There’s a reason why Apple called this the iPhone 3GS for Speed and not the 3GC for “compass” or 3GV for “video recording.”
Speed is the central upgrade here, and probably is the single biggest reason you would upgrade to a 3GS from a 3G.
Like I said, from the outside the 3GS is exactly the same as the 3G. It’s slightly heavier and has glossy text on the back, but if Steve Jobs whipped one out in public before it was announced, you wouldn’t have been able to tell the difference.
By holding the 3GS next to the 3G, you’ll notice that the screen is slightly more reflective because of the new fingerprint resistant oleophobic coating. It even has a little bit of a rainbow effect if you reflect a monitor with it.
Surprisingly, the coating actually works in preventing a good deal of fingerprints and face grease, and it allows the phone to still be smooth and usable even if there are fingerprints on the surface.
iPhone 3GS is still usable and doesn’t have the problem of “sticking” in certain areas that are slightly greasier.The 3GS display is ever-so-slightly warmer than the 3G’s, having a yellow/orangish tint when viewed side by side.
Apps with long load times, like Sims 3, Oregon Trail or Metal Gear Touch all show how much faster you get up and running on the new device. Seriously, everything is faster.Your apps all look the same, but they load and run much more smoothly. Even if you’re doing the same things on both machines, the new machine is that much better to work on.
The 3GS also has a 3-megapixel camera, adding auto focus and video recording. You even get an interface that lets you tap on a section of the screen that you want to focus on and the phone will automatically adjust the focus to that point in space.
By tapping on the screen and activating the auto-everything—not just auto focus but improved auto exposure and auto white balance—you’re gaining the ability to control more of what your shots look like.
The video quality, on the other hand, is pretty good for a cellphone.Even if it’s not quite 30FPS at all times, the video is smooth as hell. Recording still isn’t great in low light since it’s a physical limitation of cameras in general, but at least it’s fluid. The tap-to-focus (and re-expose) feature also carries over to video, which you can use to “aim” your camera at a part of the scene.
What’s also surprising about the 3GS is that you wouldn’t expect battery life to be improved, but it is. Plus, since the phone is faster, you’ll probably spend less time looking up directions or getting to a restaurant’s web page—which also saves battery.
So what I say about iphone is that it’s a cool phone so those people who love touch phones should buy one iphone. 🙂