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Iphone 4 White Descriptive Essay

iPhone 4 in Black

DeveloperApple Inc.
ManufacturerFoxconn (UMTS/GSM model)
Pegatron (CDMA model)[1]
Slogan"This changes everything. Again."
Generation4th
ModelA1332 (GSM model)
A1349 (CDMA model)[2]
First releasedGSM model (black): June 24, 2010[a]
CDMA model (black): February 10, 2011[a]
GSM and CDMA models (white): April 28, 2011
DiscontinuedSeptember 10, 2013 (2013-09-10)
PredecessoriPhone 3GS
SuccessoriPhone 4S
RelatediPad, iPod Touch (comparison)
TypeSmartphone
Form factorSlate
Dimensions115.2 mm (4.54 in) H
58.6 mm (2.31 in) W
9.3 mm (0.37 in) D
Weight137 g (4.8 oz)
Operating systemOriginal:iOS 4.0 (GSM model), iOS 4.2.5 (CDMA model)
Last:iOS 7.1.2, released June 30, 2014 (2014-06-30)
System on chipApple A4[3]
CPU1 GHz (Underclocked to 800 MHz) single core 32-bit ARM Cortex-A8"Hummingbird"
GPUPowerVRSGX535[3]
Memory512 MBDRAM[4]
Storage8, 16, or 32 GBflash memory
Battery3.7 V, 5.3 Wh (1,420 mAh) Lithium-ion battery[5]
Data inputsMulti-touchtouchscreen display
Dual microphone
3-axis gyroscope
3-axis accelerometer
Digitalcompass
Proximity sensor
Ambient light sensor
Display3.5 in (89 mm) diagonal 1.5:1 aspect ratio widescreen
LED backlitIPS TFT LCD
960×640 resolution at 326 ppi (0.61 megapixels)
800:1 contrast ratio (typical)
500 cd/m2 max brightness (typical)
Fingerprint-resistant oleophobiccoating on front and back glass
Rear camera5 MPback-side illuminated sensor
HD video (720p) at 30 frame/s
1.75 μm size pixels
5× digital zoom
4 element lens
LEDflash
Photo and video geotagging
Front camera0.3 MP VGA (480p) at 30 frame/s

Tap to focus video or still images
Photo and video geotagging
SoundSingle loudspeaker
3.5 mm TRRS, frequency response: 20 Hz to 20 kHz
ConnectivityWi-Fi (802.11b/g/n) (2.4 GHz only)
Bluetooth 2.1 + EDR
GSM model:quad-bandGSM/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-bandCDMA/EV-DO Rev. A (800, 1,900 MHz)
SARModel 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 compatibilityGSM
3G 850/1,900 MHz M4, T4
2G 850 MHz M3, T3
2G 1,900 MHz M2, T3
CDMA M4, T4
WebsiteOfficial website

The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. 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,[8] and was released on June 24, 2010, in the United States, United Kingdom, France, Germany and Japan. It is the 4th generation of iPhone, succeeding the 3GS and preceding the 4S.

The iPhone 4 introduced a new hardware design to the iPhone 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.[9] The iPhone 4 also 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. The iPhone 4 also introduced Apple's A4system-on-chip, along with iOS 4—which notably introduced multitasking functionality and Apple's new FaceTimevideo chat service. The iPhone 4 was also the first iPhone 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 iPhone products in the United States.

The iPhone 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 600,000 pre-orders within 24 hours, the release of the iPhone 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 iPhone 4 spent the longest time as Apple's flagship iPhone model at fifteen months, and had the longest lifespan of any iPhone ever produced, spanning close to four years and available in some developing countries until early 2015. Although the succeeding 4S was announced in September 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/iPhone 5C.

History[edit]

Further information: History of iPhone

Prototypes[edit]

Before the official unveiling of the iPhone 4 on June 7, 2010, two prototypes were brought to the attention of the media, breaching Apple's normally secretive development process. Many of the speculations regarding technical specifications proved accurate.

