POWERFUL ANDROID Phone, swap Px Or sell +

THIS PHONE CALLED XPERIA S its processor is dual core 1.5Ghz Ram is 1 GB and Memory is 32 BG also have 12 megapixel camera I am not sure if its unlocked or not but I am using 3 network on it. it comes with Charger only Phone is in Brilliant condition always screen protector on and it is in cover aswell first to see will buy any question please ask 07960059751 cash on collection from oldham or i might swap with IPHONE 4,,,, OPEN TO OFFERS !!! thanks