 The Samsung Galaxy S III is a multi @-@ touch , slate @-@ format smartphone model designed , developed , and marketed by Samsung Electronics that runs the Android OS by Google . It has additional software features , expanded hardware , and a redesigned physique from its predecessor , the Samsung Galaxy S II . The S III employs an intelligent personal assistant ( S Voice ) , eye @-@ tracking ability , and increased storage . Although a wireless charging option was announced , it never came to fruition . Depending on country , the 4 @.@ 8 @-@ inch ( 120 mm ) smartphone comes with different processors and RAM capacity , and 4G LTE support . The device was launched with Android 4 @.@ 0 @.@ 4 " Ice Cream Sandwich " , was updated to Android 4 @.@ 3 " Jelly Bean " , and can be updated to Android 4 @.@ 4 " KitKat " on variants with 2 GB of RAM . The phone 's successor , the Samsung Galaxy S4 , was announced on 14 March 2013 and was released the following month . 
