iPhone 3GS comes with a 3.5 inch capacitive touchscreen with multi-touch feature. The phone has 600 MHz ARM Cortex A8 processor, iOS 4, and Safari browser. It has 3MP camera with autofocus and geotagging features. Other features include A-GPS with digital compass, multitasking, and 8GB internal memory.
Multi-touch input method, Voice command, Threaded view of messages, Support for multiple languages and characters simultaneously, Predictive text input, WAP 2.0, Safari, App Store, Dictionary support, Multitasking