Used Apple iPhone 4 Black 16 GB will swap *

This is a used Apple iPhone 4 black 16 GB I think the phone is unlocked as apple claim it is. It has no scratches, chips and e.t.c I will throw in a new screen protector and a case I will swap with a 4S or Samsung galaxy s3 With Money on top. It is boxed and comes with the usual: Box Charger Earphones Books Any more questions please ring