You can receive call using your hand swipe over the proximity sensor in any devices and reject call using your hand swipe slowly over the proximity sensor. Especially useful for drivers with a bluetooth headset, it means you don't have to fiddle around trying to press the correct button, leaving you to concentrate on the road. If you don't use a bluetooth headset, you can automatically turn speakerphone on to answer calls within the settings, again making life easier on the road.