Engadget leak[edit]

On January 27, 2010, gadget website Engadget received leaked images of the unreleased iPad.[10] Unbeknownst to the editors and readers these images contained two of the unreleased iPhone 4's.[11] It wasn't until the subsequent Gizmodo release were they aware of the complete contents of the images.[12]

Gizmodo leak[edit]

On April 19, 2010, gadget website Gizmodo reported that they had purchased an iPhone prototype for $5000, and furthermore, had conducted a product teardown of the device. The prototype is reported to have been lost by an Apple employee, Gray Powell, in Redwood City, California.[13] Shortly after Gizmodo published detailed information about the prototype, Apple's legal associates formally requested for the phone to be returned to Apple, and Gizmodo responded with the intent to cooperate.[14]

On April 23, officers from the Rapid Enforcement Allied Computer Team (REACT) task force of the California HTTAP Program raided the home of Jason Chen, the Gizmodo editor responsible for reviewing the prototype, seizing all of his computers and hard drives.[15] The Electronic Frontier Foundation criticized the raid as violating journalist source protection laws that forbid the seizure of journalist computers as well as the suspicion that Apple had used its influence as a member of the steering committee which is charged with direction and oversight of the California REACT task force to push police into action in a way that would not normally be conducted for this type of incident. Apple had already received the iPhone prototype before the raid when it was returned by Gizmodo.[16] The District Attorney has stated that the investigation has been suspended, and discontinued searching through the Gizmodo editor's belongings as they determine whether the shield laws are applicable, and cautioned that no charges have been issued at this point.[17][18]

Taoviet leak[edit]

Pictures and video of a second prototype were published on a Vietnamese website, Taoviet, on May 12, 2010.[19] It was almost identical to the first, and used an A4 chip manufactured by Apple.[20] The website purchased the prototype for $4,000.[21]DigiTimes reported that the screen resolution of the new phone was 960-by-640, which was confirmed by Apple at the iPhone 4's official announcement.

Release[edit]

The iPhone 4 was available for pre-order on June 15, 2010.[22] Customers attempting to pre-order the iPhone 4 reported problems with the pre-order process on the US and UK online Apple Stores which crashed due to the surge in traffic.[23] The same issue was reported with AT&T and SoftBank, Apple's exclusive partners in the United States and Japan respectively, who suspended advance sales of the iPhone 4 as demand threatened to exceed supply.[24] Retail stores were also unable to complete pre-order transactions due to the servers crashing.[25]

Apple and its partner carriers received 600,000 pre-orders for the iPhone 4 in the first 24 hours, the largest number of pre-orders Apple had received in a single day for any device up to that point.[26]Engadget reported that at 20:30 UTC, all iPhone 4 pre-order suppliers had sold out.[27] 1.7 million iPhone 4s were sold in its first three days of availability.[28]

The iPhone 4 has also been released through Orange in Tunisia and was available in eight cities at the launch.[29] On July 30, 2010, iPhone 4 was made available for sale in Australia, New Zealand and 15 other countries with free bumper cases.[30][31] In South Korea, it was released by KT on September 10. In Israel, it was released, too, on September 24, through Cellcom, Pelephone and Orange. It was launched in Thailand on September 23 by AIS, DTAC and True Move, and in Malaysia on September 26 in Kuala Lumpur, and nationwide on September 27 according to the website of Maxis.

The iPhone 4 was released in South Africa on September 22 on the Vodacom and MTN networks, in very limited quantities.[32] The iPhone 4 was launched in Vietnam on September 30 on VinaPhone and Viettel, at first in 3 major cities: Hanoi, Ho Chi Minh city and Da Nang, and then all over the country by the end of October.[33][34]

The iPhone 4 was launched in India on May 27, 2011 by Aircel and Airtel.[35]

On January 11, 2011, Verizon Wireless announced during a media event that it had reached an agreement with Apple and would begin selling a CDMA iPhone 4 in the United States, ending Apple's exclusivity agreement with AT&T. The Verizon iPhone went on sale on February 10 and pre orders began on February 3.[36][37][38] The Verizon iPhone includes the 'Personal Hotspot" feature which allows a user to use the iPhone as a wireless hotspot, with up to five devices connecting at one time. The February 3, 2011, presale of the iPhone 4 broke Verizon's first day sales records for a single device.[39]

