iPhone 4 Technical Specifications

Size and weight

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

Display

    * Retina display
    * 3.5-inch (diagonal) widescreen Multi-Touch display
    * 960x640-pixel resolution at 326 ppi
    * 800:1 contrast ratio (typical)
    * Fingerprint-resistant oleophobic coating front and back
    * Support for display of multiple languages and characters simultaneously



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

Capacity

    * 16GB or 32GB flash drive



Cellular and wireless

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

Sensors

    * 3-axis gyro
    * Accelerometer
    * Proximity sensor
    * Ambient light sensor


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


Headphones

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