SONY ERICSON ARC S/ COULD SWAP SAMSUNG GLAXY S2 ?

HI I HAVE LIKE NEW SONY ERICSON ARC S PAY AS YOU GO PHONE WITH BOX AND ALL ACCESSORIES UNLOCKED TO ALL NETWORK ONE AND TWO LIGHT DENT ON THE SIDE/NOT SEEING EASELY SCREEN IS CLEAR NO MARKS OR ANYTHING ON IT PLEASE NO PAY PALL NO AFRICA FACE TO FACE DEALING