Apple iPhone 3G

The iPhone 3G supports 3G. It's also is a HSDPA phone, which makes it 3.5G. In addition, the iPhone 3G's tri-band UMTS support, plus quad-band GSM, GPRS and EDGE data means that the iPhone 3G should be able to give high-speed data access pretty much anywhere in the world.

Display
3.5-inch (diagonal) widescreen Multi-Touch display
480-by-320-pixel resolution at 163 ppi
Support for display of multiple languages and characters simultaneously

Audio
Frequency response: 20Hz to 20,000Hz
Audio formats supported: AAC, Protected AAC, MP3, MP3 VBR, Audible (formats 1, 2, and 3), Apple Lossless, AIFF, and WAV
User-configurable maximum volume limit

Headphones
Stereo earphones with built-in microphone
Frequency response: 20Hz to 20,000Hz
Impedance: 32 ohms