The original iPhone and the 3G (see top left and center above) featured a 2 megapixel fixed-focus camera.

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But the Bold 9900 also features a fixed-focus camera, no front-facing camera, only single-core processor technology and a sub-3 inch screen size.

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Moving upwards, the C5510 adds in a dual-band 3G radio, 16GB expandability, and a 2 megapixel fixed-focus camera, while the S6700 slider (pictured) tops out the range with HSDPA, a 3 megapixel camera with autofocus and dual-LED flash, GPS, and 120MB of storage on board.

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