Brand new in box with all accs Samung galaxy s2 unlocked Swap for iphone 4 ?

Hi i have a brand new 2 month old samsung galaxy s2. boxed with all accs and unlocked to all networks comes wth Samung galaxy S2 16gb black (unlocked) Orginal head phones Orignal charger Screen protector already on phone Orignal box and manuls In really good condition will take £300 ovno Or will swap for iphone 4