iphone 4 is Officially Announced

After lots of controversies after the leak of the iphone 4, Apple officially announced the iphone 4. The iphone has revolutionized many things among smartphones. This version of the iphone is packed with many features.

It has Video calling, High resolution display, Multitasking, 5 mega pixel camera, HD video recording and lots of exciting new features.

Tech Specs

Size and weight

Height:
4.5 inches (115.2 mm)
Width:
2.31 inches (58.6 mm)
Depth:
0.37 inch (9.3 mm)
Weight:
4.8 ounces (137 grams)

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

Location

  • Assisted GPS
  • Digital compass
  • Wi-Fi
  • Cellular

Power and battery

  • Built-in rechargeable lithium-ion battery
  • Charging via USB to computer system or power adapter
  • Talk time:
    Up to 7 hours on 3G
    Up to 14 hours on 2G
  • Standby time: Up to 300 hours
  • Internet use:
    Up to 6 hours on 3G
    Up to 10 hours on Wi-Fi
  • Video playback: Up to 10 hours
  • Audio playback: Up to 40 hours

    Environmental requirements

    • Operating temperature: 32° to 95° F
      (0° to 35° C)
    • Nonoperating temperature: -4° to 113° F
      (-20° to 45° C)
    • Relative humidity: 5% to 95% noncondensing
    • Maximum operating altitude: 10,000 feet (3000 m)

    Capacity

    • 16GB or 32GB flash drive

    Color

    • White or black

    Display

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

    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

    TV and video

    • Video formats supported: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
    • Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable (cables sold separately)

    Languages

    • Language support for English (U.S.), English (UK), French (France), German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese, Russian, Polish, Turkish, Ukrainian, Hungarian, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Catalan, and Vietnamese
    • Keyboard support for English (U.S.), English (UK), French (France), French (Canadian), French (Switzerland), German, Traditional Chinese (Handwriting, Pinyin, Zhuyin, Cangjie, Wubihua), Simplified Chinese (Handwriting, Pinyin, Wubihua), Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Estonian, Hungarian, Icelandic, Lithuanian, Latvian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malay, Romanian, Slovak, Croatian, Bulgarian, Serbian (Cyrillic/Latin), Catalan, and Vietnamese
    • Dictionary support (enables predictive text and autocorrect) for English (U.S.), English (UK), French, German, Traditional Chinese, Simplified Chinese, Dutch, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Danish, Swedish, Finnish, Norwegian, Korean, Japanese (Romaji), Japanese (Kana), Russian, Polish, Turkish, Ukrainian, Hungarian, Lithuanian, Flemish, Arabic, Thai, Czech, Greek, Hebrew, Indonesian, Malaysian, Romanian, Slovak, Croatian, Catalan, and Vietnamese

    Camera, photos, and video

    • Video recording, HD (720p) up to 30 frames per second with audio
    • 5-megapixel still camera
    • VGA-quality photos and video at up to 30 frames per second with the front camera
    • Tap to focus video or still images
    • LED flash
    • Photo and video geotagging

    External buttons and controls

    Sensors

    • Three-axis gyro
    • Accelerometer
    • Proximity sensor
    • Ambient light sensor

    Connectors and input/output

    Headphones

    • Apple Earphones with Remote and Mic
    • Frequency response: 20Hz to 20,000Hz
    • Impedance: 32 ohms

    Mail attachment support

    • Viewable document types: .jpg, .tiff, .gif (images); .doc and .docx (Microsoft Word); .htm and .html (web pages); .key (Keynote); .numbers (Numbers); .pages (Pages); .pdf (Preview and Adobe Acrobat); .ppt and .pptx (Microsoft PowerPoint); .txt (text); .rtf (rich text format); .vcf (contact information); .xls and .xlsx (Microsoft Excel)

    Steve jobs introducing iphone

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