On June 24, 2010, Apple issued a statement that the white iPhone 4 models were proving more "challenging to manufacture" than expected, and initially pushed the release date back to the second half of July. There was a lot of speculation surrounding the delay of the white iPhone 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.[40][not in citation given] On April 27, 2011, Apple announced that it would be releasing the white iPhone 4 model on April 28, 2011, for both GSM and CDMA.[41] The release of the white iPhone 4 was carried out on April 28.[42][43]

During Apple's official unveiling of the iPhone 4S on October 4, 2011, it was announced that Sprint would begin carrying the reconfigured CDMA iPhone 4 and the iPhone 4S in the US on October 14.[44][45]

Discontinuation[edit]

In September 2013, after the release of the iPhone 5S and iPhone 5C, Apple stopped selling the iPhone 4 in most of their stores as well as on their website. It was replaced by the 8 GB iPhone 4S.[46][47][48]

Hardware[edit]

See also: iPhone Hardware

Display[edit]

See also: Retina Display

The display of the iPhone 4 is manufactured by LG under an exclusive contract with Apple. It features an LED backlitTFT LCDcapacitivetouchscreen with a pixel density of 326 pixels per inch (ppi) on a 3.5 in (8.9 cm) (diagonally measured), 960×640 display. Each pixel is 78 micrometers in width. The display has a contrast ratio of 800:1. The screen is marketed by Apple as the "Retina display", based on the assertion that a display of approximately 300 ppi at a distance of 305 millimetres (12 in) from one's eye, or 57 arcseconds per pixel[49] is the maximum amount of detail that the human retina can perceive.[50] With the iPhone expected to be used at a distance of about 12 inches from the eyes, a higher resolution would allegedly have no effect on the image's apparent quality as the maximum potential of the human eye has already been met.

This claim has been disputed. Raymond Soneira, president of DisplayMate Technologies, said in an interview with Wired magazine, that the claims by Jobs are something of an exaggeration: "It is reasonably close to being a perfect display, but Steve pushed it a little too far". Soneira stated that the resolution of the human retina is higher than claimed by Apple, working out to 477 ppi at 12 inches (305 mm) from the eyes, or 36 arcseconds per pixel.[51]

However, Phil Plait, author of Bad Astronomy, whose career includes a collaboration with NASA regarding the camera on the Hubble Space Telescope, responded to the criticism by stating that "if you have [better than 20/20] eyesight, then at one foot away the iPhone 4's pixels are resolved. The picture will look pixellated. If you have average eyesight, the picture will look just fine".[52][53]

Camera[edit]

The iPhone 4 features an additional front-facing VGA camera, and a backside-illuminated 5 megapixel rear-facing camera with a 3.85 mm f/2.8 lens[54][1] and an LED flash. The rear-facing camera is capable of recording HD video in 720p at 30 frames per second. Both cameras make use of the tap to focus feature, part of iOS 4, for photo and video recording.[55] The rear-facing camera has a 5× digital zoom. In 2012 Will.i.am obtained a licence from Apple to market his i.am+ camera for the iPhone 4. He said, "This thing turns the eight-megapixel iPhone camera into a 14-megapixel camera. 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."[56]

Connectivity[edit]

In contrast to Steve Jobs' announcement at WWDC 2010, recent Federal Communications Commission documentation has shown that the iPhone 4 contains a penta-band3GUMTS antenna, not a quad-band 3G UMTS radio, as advertised by Apple. According to the FCC documentation filed by Apple, the radio inside the iPhone 4 supports 800, 850, 900, 1,900, and 2,100 MHz. The 800 MHz frequency, which is most commonly used in Japanese mobile phones, is not advertised as being supported by Apple.[57] However, the 800 MHz band is a subset of the 850 MHz band, which probably explains why the device is advertised as quad-band.[citation needed] The chip-sets were manufactured by Skyworks Solutions[58] and Infineon for GSM version.

As with most of Apple's mobile products at the time, the iPhone 4 also used the 30 pin dock connector as its only external data port.

