What makes the iPhone 5 different from the iPhone 4S?

My 13th birthday is coming up and I wanted an iPhone 5, I already have the 4s and I wanted to know he differences between the 5 and 4s.

No horrible answers saying I'm spoilt blah blah blah, it's my 13th normally I'm not allowed this much money spent on my birthday.

Is the iPhone 5 worth my mummy and daddy buying for me or not?

5" screen it's totally worth it.

Actually the iphone 5 has a 4 inch screen. Not a 5. The iPhone 4S and all previous have a 3.5 inch screen. The 5 has an upgraded processor. A more advanced camera. A new design that has aluminum and glass on the back. That's basically about it. Hope this helped good luck!

Far better hardware

Iphone 5:
4-inch (diagonal) Retina display
1136-by-640 resolution
326 ppi

iPhone 4s:
3.5-inch (diagonal) Retina display
960-by-640 resolution
326 ppi

http://www.apple.com/...e-iphones/

Rumours of iPhone 5 features are pointing toward 1GB of RAM, that should be enough for me. The addition of some 4G LTE internet would be a nice feature. A faster quad-core or some secret six-core processor would be nice in the new iPhone, as I love a bit of a multi-tasking.