Apple iPhone ... resolution of 640x960 pixels at a pixel density of 326 pixels per inch (ppi). Apple iPhone 4S is powered by an 800 MHz dual-core processor. It comes with 512MB of RAM. The Apple ...

Sony Mobile (previously known as Sony Ericsson Mobile) is a subsidiary of the electronics giant Sony Corporation. The company's Xperia range that started off with Windows Mobile OS has moved to ...

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