Wednesday, October 6, 2010

Iphone 4

Apple today launched iPhone 4, the fourth generation of the iPhone that uses recently announced iPhone OS 4.0. Earlier this year, a gadget blog called Gizmodo leaked iPhone 4 prototype, and they published the specifications of the iPhone 4. Today’s announcement has almost the same thing, but the name of the device is now confirmed as iPhone 4. The major features of the iPhone 4 include a new hardware design, 5MP main camera with HD video recording, highly improved display, 1GHZ apple A4 chip, new applications, improved battery life, gyroscope, and front facing camera for video calls. The device will be shipped with iPhone OS 4.0 (iOS 4.0) pre-installed.

Retina display
3.5-inch (diagonal) widescreen Multi-Touch display
960-by-640-pixel resolution at 326 ppi
800:1 contrast ratio (typical)
500 cd/m2 max brightness (typical)
Fingerprint-resistant oleophobic coating on front and back
Support for display of multiple languages and characters simultaneously

Cellular and wireless
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
802.11b/g/n Wi-Fi (802.11n 2.4GHz only)
Bluetooth 2.1 + EDR wireless technology

Assisted GPS
Digital compass

Audio playback
Frequency response: 20Hz to 20,000Hz
Audio formats supported: AAC (8 to 320 Kbps), Protected AAC (from iTunes Store), HE-AAC, MP3 (8 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, 4, Audible Enhanced Audio, AAX, and AAX+), Apple Lossless, AIFF, and WAV
User-configurable maximum volume limit

Mac system requirements
Mac computer with USB 2.0 port
Mac OS X v10.5.8 or later
iTunes 9.2 or later (free download from
iTunes Store account
Internet access

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