Compare performance of iPhone 4S and iPhone 4
actual testing of digit hoa shows that iphone 4s outperforms iphone 4 in the boot screen, internet connection and gaming ...iPhone 4 on iPhone 4S: Should I upgrade?
iphone 4s is causing fever for western markets and developed countries in asia with 4 million units consumed in 3 days. however for vietnamese people, upgrading iphone 4s is not