I can't really say much for anything else but the S4 seeing as it's the only one I own. It's pretty good, even though I barely use half the "cool" features on it. If you're going to be using it for gaming though, it gets pretty hot towards the top where the CPU is even with the most simplest of games. Not unbearably hot, but still hot enough to put you off whatever you're playing at times. I've heard this is a problem with a few S4's, but I could just be unlucky with my one.