In terms of screen size, iPhone 5 has a 4-inch 1136-by-640 Retina display, which is bigger and has a better resolution than iPhone 4S and iPhone 4, which had a 3.5-inch 960-by-640 Retina display. Though Apple has not altered the 8 mega pixel rear camera in iPhone 5, the front camera is upgraded from VGA to much improved 1.2 mega pixel with 720p video. iPhone 5's Siri has new features and supports more languages. Apart from these, iPhone 5 has a new connector called Lightning, an upgraded version from the earlier 30-pin connector.