iPhone 4 Technical Specs:

Size and weight3

Height :  4.5 inches (115.2 mm)
Width : 2.31 inches (58.6 mm)
Dept h : 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 battery4

    * 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

Mac system requirements

    * Mac computer with USB 2.0 port
    * Mac OS X v10.5.8 or later
    * iTunes 9.2 or later
    * 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     * iTunes Store account
    * Internet access

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 drive1

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

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

    * Sleep/wake
    * Ring/silent
    * Volume up/down
    * Home

Sensors

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

Connectors and input/output

    * 30-pin dock connector
    * 3.5-mm stereo headphone minijack
    * Built-in speaker
    * Microphone
    * Micro-SIM card tray

Headphones

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

In the box

    * iPhone 4
    * Apple Earphones with Remote and Mic
    * Dock Connector to USB Cable
    * USB Power Adapter
    * Documentation