How does the apple iphone trade in program work?

Well, i have the iphone 4 and i've had it for about a year now and i really wanna upgrade it. I heard iphne has a trade in prgram but how does it work? Do i just walk in and trade my phone in for the 5s or do i have to do paperwork or something?

It's easy. You walk into the Apple store and ask a sales associate that you would like to trade in an old iPhone to get a discount off a new iPhone 5S. They will evaluate the phone, give you a quote, and then a gift card of the amount of that quote.

You may only use that gift card for the purchase of an iPhone in a physical Apple Store only. You may not use it to buy an iPhone online, even on Apple's online store. You can't use it to buy anything else in the Apple store--just an iPhone.