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From The Apple Wiki
iPhone 4 (iPhone3,1)

This is the iPhone 4 (iPhone3,1). Announced on WWDC keynote in June 2010 (2010-06). It features a new exterior design, 5-megapixel camera with LED flash, the 960x640 Retina display screen and FaceTime Video Calls. It runs iOS 4.0 and later, with its last update being iOS 7.1.2.

Application Processor

The iPhone 4 makes use of Apple A4 CPU, same as the iPad, iPod touch (4th generation), and Apple TV (2nd generation). However, it ships with 512 MB of RAM, double that of the other A4-based devices. [1]

Baseband Device

It uses the X-Gold 618.


The iPhone 4 uses Broadcom's BCM4750 single-chip GPS receiver, like the iPad. [2]


The iPhone 4 uses the BCM4329 for Bluetooth and Wi-Fi communication.


  • Display: 3.5" 960x640 LED-backlit IPS display at 326 ppi
  • Size: 4.5 inches (115.2 mm) (height), 2.31 inches (58.6 mm) (width), 0.37 inches (9.3 mm) (depth)
  • Color: Black or White
  • Battery: Standby up to 300 hours, talk time up to 7 hours on 3G and up to 14 hours on 2G
  • Weight: 135 g (4.8 oz)
  • Rear camera: 5 MP with Autofocus and manual focus (Tap to focus), supporting HD video recording at 30 FPS
  • Front camera: VGA photos and 720p videos at 30 FPS, FaceTime Video Calls supported
  • SIM Card: Micro-SIM
  • Connector: 30-pin

Major Upgrades/Difference from iPhone 3GS

The iPhone 4 Cameras
  • Retina display with 960x640 pixel at 326 ppi
  • New design
  • A4 processor
  • RAM upgrade to 512 MB
  • Gyroscope
  • Totally new baseband device, firmware, and bootloader
  • Two cameras: front (640×480 VGA) and back (5 megapixel)
  • Back camera has a LED Flash.
  • WiFi support for 802.11n, but 2.4 GHz only