• Apple A5 processor - the same processor used in the iPad 2, which Apple says will make the iPhone 4S about twice as fast as the iPhone 4
• New dual-core graphics chip, which Apple touts as up to 7 times faster the iPhone 4
• GSM and CDMA compatibility in a single phone, meaning that the same phone will work on both kinds of networks, rather than requiring separate devices for AT&T and Verizon networks, as the iPhone 4 did
• Two antennas which work independently, to improve call quality and reliability
• Improved data speed, at up to 14.4 Mbps download (HSDPA)
• 8 megapixel camera, with improved color fidelity and sharpness, better whites, a new light sensor, faster speed in taking both the first photo and subsequent ones
• 1080p HD video recording with image stabilization

iPhone 4S Software Features

Significant software additions in the 4S include:

• Siri voice recognition
• AirPlay Mirroring
• Cards app
• Find My Friends app
• iOS 5 & iCloud support

Other elements of the phone are the same as on the iPhone 4, including the Retina Display screen, A-GPS, Bluetooth, audio and video support, and more.