how to check iphone version

on the 4S there's a black horizontal line on the side, right above the mute switch. On the 4 , there isn't.

check out this: http://www.apple.com/iphone/compare-iphones/ for pictures

Message was edited by: jesterwylde

You can check the model number of your phone here.

An AT&T iPhone 4 has a model #A1332, and an AT&T iPhone 4S has model #A1387

Hi, manojwarrier

You can check the model number of your Iphone with the below link

Iphone Versions

http://support.apple.com/kb/ht3939

Any particular reason you are replying to a 9 month old thread with information already supplied by xtremecarbon