iPhone 5 is only 9 millimeters taller than iPhone 4S, it uses in-cell technology

  For months we have been told that iPhone 5 it will have a screen built using in-cell technology and this turns out to be completely true. Apple claims on its website that the iPhone 5 screen is the first to be built using that technology, and below it describes exactly the in-cell technology that many rumors have presented. Practically, in the iPhone 5 screen, the pixels also include touch electrodes, the touch panel being much thinner than the one in the iPhone 4S, and this allowed reducing the size of the device, but also improving the quality of the images offered on the screen.

Making a thinner, lighter iPhone meant even the display had to be thinner. Apple engineers accomplished that by creating the first Retina display with integrated touch technology. Which means instead of a separate layer of touch electrodes between display pixels, the pixels do double duty — acting as touch-sensing electrodes while displaying the image at the same time. With one less layer between you and what you see on iPhone 5, you experience more clarity than ever before. All on a display that's 30 percent thinner than before.

  Regarding the height, the 9 millimeters that make the difference between iPhone 5 and iPhone 4S will be imperceptible when you take the device in your hand and I think that the size of the screen will quickly make you forget that you are actually using a longer iPhone.