The battle of the waterproof phones: Samsung Galaxy S4 Active vs. Sony Xperia Z

A waterproof smartphone is a nice idea, but they've always been kind of terrible. Casio has been making its line of Gz'One rugged smartphones for years, but they've always been a disappointment in one way or another, with slow processors, disappointing screens, and outdated software. Outside of the Japanese market, where every smartphone is waterproof, you had to make a choice as a consumer: buy a top of the line smartphone and deal with getting a clunky or cumbersome case (and the constant fear...