If you are currently using iPhone 3GS you might be wondering – should I upgrade to iPhone 4? If you still have the 1st generation iPhone or iPhone 3G. Stop reading now and go do the upgrade. For anyone else, let’s look at some reasons you should upgrade your iPhone 3GS to iPhone 4.

First, pictures and videos. iPhone 3GS has 3 megapixel camera and video recording capability. It’s fun to use it casually. But for someone more serious about editing pictures and video, the iPhone 4 is the one you have to get – 5 megapixels and 720p HD video recording.

Second, speed matters. iPhone 3GS runs on 600mhz chip while iPhone 4 has the new A4 processor that’s 1GHZ. It’s 40% faster. So loading web pages are almost twice as fast as iPhone 3GS.

Third, iPhone 4 has twice the pixels on the same size screen as iPhone 3GS. That means the screen is more pleasant to read, especially when it comes to reading books.

Reasons not to upgrade from 3GS to iPhone 4? Well, if you don’t feel any of the above is important to you or you are planning to switch to another carrier.