The iPhone 5 has a larger screen than previous versions, at 4 inches, with a resolution of 1,136 x 640 or 326 pixels per inch — which is still a “retina” display, as Apple defines it. The larger screen has a widescreen 16:9 aspect ratio and has lengthened the phone overall, but it also allows for a total of six rows of apps on the screen — five rows on the “pages” along with the permanent single row along the bottom.
Apps designed for previous iPhones won’t scale to the new screen — they’ll appear with black bars on the two ends of the screen.
The phone, which is said to be made entirely of glass and aluminum, is also thinner overall. It’s just 7.6 mm thin, 18% thinner than the iPhone 4S. It…
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