You can clearly see the difference between the iPhone 4 and 3G displays

You can clearly see the difference between the iPhone 4 and 3G displays
We have all heard about the amazing Retina display on the iPhone 4. With a 640 x 960 pixel resolution crammed into a 3.5 inch screen, the iPhone 4 figures to have the sharpest display in the industry. Two PhD candidates from Penn State decided to take a look at the new version's display under a microscope and compare it to the one on the iPhone 3G. The latter's pixels measure 13 x 40 microns (a micron is one millionth of a meter and the average human hair has a diameter of 70 meters) while the former has microns half the size at 6.5 x 20 microns. This means that for each pixel on the iPhone 3G, there are four on the iPhone 4. That leads to the results you see below. No hocus pocus here folks, the proof is in the pudding.

Apple iPhone 4G Specifications

source: Engadget






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