Global InformationIPhone 4 information
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 iPhone 4 (GSM model) in black | |
| Developer | Apple Inc. |
|---|---|
| Manufacturer | Foxconn (UMTS/GSM model) Pegatron (CDMA model)[1] |
| Slogan | "This changes everything. Again." |
| Generation | 4th |
| Model | A1332 (GSM model) A1349 (CDMA model)[2] |
| First released | GSM model (black): June 24, 2010[a] CDMA model (black): February 10, 2011[a] GSM and CDMA models (white): April 28, 2011[a] |
| Discontinued | September 10, 2013 |
| Predecessor | iPhone 3GS |
| Successor | iPhone 4S |
| Related | iPod Touch (4th generation) |
| Type | Smartphone |
| Form factor | Slate |
| Dimensions | 115.2 mm (4.54 in) H 58.6 mm (2.31 in) W 9.3 mm (0.37 in) D |
| Mass | 137 g (4.8 oz) |
| Operating system | Original: iOS 4.0 (GSM model), iOS 4.2.5 (CDMA model) Last: iOS 7.1.2, released June 30, 2014 |
| System-on-chip | Apple A4[3] |
| CPU | 1 GHz (Underclocked to 800 MHz) single core 32-bit ARM Cortex-A8 |
| GPU | PowerVR SGX535[3] |
| Memory | 512 MB LPDDR DRAM[4] |
| Storage | 8, 16, or 32 GB flash memory |
| Battery | 3.7 V, 5.3 Wh (1,420 mAh) Lithium-ion battery[5] |
| Display | 3.5 in (89 mm) diagonal 3:2 aspect ratio widescreen LED backlit IPS TFT LCD 960×640 resolution at 326 ppi (0.61 megapixels) 800:1 contrast ratio (typical) 500 cd/m2 max brightness (typical) Fingerprint-resistant oleophobic coating on front and back glass |
| Sound | Single loudspeaker 3.5 mm TRRS, frequency response: 20 Hz to 20 kHz |
| Rear camera | 5 MP back-side illuminated sensor HD video (720p) at 30 frame/s 1.75 μm size pixels 5× digital zoom 4 element lens LED flash Photo and video geotagging |
| Front camera | 0.3 MP VGA (480p) at 30 frame/s Tap to focus video or still images Photo and video geotagging |
| Connectivity | Wi-Fi (802.11 b/g/n) (2.4 GHz only) Bluetooth 2.1 + EDR GSM model: quad-band GSM/GPRS/EDGE (800, 850, 900, 1,800, 1,900 MHz) Quad-band UMTS/HSDPA/HSUPA (800, 850, 900, 1,900, 2,100 MHz) (800 MHz is not yet officially supported by Apple) CDMA model: dual-band CDMA/EV-DO Rev. A (800, 1,900 MHz) |
| Data inputs | Multi-touch touchscreen display Dual microphone 3-axis gyroscope 3-axis accelerometer Digital compass Proximity sensor Ambient light sensor |
| SAR | Model A1332 Head: 1.17 W/kg Body: 1.11 W/kg[6] Model A1349 Head: 1.18 W/kg Body: 0.87 W/kg[7] |
| Hearing aid compatibility | GSM 3G 850/1,900 MHz M4, T4 2G 850 MHz M3, T3 2G 1,900 MHz M2, T3 CDMA M4, T4 |
| Website | Apple – iPhone 4 – Video calls, multitasking, HD Video, and more at the Wayback Machine (archived October 14, 2010) |
| This article is part of a series on the |
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List of iPhone models  Telephones portal |
The iPhone 4 is a smartphone that was designed, developed, and marketed by Apple Inc. It is the fourth generation of the iPhone lineup, succeeding the iPhone 3GS and preceding the 4S. 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,[9] and was released on June 24, 2010, in the United States, United Kingdom, France, Germany, and Japan. 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.[10] 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. It was the first iPhone at the time to include a front-facing camera, which made possible Apple's new FaceTime video chat service, and the first to be released in a version for CDMA networks, ending AT&T's period as the exclusive carrier of iPhone products in the United States.
The iPhone 4 received a largely positive reception, with critics praising its revamped design and more powerful hardware, in comparison to previous models. While it was a market success (with over 600,000 pre-orders within 24 hours), the release of the iPhone 4 was plagued by highly publicized reports concerning abnormalities in its new antenna design that caused the device to lose its cellular signal if held in a certain way. Most direct contact with the phone's outer edge would cause a significant decrease in signal strength. Apple released iOS 4.0.1 to try to fix these issues, but were unsuccessful.[11]
The iPhone 4 spent the longest time as Apple's flagship iPhone model at fifteen months. Although the succeeding 4S was announced in October 2011, the 4 continued to be sold as a midrange model until September 2012, and thereafter as the entry-level offering in Apple's lineup until September 2013 with the announcement of the iPhone 5S and iPhone 5C. The iPhone 4 had one of the longest lifespans of any iPhone ever produced, spanning close to four years and available in some developing countries until early 2015.
- ^ Chen, Yenting (January 13, 2011). "CDMA iPhone to contribute strong sales to Foxconn and Pegatron in 2011". DigiTimes. Archived from the original on January 15, 2011. Retrieved January 14, 2011.
- ^ Identifying iPhone models – support.apple.com Archived September 24, 2011, at the Wayback Machine Retrieved September 21, 2011.
- ^ a b "iPhone 4 Teardown". iFixit. p. 2. Archived from the original on June 26, 2010. Retrieved June 23, 2010.
- ^ Lane, Slash (June 17, 2010). "Apple reveals iPhone 4 has 512 MB RAM, doubling iPad". AppleInsider. Archived from the original on June 26, 2010. Retrieved June 17, 2010.
- ^ "iPhone 4 Teardown". iFixit. June 23, 2010. p. 1. Archived from the original on June 28, 2010. Retrieved July 18, 2010.
- ^ "iPhone 4 RF Exposure Information (Model A1332)". Archived from the original on November 9, 2017. Retrieved November 9, 2017.
- ^ "iPhone 4 RF Exposure Information (Model A1349)". Archived from the original on November 9, 2017. Retrieved November 9, 2017.
- ^ iPhone, iPad, and iPod Touch Secrets – edepot.com Archived December 8, 2012, at archive.today Retrieved September 21, 2011.
- ^ Topolsky, Joshua (June 7, 2010). "Steve Jobs live from WWDC 2010". Engadget. Archived from the original on October 22, 2019. Retrieved June 18, 2010.
- ^ Cite error: The named reference
Definitive Guidewas invoked but never defined (see the help page). - ^ "Apple releases iOS 4.0.1 with new iPhone signal formula". Macworld. July 15, 2010. Archived from the original on May 27, 2020. Retrieved May 19, 2020.