Looking to buy a iPhone 4S on Craigs. Is there a sure way to make sure that it is a 4S not a iPhone 4?
The model number printed on the back of the GSM-equipped iPhone 4 is A1332, the model number on the back of the CDMA-equipped iPhone 4 is A1349, and the model number on the back of the iPhone 4S is A1387.
Check for 4 antenna bands (2 on each side) AND a sim card slot on the right
Your iPhone 4 SIM tray slot is on the left![]()
Your iPhone 4 SIM tray slot is on the left![]()