Why should i buy a nokia instead of iphone 5?

Pros and cons

Don't! IPhone 5 is so much better, believe me. Don't buy a Nokia

To be honest I work in a phone shop and many people who buy Nokia come back in the next month asking for it to get exchanged because of technical problems. Usually it's not making calls or there unhappy with the quality of the operating system. The iPhone 5 is selling better then Nokia and customers give me feedback that its the best phone for apps and music but when it comes to things like Bluetooth they wish they had it on their iPhones to send pics to other phones. The iPhone 5 seems to be ok but the best feedback is actually from Samsung buyers they say there super fast, super easy to call and text and they think the android beats it all. Personally I think so too. Samsung is by far my biggest seller too.
But in your case go for the iPhone.

IPhone 5 is so so so much better. You get fully featured App Store and iTunes with the largest collection if everything. You get amaZayn design and amaZayn camera. Trust me Apple's 8MP canera is better than S4's 13MP. And you get faster processor and faster network with 4G and everything you need is in the App Store. IPhone has free upgrades to its iOS and everything with great customer satisfaction. If you break your iPhone then they will give you a whole new one.
So go for the iPhone 5!