16gb-2090
32gb-2490

is the price u need to pay for the iphone...
total to pay is base on ur payment option...
cash/credit card or installment...
cash/credit card - 1st payment is phone price, and every month u pay for the monthly fee..
installment 24m or 36m - u need to pay for phone price + monthly fee for 2 yrs...

so, both with 2 yrs contract, just either u pay for phone 1st then pay every month, or u pay for the 2 yrs monthly fee in advance...