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iPhone 4 is powered by Apple’s A4 processor chip. The chip has been made as small as possible to accommodate the bigger battery that could take the load of all the new, fancy features. The A4 processor also makes very efficient use of power.

Due to the larger battery, iPhone 4 has better battery life compared to the 3g and 3gs

The device promises seven hours of 3G talk, 6 hours of 3G browsing, 10 hours of WiFi browsing, 10 hours of video, 40 hours of music etc.


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