if you r are considering an s4, take a gander at the lg optimus g pro, it's a bit bigger 5.5" screen, isn't as marketed as the gs4 but is considered by many the top smartphone currently
and it has full hd 1920x1080p ips screen
LG Optimus G Pro Review: The Fastest Big Phone Out There
http://gizmodo.com/lg-optimus-g-pro-...ther-510096255