Agree with TF, that Olympus is a great buy....
As to using your phone.... If you want have decent pictures, don't use your phone... no matter what it is, its never gonna take a proper decent printable image....
I used to us a Canon Ixus with a U/W Housing for U/W stuff and fishing the streams and on my Kayak... unfortunately it got broke somehow by my girlfriend....
I use a Canon EOS 400 SLR now... but obviously keep it high and dry....
If you not a Camera nut, but still want something that will take excellent pictures, along with being tough and waterproof, TF's Olympus is hard to beat, and @ 10 Megapixels, print quality is awesome!