Iphone 4s has indeed been a revolution of late with sales already reaching a million. So what has changed in iphone 4s compared to the iphone 4. Here are a few  important changes…

1) First the hardware processor has been improved to to a A5 dual core chip from the single core which iphone 4 had, which means it is a lot more faster.

2) The price and screen dimensions remain the same as was with iphone 4. An iphone 4s case can be fitting well with a iphone 4 case for example.

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