iPhone 4S vs iPhone 5

Hello,

I am not an expert in iPhones, so I came here for some tips.
I would love to buy one, but from what I heard and read, iPhone 5 has no significant upgrades in comparison with 4S. I could have 4S for a very good price, so I am asking, should I go for 4S without losing any great features of iPhone5?

Thank you!