iPhone 4S Vodafone 16gb for sale or swap ?

I have for sale is an iPhone 4S 16gb it is On Vodafone it is 9 months old so still has 3 months of its apple warranty left, the phone is in decent condition for being 9 months old the colour is white come with charger etc. I am looking for a swap for another high end phone I am looking for a iPhone 5 but I am obviously willing to add money on top of course or will sell for 350 You can contact me on 07879334952 or email me