The iPhone 4 is the first generation of iPhone to have a second microphone used for noise cancellation. It is located on the top of the unit near the headphone jack; the main microphone is on the bottom left.[59]

Gyroscope and accelerometer[edit]

The iPhone 4 introduces a gyroscopic sensor that detects 3-axis angular acceleration around the X, Y and Z axes, enabling precise calculation of yaw, pitch, and roll. The gyroscope complements the accelerometer, a sensor that has been present since the original iPhone, 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[edit]

The iPhone 4 is powered by the Apple A4 chip, which was designed by Intrinsity[61] and, like all prior iPhone models, manufactured by Samsung.[62] This system-on-a-chip is composed of an ARM Cortex-A8CPU integrated with a PowerVR SGX535GPU.[63] The Apple A4 is also used in the iPad where it is clocked at its rated speed of 1 GHz. The clock speed in the iPhone 4 has not been disclosed. All prior models of the iPhone have underclocked the CPU, which typically extends battery life and lowers heat dissipation.

The iPhone 4 has 512 MB of DRAM. The additional DRAM supports increased performance and multi-tasking.[64]

Storage and micro-SIM[edit]

The iPhone 4 uses a micro-SIM card on iPhone 4 devices running on a GSM network, which is positioned in an ejectable tray, located on the right side of the device. 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.[65]

As on prior models, all data is stored in flash memory, 8, 16 or 32 GB, and not on the SIM. Unlike prior generations, the storage capacity is not printed on the back of the unit.

Design[edit]

The iPhone 4 features a redesigned structure, designed by Jonathan Ive, a design that would later be reused and adapted for the iPhone 4S, 5, 5S and SE. 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 iPad and the iMac. The overall dimensions of the iPhone 4 have been reduced from its predecessor.[66]

It is 115 millimetres (4.5 in) high, 58.6 millimetres (2.31 in) wide, and 9.4 millimetres (0.37 in) deep, compared to the iPhone 3GS, which is 116 millimetres (4.6 in) high, 62 millimetres (2.4 in) wide, and 12 millimetres (0.47 in) deep; making the iPhone 4 24% thinner than its predecessor, the iPhone 3GS. Steve Jobs claimed it to be "the thinnest smartphone on the planet."[66] The reduced size of the device is primarily due to the externally placed antenna.

The iPhone 4 is structured around a stainless steel frame that wraps around the edge of the phone, acting both as the primary structure for the device and as the iPhone 4's antennas. 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 "chemically strengthened to be 20 times stiffer and 30 times harder than plastic," theoretically allowing it to be more scratch resistant and durable than the prior models.[9]

In fall 2010, pentalobe screws started to replace the Philips screws used in post-repair units in the US and in production units in Japan.[67]

Software[edit]

See also: iOS, iOS 4, iOS 5, iOS 6, and iOS 7

Further information: iOS version history

The iPhone 4 shipped with iOS 4, which was the newest version of Apple's iOSmobile operating system at the time. iOS 4 introduced a multitasking system, allowing apps to remain "suspended" in memory, perform certain operations in the background, and allowing users to switch between apps using an on-screen menu.[68] It also introduced FaceTime, which allows users to perform video calls between other iPhone, iPad, iPod Touch, and OS X users.

The iPhone 4 supports up to iOS 7, released in September 2013. Due to the relatively aged hardware of the iPhone 4, certain features available on newer iPhone models are not available on the device; as of iOS 7, they include Siri, 3D maps and turn-by-turn navigation, AirDrop, AirPlay mirroring, live camera filters, panorama mode and certain visual effects introduced by iOS 7, such as the blurring of translucent interface elements, the parallax effect on the home screen, and live wallpapers.[69] While still subject to the same limitations, iOS 7.1 did bring some slight performance improvements to the operating system on the iPhone 4. iOS 7, specifically iOS 7.1.2, is the last version of iOS to support the iPhone 4. Unlike the iPhone 4s, the iPhone 4 did not receive the iOS 8 update due to performance issues.[70][71]

Accessories[edit]

Bumper[edit]

An iPhone 4 Bumper is a ring of rubber and plastic that surrounds the edge of the iPhone 4, with the purpose of protecting the phone. The inner part is rubber with the external band made of plastic. The Bumper wraps around the edges of the device protecting the edges, and to a lesser extent, the screen. The Bumper does not cover the front or rear of the phone, though it does slightly raise the iPhone off whatever surface it is sitting on.[72]

Additionally, the plastic band houses metallic buttons for the volume controls and sleep/wake button. The six holes in the Bumper enable access to the mute switch, dock connector, headphone jack, speaker, and microphones.[72]

Apple updated the bumper with a wider volume switch hole with the release of iPhone 4 for CDMA network. The updated bumper is also compatible with iPhone 4S, the next generation iPhone that has the identical exterior design and measurements as iPhone 4 CDMA.

