 Upon release , a number of critics and publications have made references to the S III , Samsung 's 2012 flagship phone , as an " iPhone killer " , responding perhaps to Apple 's favourable customer perception . The label owes itself to the S III 's use of the Android OS — the chief rival of Apple 's iOS — as well as its design and features that rival the iPhone 4S such as Smart Stay , a large display , a quad @-@ core processor , Android customizability , and a multitude of connectivity options . 
