PhD students of Penn State University conducted the screen pixel measurement test between iPhone 4 and iPhone 3G and send the microscopic screen test photos to Engadget.
The iPhone screen pixel measurement test revealed that iPhone 3Gdisplay is of 13 x 40 microns whereas iPhone 4 has 6.5 x 20 microns which is exactly four times than the previous model of device and proved the Apple’s claim right. The test prove that iphone 4 is certainly more advanced and better device then previous counterpart iphone 3G.
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