The iPhone 3G is a smartphone that was designed and marketed by Apple Inc. It is the second generation of iPhone, and was introduced on June 9, 2008 at the WWDC 2008 at the Moscone Center in San Francisco, United States.
The iPhone 3G was internally similar to its predecessor, but included several new hardware features, such as Assisted GPS, 3Gdata and tri-band UMTS/HSDPA. The device also benefited from software improvements introduced with iPhone OS 2.0, which was launched at the same time. As well as other features (including Push email and turn-by-turn navigation), this new operating system introduced the App Store—Apple's new distribution platform for third-party applications.
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
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
- 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
- Stereo earphones with built-in microphone
- Frequency response: 20Hz to 20,000Hz
- Impedance: 32 ohms
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