Reception[edit]

Pre-release[edit]

Pre-release reception was generally positive.[73] The announcement included information that had not been covered by Gizmodo. Fox News commented that "seeing it in action is far more informative than staring at Gizmodo's photos of a busted test unit".[74]Rhodri Marsden of The Independent said that "aside from the introduction of face-to-face video calling, it's not a staggering feature set," instead focusing on how the device is "more powerful than its predecessor, speedier, easier to use and will make previously laborious tasks seem like a cinch".[75]

CNET reacted to the announcement by explaining how it believes that iMovie for iOS was the "most exciting part of this year's WWDC Keynote". The article noted how the iPhone 4, unlike current cameras, can record HD content and then edit it from the same device, labeling it a "true mobile editing suite".[76]

Reviews[edit]

Reviews of the iPhone 4 have been generally favorable. Walt Mossberg of The Wall Street Journal called the device "the best device in its class".[77]Engadget named it the "best smartphone on the market" in June 2010.[78]CNET gave the iPhone 4 a rating of 8.6 out of 10, one of the highest ratings it has given any smartphone.[79]TechRadar gave the device 4.5/5 stars.[80] Consumer Reports said the signal problem was the reason they did not rate it a "recommended" model, although the other tests ranked it highest among smart phones.[81]

Joshua Topolsky of Engadget described the device's industrial design as being "more detailed and sophisticated" than its predecessor.[78]

Technical problems[edit]

Some users reported a yellow discoloration of the screen that disappeared after several days, which was attributed to the glass lamination glue that was used. It did not have time to dry fully before the unit reached consumers due to the speed of manufacturing.[82] Another issue reported by some users within days of the iPhone 4 release was that during calls the proximity sensor can be insensitive, so that facial contact with the touchscreen can end calls, mute calls, and dial other numbers.[83] Some users reported that, particularly in low-light conditions, photos taken on the iPhone 4 sometimes contained blue or green "splotches." Issues with white balance were also discovered, particularly when using the flash.[84][85]

Antenna[edit]

Shortly after the iPhone 4 was launched, some consumers reported that signal strength of the phone was reduced when touching the lower left edge of the phone, bridging one of the two locations which separates the two antennas, resulting in dropped calls in some areas with lower signal reception.[86][87][88] In response, Apple issued a statement advising that customers should "avoid gripping [the phone] in the lower left corner" when making or receiving a call.[89]

As a consequence of this problem, it was reported on July 2, 2010 that several iPhone 4 users were planning on suing Apple and AT&T for fraud by concealment, negligence, intentional misrepresentation and defective design. The legal challenge was started by a law firm, who set up a website to recruit disenchanted iPhone 4 buyers for a lawsuit against Apple.[90][91] Later that day, Apple issued another statement stating that it had discovered the cause of the "dramatic drop in bars".[92]

Apple explained how the formula it used to calculate the number of bars to display was "wrong". Apple promised to correct the issue and release a software update within a few weeks that would address the "mistake", which had been present since the original iPhone.[92]The New York Times commented that "the failure to detect this longstanding problem earlier is astonishing."[93]

Consumer Reports initially stated that the iPhone 4's signal issues are not "unique, and may not be serious" and it continued to mention that signal loss is a problem that is faced by the entire smartphone industry. It has been such a problem that Apple made a formal apology. The next day, the magazine altered their stance after encountering instances of dropped calls.[94] The magazine rejected Apple's explanation after conducting tests in a controlled environment, and comparing the results against prior generations of iPhone. It sarcastically pointed out that using a piece of tape to cover the lower left antenna gap was one way to fix the problem, but recommended that consumers who "want an iPhone that works well without a masking-tape fix" purchase the iPhone 3GS instead.[81] The magazine also tested the iPhone 4 while it was wearing a Bumper, a frame-like cover sold by Apple that prevents direct contact with the antenna, reporting that it did resolve the problem.[95]CNN repeated Consumer Reports' statement that a small amount of duct tape had proven an effective fix to the iPhone 4's dropped call issue.[96]

