Steve Jobs told during the WWDC10 Keynote that the Retina display mounted on the iPhone 4 is just superior. Samsung, the world’s biggest display maker does not agree on that. According to Samsung the retina display on the iPhone 4 is only 3 to 5 percent sharper than the AMOLED screen on the Samsung phone Galaxy S, that’s only a little bit sharper while the Retina display uses 30 percent more power. Samsung also believes that the Samsung AMOLED display offers a better viewing angle and contrast.

Source [Engadget]