Iphone 4s 16gb white .. wanting swap for samsung s3 !

Hi, I have for sale my iphone 4s 16gb in white. Its on the orange network (EE) and is in perfect condition. Had it for 3 months but have had a screen protector on from day one along with case. Fab phone, just not for me. Looking to swap for a samsung s3 in perfect condition with box etc. The iphone comes with all accessories (pin, earphones, charger and manual). Looking for a swap or 300 Genuine interest only. Thanks