The iPhone 3GS is a touchscreen smartphone, designed and marketed by Apple Inc.. It is the third generation iPhone, successor to the iPhone 3G. It was introduced on June 8, 2009, at the WWDC 2009 which took place at the Moscone Center, San Francisco.
Improvements include performance, a camera with higher resolution and video ability, voice control, and support for 7.2 Mbit/sHSDPA downloading (but remains limited to 384 kbps uploading as Apple had not implemented the HSUPA protocol).It was released in the U.S., Canada and six European countries on June 19, 2009, in Australia and Japan on June 26, and internationally in July and August 2009.
The iPhone 3GS runs Apple's iOS operating system, as is used on the iPad and iPod touch. It is controlled mostly by a user's fingertips on a multi-touch display.The company has supercharged the CPU of the 3GS (remember, the S is for speed), jacking up the processor numbers from 412MHz to a rumored 600MHz. Additionally, the RAM is said to have doubled from 128MB to 256MB, the phone is offered with 16GB or 32GB of storage, and Apple has swapped out the previous graphics chip for a new version -- dubbed the PowerVR SGX -- which adds support for more robust visuals via OpenGL ES 2.0. All this should mean that end users will see a noticeable difference in app speeds and loading times
The LCD display on the device was designed by Apple and made by LG. It features a capacitive touchscreen with a pixel density of 163 pixels per inch (ppi) on a 3.5 in (8.9 cm) 480-by-320 display. Improvements over its predecessor's screen include 24-bit color emulation (18-bit color display plus dithering) for a more color rich display and oleophobic coating to help reduce fingerprints on the display. The capacitive touchscreen is designed for a bare finger, or multiple fingers for multi-touch sensing.
Reviews of the iPhone 3GS have been generally mixed to favorable. Walter Mossberg of The Wall Street Journal described the device packed with "new features that makes a great product even better, but for many users, the software may be enough of a boost to keep them from buying the new model." Engadget also said that "the additions of video recording, a compass, and a speed bump just don't seem that compelling to us".
The device managed to receive numerous favorable reviews. CNET gave the iPhone 3GS 4 out of 5 stars, citing battery life improvements and speed bump. Engadget praised the performance improvements.
The 8 GB version received more favorable reviews mainly because it comes pre-installed with iOS 4. Jason Snell of Macworld praised the iPhone 3GS, saying that "the device's internal changes shines in the iOS 4 update, making the iPhone 3GS a worthwhile upgrade compared to its predecessor although a little too late compared to the iPhone 4". TIPB stated that "aside from hardware specific features like FaceTime, Retina Display, and gyroscope support, the bottom line is iPhone 3GS users are getting the same software that makes the iPhone 4 great".
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