Lifeproof has released its popular waterproof case for the Galaxy S4. You can choose between the Fre (pictured here, $79.99) and the Nuud ($89.99), which leaves the screen exposed but still keeps water and dust out of your phone. Both models have translucent backs and come in only one color: black.
While I like the direct screen touch of the Nuud, if I had to choose, I would probably go with the Fre because it also protects the screen. If you're going to go with a very protective case like this, you should get one that also protects the screen, particularly one as large as the S4's.