iOS 4 has been in the process of regular updating. New iOS version offer good features but in iOS 5 there is added features which were not found in iOS 4. So in the picture below I have mentioned some of the comparison of features between iOS 4 and iOS 5.
Comparison between iOS 5 and iOS 4
About the Author: Junaid Rehman
I am a blog and freelance web developer by profession. I love to blog and learn new things about programming and IT World.