I have for the S4 from Spigen as a protective film, the glass -> SPIGEN SGP Galaxy S4 Screen Protector Premium Tempered Glass GLAS.t SLIM This sports 0.23mm up and down here, the magnet protector CORRECT meaningful. Without glass, it snapped right now with the glass is on the cover approx 8mm; at 5mm acts already the magnet and it is Bombenfest. The feeling with the glass is more enjoyable and one has another protection. But even without glass I can only recommend this bag. The "View Window" works tadelos, even with the extra glass between them - amazing. The camera lens is now lower than the other, just as the on / off button is recessed which I find very convenient. At Nexus 4 I had often the problem was that pressed in tight pocket of the button once more and the mobile phone is rebooted. Very annoying. The volume rocker can use if necessary even by the bag. Do not know what to write. For the price, it is certainly genuine top. If such a case even more valent comes to buying these I also;) eg with a Gorilla Glass View Window. There seems to be only a plastic disc;) But that complain on high level. It would be nice also if they had to protect the corners extended a little. So quite a long range is up and down but unprotected.
Update 22-06-13: I've still got ordered another envelope. This is simple-quality and you have a stand. If you can live with a tab which I'm still fond of this: ROCK "Flexible" Ultra Slim S View Cover Flip Leather Case Cover Flipcase in BookStyle for Galaxy S4 i9500 with magnetic closure and windows in black