This is the official Apple iPhone 3GS User Guide in English provided from the manufacturer. If you are looking for detailed technical specifications, please see our Specs page.
Apple iPhone 3GS adds support for HSDPA 7.2 Mbps fast data and a digital compass. The new model from Cupertino's factory also has an improved battery life and working speed - loading is much more faster. The camera is upgraded to a 3-megapixel sensor with autofocus and tap to focus option and is capable of video recording with a VGA resolution (640x480 pixels). In the other aspects, Apple iPhone 3GS is pretty much the same as the previous version and has a 3.5" multi-touch display with resolution of 480x320 pixels, Wi-Fi, GPS and it has the same size.