to the underside of your barrel. I shoot an Auto 5 12 mag, and was wondering if the barrel moving would affect video quality?