Difference Between Iphone 3G And 3Gs
It's not only the price that makes the difference between iPhone 3G and 3GS. Some of the features vary considerably. The iPhone 3GS is considered an upgrade from the iPhone 3G. Whether you want to upgrade depends on which features you frequently use or would like to use.
If you like to record videos with your iPhone, you are better off with a 3GS. The iPhone 3GS has both video recording and video editing functions with a frame rate of 30fps. You cannot record or edit video on the iPhone 3G. The 3GS also has an integrated magnetic compass, water resistant finish and support for Nike+. The iPhone 3G has none of these features.
The other differences between the iPhone 3G and the 3GS mainly involve upgraded storage, speed and graphics capabilities. The iPhone 3GS processor operates at 600 MHz compared to 412MHz in the 3G. The battery life is only slightly longer in the iPhone 3GS, but the wireless speed is double. The still camera on the upgrade has a 3 Megapixel autofocus versus 2 Megapixels for the 3G. The graphics capabilities are upgraded from OpenGL ES 1.1 to OpenGL ES 2.0.
Some other features are similar in the iPhone 3G versus the 3GS, such as size and weight. the weight is not exactly the same, but you won't notice the difference. The iPhone 3GS is 0.07 ounces heavier than the 3G.
If the differences between the iPhone 3G and the 3GS make you want to upgrade, consider the biggest difference between the two. The price of the iPhone 3GS is usually twice the cost of the 3G.