The s4 is a POS anyways, get the HTC One instead, even better wait until HTC One releases a Nexus version then you can build your own O/S build for it.

Seriously, the s4 under sunlight is completely invisible. It's also incredibly laggy with all the junk and 'touchwhiz' garbage Samsung preloads on it. Unless you rip all that out and use it only indoors you are walking around with a brick.