The iPhone 4 introduced Apple's new high-resolution ' Retina Display' (with a pixel density of 326 pixels per inch), while maintaining the same physical size and aspect ratio as its precursors, Apple's A4 system-on-chip, along with iOS 4-which notably introduced multitasking functionality and app folders. The iPhone 4 introduced a new hardware design to the iPhone family, which Apple's CEO Steve Jobs touted as the thinnest smartphone in the world at the time it consisted of a stainless steel frame which doubled as an antenna, with internal components situated between two panels of aluminosilicate glass.

Following a number of notable leaks, the iPhone 4 was first unveiled on June 7, 2010, at Apple's Worldwide Developers Conference in San Francisco, and was released on June 24, 2010, in the United States, United Kingdom, France, Germany, and Japan. It is the fourth generation of the iPhone lineup, succeeding the iPhone 3GS and preceding the 4S. The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. A (800, 1,900 MHz)Īpple – iPhone 4 – Video calls, multitasking, HD Video, and more at the Wayback Machine (archived October 14, 2010) Last: iOS 7.1.2, released June 30, 2014 ( )ġ GHz (Underclocked to 800 MHz) single core 32-bit ARM Cortex-A8ģ.7 V, 5.3 Wh (1,420 mAh) Lithium-ion battery ģ.5 in (89 mm) diagonal 3:2 aspect ratio widescreenĩ60×640 resolution at 326 ppi (0.61 megapixels)įingerprint-resistant oleophobic coating on front and back glassģ.5 mm TRRS, frequency response: 20 Hz to 20 kHz Original: iOS 4.0 (GSM model), iOS 4.2.5 (CDMA model) GSM and CDMA models (white): Ap 12 years ago ( April 28, 2011)

GSM model (black): J 13 years ago ( June 24, 2010) ĬDMA model (black): Febru 12 years ago ( February 10, 2011)

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