Consider a SJ4000 instead. It is a go-pro knockoff but it works so well that people are now making knockoffs of it as well. It is about $100, wi-fi capable so it can be controlled with your phone, and most go-pro accessories fit it. Check youtube for a number of comparison videos between it and the various model go-pro's. My wife got me one for Christmas and I love it. I'm just trying to find a cheap or free video editor to use with it.
Keith