While there have been plenty of performance comparisons between the iPhone 3GS and the iPhone 4 and even the iPhone 4 and other big name smartphones, I haven’t seen any thorough examination of the differences between all four of the models in their entirety. This video shows just how drastic the performance differences are between the first device and the most recent release.
For example, to launch Plants vs. Zombies on the first iPhone it takes a grand total of 26 seconds compared to the 8.5 seconds it takes to reach the same point with the iPhone 4. But iPhone 4 didn’t win all of the tests. Check out the video to see just how the devices measure up.[via]