All of its exclusive features were incorporated into the iPhone 4 .
Though in addition to the upgrades mainly regarding performance , various software features were also introduced exclusive to the iPhone 3GS such as Video Camera , Voice Control and Digital Compass .
All of iPhone 3GS 's exclusive features were incorporated into the iPhone 4 .
Though in addition to the upgrades mainly regarding performance , various software features were also introduced exclusive to the iPhone 3GS such as Video Camera , Voice Control and Digital Compass .