On July 16, 2010, at a press conference, Steve Jobs announced that Apple would provide all iPhone 4 owners with a free case to help solve the antenna issue and a refund to those users who had already purchased a Bumper. The free case offer would be valid until September 30, 2010, when Apple would re-evaluate the situation.[97][98] To get a free case, owners were able to apply via an app installed on the phone found in the App Store from July 22, 2010 to September 30, 2010. Jobs also announced that Apple could not produce enough Bumpers for all owners of the phone, but would source a supply and offer a range of cases.[99] Additionally, Jobs cited figures from AppleCare which showed that only 0.55 percent of all iPhone 4 users have complained to the company about the issue, while the number of phones returned to Apple was 1.7 percent – 4.3 percentage points less than the number of iPhone 3GS models that were returned in the first month of the phone's launch.[99]

Consumer Reports noted that the solution was not permanent, though a good first step.[100] However, because Jobs did not specify a time line for fixing the problem, and the offering for a free bumper only being a temporary solution, PC World decided to remove the iPhone 4 from its "Top 10 Cell Phones" chart and reassign it to a pending rating.[101]

AnandTech researched iPhone 4 antenna and identified that its outer construction provides 5–9 dB (6.9–9 times) better sensitivity comparing to common internal antenna design of iPhone 3GS (the phone keeps working connection with signal as low as −120/121 dB comparing to usual −113/115 dB).[102]

Despite the negative media attention regarding the antenna issues, 72% of iPhone 4 users say that they are "very satisfied" with their iPhone 4 according to an August 2010 survey by ChangeWave Research.[103] The iPhone 4 model continued to be sold unchanged up until September 2013.

iPhones in space[edit]

In 2011, two iPhone 4 units equipped with a special application were taken to the International Space Station aboard the Space Shuttle on the STS-135 mission.[104] The devices were used in various experiments, utilizing sensors and a special app.[104]

Timeline of iPhone models[edit]

Sources: Apple press release library[105]

See also[edit]

Notes[edit]

  • ^ The initial release date of June 24, 2010 applies only to the United States, the United Kingdom, France, Germany, and Japan.[106]
  • ^SIM-free iPhone 4s are only available directly from Apple in United States, Canada, France, Germany[107] and the United Kingdom as of the device's initial release.[108]
  • ^ The Advanced Performance Optimization on iOS, part 2 session.
  • ^ 6 percent of iPhone 3GS models were returned within the first month of the phone being on sale.[99]

References[edit]

  1. ^Chen, Yenting (January 13, 2011). "CDMA iPhone to contribute strong sales to Foxconn and Pegatron in 2011". DigiTimes. Retrieved January 14, 2011. 
  2. ^Identifying iPhone models – support.apple.com Retrieved September 21, 2011.
  3. ^ ab"iPhone 4 Teardown". iFixit. p. 2. Retrieved June 23, 2010. 
  4. ^Lane, Slash (June 17, 2010). "Apple reveals iPhone 4 has 512MB RAM, doubling iPad". AppleInsider. Retrieved June 17, 2010. 
  5. ^"iPhone 4 Teardown". iFixit. June 23, 2010. p. 1. Retrieved July 18, 2010. 
  6. ^iPhone 4 RF Exposure Information (Model A1332)
  7. ^iPhone 4 RF Exposure Information (Model A1349)
  8. ^Topolsky, Joshua (7 June 2010). "Steve Jobs live from WWDC 2010". Engadget. Retrieved 18 June 2010. 
  9. ^ abDiaz, Jesus (June 7, 2010). "iPhone 4: The Definitive Guide". Gizmodo. Retrieved June 19, 2010. 
  10. ^Patel, Nilay (January 27, 2010). "Is this the Apple tablet?". Engadget. Engadget. Retrieved March 20, 2016. 
  11. ^Patel, Nilay (January 27, 2010). "iPhone-iTablet Size Comparison". Engadget. Engadget. Retrieved March 20, 2016. 
  12. ^Topolsky, Joshua (April 18, 2010). "iPhone 4G: proof". Engadget. Engadget. Retrieved March 20, 2016. 
  13. ^Golijan, Rosa (April 23, 2010). "The Tale of Apple's Next iPhone".
Apple's CEO Steve Jobs holding a white iPhone 4. The white iPhone 4 was released in April 2011.
The iPhone 4 is the first iPhone model to have two cameras. The LED flash for the rear-facing camera (top) and the forward-facing camera (bottom, left of speaker) are not present in older models.
An iPhone 4 A1332 with a micro-SIM card removed with a paper clip, showing its compartment sim card
The iPhone 4 is constructed of glass faces and a metal rim.
An iPhone 4 next to a Bumper.

