I have a Iphone 4s, is there anything Iphone 5 can do that not available for 4s user?

I mean, is there any exclusive feature that the Iphone 5 can do, and that other older Iphone cannot do, should I upgrade to Iphone 5 ?
>>> I have a Iphone 4s, is there anything Iphone 5 can do that not available for 4s user?