I just bought this one and was highly impressed with all aspects, especially the lens and picture quality (equal to GP Hero 3 Black edition). One think I love about this camera is the head band mount where the camera fits on the side of your head, leaving plenty of room. The go Pro's position on the top of your head or forehead hits and scratches the canopy regularly.

http://www.engadget.com/2013/09/04/s...cam-hdr-as30v/

And here for the headband mount: http://www.bhphotovideo.com/c/produc..._Headband.html