Let me bring few main differences between iPhone 3GS and iPhone 4.
We are all familiar with the smart phone of course. The style doesn’t differ much from its predecessor, although the iPhone 4 is the slimmest smart phone to date. Its strength was also been improved by the stainless steel back. The front of the phone had a special cover that is against scratches. However, not only was the design changed.
As we all know the iPhone 3GS did not have two cameras and recording abilities. The iPhone 4 has two cameras and video recording, helping you to remember all the important events. The iPhone 4 also has the function FacetoFace talk, which allows you to have video calls with your loved ones. Of course, this is not all.
There are more pixels with higher resolution that allow you to enjoy the true colors of the applications and especially the one that allows you to read books. The other improved feature is concerning the applications. Now you can have many applications opened at the same time without worrying that they will be slow or will shut down any minute.
The only problem known to Apple was concerning the built-in antenna. Some people were saying that when they were holding the phone with their left hand, they lose the signal. Apple tried to rectify the problem with some specially made covers but then got rid of it completely.
The iPhone 4 was a better seller than the iPhone 3GS and the reason for that of course is the slim design and the better applications and features. In many countries, there is a huge demand for iPhone 3GS and iPhone 4. In my opinion, every modern person has to have the iPhone!