A (8. 00, 1,9. 00 MHz)Development status. Discontinued. Hearing aid compatibility. GSM3. G 8. 50/1,9. MHz M4, T4. 2G 8. MHz M3, T3. 2G 1,9.

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MHz M2, T3. CDMA M4, T4. Website. Official website. The i. Phone 4 is a smartphone that was designed and marketed by Apple Inc.

Following a number of notable leaks, the i. Phone 4 was first unveiled on June 7, 2. Apple's Worldwide Developers Conference in San Francisco. It is the 4th generation of i. Phone, succeeding the 3.

GS and preceding the 4. S. The i. Phone 4 introduced a new hardware design to the i. Phone family, which Apple's CEOSteve Jobs touted as the thinnest smartphone in the world at the time; it consisted of a stainless steel frame which doubles as an antenna, with internal components situated between aluminosilicate glass. The i. Phone 4 also introduced Apple's A4system- on- chip, along with i. OS 4—which notably introduced multitasking functionality and Apple's new Face.

Timevideo chat service. The i. Phone 4 was also the first i. Phone to include a front- facing camera, and the first to be released in a version for CDMA networks, ending AT& T's period as the exclusive carrier of i. Phone products in the United States. The i. Phone 4 received generally 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 6. Phone 4 was plagued by highly publicized reports that abnormalities in its new antenna design caused the device to lose its cellular signal if held in a certain way.

Most human contact with the phone's outer edge would cause a significant decrease in signal strength. The i. Phone 4 spent the longest time as Apple's flagship i. Phone model at fifteen months, and had the longest lifespan of any i. Phone ever produced, spanning close to four years and available in some developing countries until early 2. Although the 4. S was announced in 2.

History. Many of the speculations regarding technical specifications proved accurate. Engadget leak. The prototype is reported to have been lost by an Apple employee, Gray Powell, in Redwood City, California. Apple had already received the i. Phone prototype before the raid when it was returned by Gizmodo. In Israel, it was released, too, on September 2. Cellcom, Pelephone and Orange.

It was launched in Thailand on September 2. AIS, DTAC and True Move, and in Malaysia on September 2.

Kuala Lumpur, and nationwide on September 2. Maxis. The i. Phone 4 was released in South Africa on September 2. Vodacom and MTN networks, in very limited quantities. The Verizon i. Phone went on sale on February 1. February 3. The February 3, 2.

Phone 4 broke Verizon's first day sales records for a single device. There was a lot of speculation surrounding the delay of the white i. Phone 4. Among the most popular rumors are those concerning the phone's internal camera being adversely affected by light leaking in due to the semi- translucent glass and the white paint. Other sources report that the problem relates to Apple's inability to match the white color of the front face plate with that of the home button. It was replaced by the 8 GB i. Phone 4. S. The white i. Phone 4 was released in April 2.

Hardware. It features an LED backlit. TFT LCDcapacitivetouchscreen with a pixel density of 3.

Each pixel is 7. 8 micrometers in width. The display has a contrast ratio of 8. The screen is marketed by Apple as the . Raymond Soneira, president of Display.

Mate Technologies, said in an interview with Wired magazine, that the claims by Jobs are something of an exaggeration: . Soneira stated that the resolution of the human retina is higher than claimed by Apple, working out to 4. The picture will look pixellated. If you have average eyesight, the picture will look just fine. The LED flash for the rear- facing camera (top) and the forward- facing camera (bottom, left of speaker) are not present in older models.

The i. Phone 4 features an additional front- facing VGA camera, and a backside- illuminated 5 megapixel rear- facing camera with a 3. The rear- facing camera is capable of recording HD video in 7. Both cameras make use of the tap to focus feature, part of i. OS 4, for photo and video recording. In 2. 01. 2 Will. Apple to market his i. Phone 4. We have our own sensor and a better flash.

You dock your phone into our device and it turns your smartphone into a genius- phone. We take over the camera. According to the FCC documentation filed by Apple, the radio inside the i. Phone 4 supports 8.

MHz. The 8. 00 MHz frequency, which is most commonly used in Japanese mobile phones, is not advertised as being supported by Apple. It is located on the top of the unit near the headphone jack; the main microphone is on the bottom left. The gyroscope complements the accelerometer, a sensor that has been present since the original i. Phone, which detects the device's acceleration, shake, vibration shock, or fall by detecting linear acceleration along one of three axes (X, Y and Z).

The combined data from the accelerometer and the gyroscope provides detailed and precise information about the device's 6- axis movement in space. The 3 axes of the gyroscope combined with the 3 axes of the accelerometer enable the device to recognize approximately how far, fast, and in which direction it has moved in space. Processor and memory. The clock speed in the i. Phone 4 has not been disclosed. All prior models of the i.

Phone have underclocked the CPU, which typically extends battery life and lowers heat dissipation. The i. Phone 4 has 5. MB of DRAM. The additional DRAM supports increased performance and multi- tasking. On a CDMA network, however, the phone connects to the network using an ESN. All prior models have used regular mini- SIM cards. Depending on the operator, micro- SIM cards may not be available for all networks globally. As a technical workaround it is possible to trim a mini- SIM card with a knife or scissors so that it fits into the micro- SIM tray.

Unlike prior generations, the storage capacity is not printed on the back of the unit. Most notably, the bulges of the back panel as well as the band between the front and back are gone and have been replaced with flattened surfaces. The redesign reflects the utilitarianism and uniformity of existing Apple products, such as the i. Pad and the i. Mac.

The overall dimensions of the i. Phone 4 have been reduced from its predecessor. Steve Jobs claimed it to be . This metal band features two slits on the GSM version of the phone, one at the lower left, and one at the top (and a fake slit along the lower right, to cosmetically mirror the one at the lower left) that divide the band into two antenna sections: the left section of the band serves as the Bluetooth, Wi- Fi, and GPS antenna, and the right and lower sections of the band act as the antenna for GSM and UMTS connectivity. On the CDMA version of the phone there are four slits in the metal band. Two at the top (on the left and right) and two at the bottom. This divides the metal band into four different segments, which like the GSM version of the phone, serves as different antennas for connectivity.

The top portion of the band (divided by the top left and right slits) is for connecting to the CDMA network. The left portion of the metal band is for Bluetooth, Wi- Fi, and GPS just like the GSM version. The right side is not an antenna, but serves to cosmetically mirror the left side and also to create a similar look to the GSM version of the phone.

The internal components are situated between two panels of aluminosilicate glass, described by Apple as being . Due to the relatively aged hardware of the i. Phone 4, certain features available on newer i. Phone models are not available on the device; as of i. OS 7, they include Siri, 3. How To Install Crossover Tweeters Hummer. D maps and turn- by- turn navigation, Air.

Drop, Air. Play mirroring, live camera filters, panorama mode and certain visual effects introduced by i. OS 7, such as the blurring of translucent interface elements, the parallax effect on the home screen, and live wallpapers.

Along with our coverage of the event, we collected a fairly large amount of photos of both devices. All these photos are publicly available on Apple. Without further ado, here is the i. Phone 6 and i. Phone 6 Plus photo gallery.