What IPhone is better 4S or 5?

I have a blackberry ATM but don't want it anymore so I've decided to get an iPhone, But I'm not sure if I should get the 4s or 5? I've heard people say 5 is better and I've heard people say 4s is better so what one is better and why?

Get the 4S. It's cheaper and does everything a 5 would. It has the same 8MP camera, it has Siri and will be just as fast on iOS 7. The only difference between a 4S and a 5 is the size of the screen and it is a tiny bit faster. The 4S is still a really good smartphone. If you can afford the 5 though, go for that.