Summary: When it comes down to it, the iPhone 4S is everything it needed to be, nothing more. Nothing is mind-blowing or anything we haven't seen before. But Apple focused on some of the weak points of the iPhone 4, like the antenna, and improved upon them.
Pros: Choice in storage capacities; amazing camera; solid design and build quality; strong signal and call quality; decent battery life; "world phone."
Cons: The display is too small for comfortable use; glass on the front and back has proven to be fragile in the past; relatively expensive at $199.99 to $399.99 with a two year agreement.
Excerpt: Aaron goes in-depth with the Apple iPhone 4S , the evolutionary upgrade from the iPhone 4 that debuted sixteen months ago. While the design is virtually identical to its predecessor, there are quite a few improvements in the 4S such as a dual-core Apple A5 (800 MHz) processor, 8-megapixel camera...
Excerpt: Aaron reviews the Apple iPhone 4S , the evolutionary upgrade from the iPhone 4 that debuted sixteen months ago. While the design is virtually identical to its predecessor, there are quite a few improvements in the 4S like a dual-core Apple A5 (800 MHz) processor, 8-megapixel camera with 1080p HD...
Excerpt: Oh the torture! Our Pavlovian anticipation for a new iPhone every 12 months has been pushed to the limits this go around, especially after being teased earlier this summer about what to expect from iOS 5 (which, FYI will be available to all current iPhone 4 owners October 12th).
Conclusion: With the iPhone 4, Apple had one of the best mobile phones on the market and the iPhone 4S improves on that. It’s fast, with one of the best screens on the market and an excellent camera. One of the great things about Apple products, is their simplicity and iOS 5 makes things even better.
Pros: One of the best screens on a smartphone, Fantastic build, Thousands of apps, Improved camera, Faster processor, iCloud
Cons: Screen feels a little small, iMessage quirks, Siri not fully featured, Camera lacks features
Excerpt: Recently, the ever-wonderful and kind people at ZAGG bestowed another gift upon me. With my excited news regarding the arrival of my new iPhone 4S, they sent along a little Christmas surprise that was very much appreciated.
Summary: Contrary to what the general opinion suggests, the upgrades are significant. While the dual core processor may not give the illusion of the extra power when compared to the 4 in most usage scenarios, but the moment you open HD games, you know what you have spent the extra money for!