I looked at a smartphone when I got my Gzone Ravine. I decided that I wanted a phone that will take a beating when I'm on the Maah Daah Hey trail, hunting, and is water resistant. AND I wanted a phone I could strap to my RUSH pack. I couldn't find a phone case made for a smart phone.
I never thought I would use the camera function but after the first chick that hit my pickup it really made it easy to take pics of the damage and her plate.
The thing about the Gzone it has a compass, a themetor, pedomitor. I don't know I'll ever use the the stargazer feature.