IPhone 4

The **iPhone 4** is a smartphone made by Apple. It was first released on June 24, 2010. It was the first iPhone to include a front-facing camera and retina screen.

The iPhone 4 was praised for being much more powerful than its previous models. It was also highly praised for its new design. However, it was criticized widely for occasionally reducing the strength of cellular data from calls if the user's hand covers the bottom-left of the phone.

## Infobox (mobile phone)

- **name**: iPhone 4
- **logo**:
- **image**: IPhone 4 Mock No Shadow PSD.png
- **imagesize**: 200px
- **alt**: Black iPhone 4
- **caption**: iPhone 4 (GSM model) in black
- **developer**: Apple Inc., Apple
- **manufacturer**: Foxconn (UMTS/GSM model)
 Pegatron (CDMA model)
- **type**: Smartphone
- **form**: Mobile phone form factors#Touchscreen/Slate, Slate
- **serieslabel**: History of iPhone, Generation
- **series**: 4th
- **modelnumber**: A1332 (GSM model or 8 GB model)
A1349 (CDMA model)
- **releasedate**: **GSM model (black):**
**CDMA model (black):**
**GSM and CDMA models (white):**
**8 GB models:**
- **os**: **Original:** iOS 4, iOS 4.0 (GSM model), iOS 5.0 (8 GB model), iOS 4#4.2.10, iOS 4.2.10 (CDMA model)
** Last:** iOS 7#7.1.2, iOS 7.1.2, released
- **battery**: 3.7 V, 5.3 W⋅h (1420 mA⋅h) Lithium-ion battery
- **soc**: Apple A4
- **cpu**: 1 GHz (Underclocked to 800 MHz) single core 32-bit ARM Cortex-A8
- **gpu**: PowerVR PowerVR#Series5 (SGX), SGX535
- **storage**: 8, 16, or 32 gigabyte, GB flash memory
- **memory**: 512 megabyte, MB LPDDR DRAM
- **display**: diagonal 3:2 aspect ratio widescreen
 LED backlit TFT LCD#In-plane switching, IPS TFT LCD
 960×640 image resolution, resolution at 326 pixel density, ppi (0.61 megapixels)
 800:1 contrast ratio (typical)
 500 luminance, cd/m<sup>2</sup> max brightness (typical)
 Fingerprint-resistant lipophobicity, oleophobic coating on front and back glass
- **sound**: Single loudspeaker
 3.5 mm TRS connector, TRRS, frequency response: 20 Hertz, Hz to 20 kilo-, kHz
- **input**: Multi-touch touchscreen display
 Dual microphone
 3-axis gyroscope
 3-axis accelerometer
 Digital data, Digital magnetometer, compass
 Proximity sensor
 photodetector, Ambient light sensor
- **rear camera**: 5 megapixel, MP backside illumination, back-side illuminated sensor
 high-definition video, HD video (720p) at 30 frame rate, frame/s
 1.75 micrometre, μm size pixels
 5× digital zoom
 4 photographic lens design#Lens elements, element lens
 light-emitting diode, LED flash (photography), flash
 Photo and video geotagging
- **front camera**: 0.3 MP Video Graphics Array, VGA (480p) at 30 fps

Tap to focus video or still images
 Photo and video geotagging
- **connectivity**: Wi-Fi (IEEE 802.11, 802.11 IEEE 802.11b-1999, b/IEEE 802.11g-2003, g/IEEE 802.11n-2009, n)
 Bluetooth#Bluetooth 2.1 + EDR, Bluetooth 2.1 + EDR
**GSM model:** multi-band, quad-band GSM/General Packet Radio Service, GPRS/Enhanced Data Rates for GSM Evolution, EDGE
 (GSM frequency bands, 800, 850, 900, 1800, 1900 Hertz, MHz)
 Quad-band Universal Mobile Telecommunications System, UMTS/High-Speed Downlink Packet Access, HSDPA/High-Speed Uplink Packet Access, HSUPA
 (UMTS frequency bands, 800, 850, 900, 1900, 2100 MHz) (800 MHz is not yet officially supported by Apple)
**CDMA model:** multi-band, dual-band code division multiple access, CDMA/EV-DO Rev. A (800, 1900 MHz)
- **dimensions**: H
 W
 D
- **predecessor**: iPhone 3GS
- **successor**: iPhone 4S
- **related**: iPod Touch (4th generation)