White iPhone 4s 16gb - in great condition (willing to do swap for iphone 4 and cash) ?

White 16gb iPhone 4s for sale, currently on 02. Near perfect condition, 1 slight mark on right handside but thats it.. always covered Running IOS5 Comes with charger and original box Serious offers only, texts only please 9am-5pm. Looking quick sale In East Belfast No time wasters please.