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The featherlight 112g weight is one of the best features of the iPhone 5. Even though the home button appears the same as previous models, it feels slightly more responsive to press than the one on the 4S. Most buttons are in the same place - volume keys and a silent slider switch on the left, a lock/power button on the top and a home button on the front below the screen.
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It's been replaced by an anodised aluminium backing that is flanked by two glass strips at the top and bottom of the phone, creating a two-tone look.
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The biggest design change is the glass back that was a highlight of the the iPhone 4 and iPhone 4S. There's an extraordinary attention to detail in the construction of the iPhone 5, something that most competitors lack.
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