iPhone 4 is the new gadget from  Apple Inc. Bundled with features like FaceTime and Retina Display, 5 megapixel camera with LED flash, HD video recording, iPhone 4 is the best smartrphone when it comes to the display of images and videos. FaceTime along with Retina Display have made iPhone 4 to deliver an amazing video output when it comes to video calling.

iPhone 4 Specifications:

  • 4.5 inches 2.31 inches 0.37 inch (H  X W X D )
  • 4.8 ounces (137 grams)
  • 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
  • Built-in rechargeable lithium-ion battery
  • Charging via USB to computer system or power adapter
  • Talk time of up to 7 hours on 3G
  • Talk time of up to 14 hours on 2G
  • Standby time Up to 300 hours
  • 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 oleo phobic coating on front and back
  • Support for display of multiple languages and characters simultaneously

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 fromwww.itunes.com/download)
  • iTunes Store account
  • Internet access

Windows system requirements

  • PC with USB 2.0 port
  • Windows 7; Windows Vista; or Windows XP Home or Professional with Service Pack 3 or later
  • iTunes 9.2 or later (free download fromwww.itunes.com/download)
  • iTunes Store account
  • Internet access

iPhone 4 is available in the US, UK, France, Germany and Japan. It can be purchased from US for a starting price of just $199 with a two year contract.