It's longer but not wider. I used one at my previous employer as my work phone and it just felt weird to use.
That's the difference between aspect ratios. The 5 went to a widescreen aspect (16:9) from the oddball 3:2.
It's longer for several reasons, first is to keep the pixel pitch horizontally. Second was to keep the screen width constant which makes writing apps easier when the screen is always X or 2X wide depending on standard or retina.
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