Samsung has been an innovator when it comes to screen technology in phones. Its AMOLED-based screens have been customer favorites for a long time now, and obviously the company intends on sticking with that tech in the long term. In the Galaxy S III, what we have is an enormous 4.8 HD Super AMOLED display, with resolution of 720x1280 pixels. As with every AMOLED screen, this one has extremely saturated colors. In some situations, like when browsing the web, for example, this doesn't look great, as we aren't really used to such colorful web experience. It doesn't seem natural, so to speak. However, in many other situations, like viewing photos, watching video or playing games, having such vibrant colors really pays off. When you combine that with the great contrast (black color that is completely black, not just very dark gray, as in LCD displays), multimedia consumption does get much more enjoyable.
Many were actually disappointed when it was announced that the S III will use a PenTile matrix for its screen, instead of a regular RGB one as in its predecessor. Just recently, Samsung USA's Philip Berne shed some more light on why Samsung decided to stick with PenTile. Obviously the reason is in the longevity according to Samsung, a PenTile-based AMOLED screen will keep its initial quality for a longer time, compared to an RGB AMOLED one, which will suffer from deteriorating blue subpixels over longer periods of time. Well, since we don't really find the traditional drawbacks of the PenTile screen to be that visible in the GS III, that seems like a good decision by Samsung. If you look very closely at the screen of the Galaxy S III, you will notice some pixelization going on here and there, but when you look at the screen from a normal distance, those nasty dots aren't really visible, due to the high resolution.