Although the iPhone 4S* looks like the iPhone 4 before it, it is considerably more powerful and most notably unveils a new voice-controlled intelligent assistant named Siri.

Like the iPhone 4, the iPhone 4S uses the same all stainless steel body design with an ultra high-density 3.5-inch, IPS, LED-backlit 960×640 326 ppi multi-touch retina display, dual noise-cancelling microphones, mobile and data antennas integrated in the metal band that wraps around the sides of the phone, and a chemically hardened aluminosilcate glass front over both the display and a black or white frame and the chemically hardened black glass back, too. Both the front and back have an oleophobic oil repellent coating, as well.

However, the iPhone 4S is a world phone, supporting both GSM and CDMA networks (UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz), and CDMA EV-DO Rev. A (800, 1900 MHz), and the antenna automatically switches between send and receive. It supports 802.11b/g/n, Bluetooth 4.0, and HSDPA of up to 14.4 Mbps, too.

The iPhone 4S also has dual cameras — an 8 megapixel HD video/still camera (1080p at 30 FPS) with a backside illuminated sensor, and an LED flash on the rear and a VGA quality video/still camera on the front designed for video conferencing over a Wi-Fi network with Apple’s included FaceTime application.