Update: iOS 10.3.2 update stops iPhone 5 support

Bad news for iPhone 5 owners. Apple, with its latest 10.3.2 iOS update has stopped supporting all its iPhone 5 models. In a move which many suspect to be a desperate effort to sell some iPhone 7's, iPhone 5 owners are now left in the dark. It might be time to upgrade then, but why this sad turn of events?

The main reason behind this move? Well, both the iPhone 5 and iPhone 5C (both models no longer supported) run on a 32-bit architecture, while later models (iPhone 5s onwards) are treated to a 64-bit infastructure. This may have caused headaches for Apple's software engineers when it came to iOS updates, although no official word has been given. Of course, Apple's push to sell more iPhone 7's may well be the culprit.

Regardless, the iPhone 5 is now in its fifth year. It's definitely reached the end of its lifespan, and it's well worth an upgrade to ensure support for the coming years. That being said, you can find my original iPhone 5 review, below

Apple iPhone 5 review

You can sum up the iPhone 5 in three words, taller, slimmer and lighter. Apple has managed to shave 1.4mm of the thickness of its previous phone. When you compare them side-by-side, what Apple has done is immediately obvious. While the iPhone 4S' screen and back bulged out from the side, the iPhone 5 has a flush back, while the screen is barely raised at all.

There's no denying that the iPhone 5 is impressively thin

It's easy to tell the difference is size from photos, but weight's an altogether harder thing to describe. In pure stats, the iPhone 4S weighed 140g, while the iPhone 5 is 28g lighter at just 112g. Trust us, this is a big difference and it's immediately noticeable when you pick the iPhone 5 up: you get the feeling that it simply should weigh more, it's that light.

While the iPhone 4S and iPhone 5 are clearly related, there are some cosmetic changes to the new model, which give it a different look and help keep the weight down. Gone is the all-glass rear, replaced instead with an aluminium panel that covers most of back of the phone, bar two glass panels at the top and bottom. We've been told that during manufacturing the rear of the phone is photographed with the aluminium panel in place, so that the best-fitting glass panels can be found. Our review model was certainly well put together, with a flush fitting rear.

A new aluminium back panel gives the iPhone 5 a different look and feel

Apple iPhone 5 review: Screen

One of the biggest reasons for the change in size of the iPhone 5 is because it has a larger 4in screen with a 16:9 aspect ratio, rather than the 3:2 aspect ratio used on the iPhone 4S. What this means in practice is that both screens are the same width, but the iPhone 5's is slightly taller, with a resolution of 1,136x640 (the iPhone 4S had a resolution of 960x640), maintaining the same high 326ppi. That's still a Retina display, which Apple defines as a screen where you can't see the individual pixels.

A 16:9 screen means the iPhone 5 is taller than its predecessor

Extra resolution is useful, as you can now fit five rows of icons on the homescreen, up from four on the iPhone 4S. It also makes sense when you use a lot of the applications: you can view more calendar appointments and emails in a list, for example.

More resolution means that each app can display more information

Typing with the phone in portrait mode is also easier, as there's more space above the keyboard for text, making it easier to see what you're writing and correct any mistakes is necessary.

The higher resolution means you can see more when you type

It's not just a bigger screen, though, as the iPhone 5's display embeds the touch components with the actual pixels, removing a layer from the old screen. As well as being thinner, the new screen is brighter with higher colour saturation. Compared side-by-side with an iPhone 4S, we really noticed the difference with the iPhone 5 looking a lot more vibrant, with more pleasing colours. The screen is evenly lit and viewing angles are excellent, with the display easy to see from any angle. A 16:9 display also makes more sense if you're watching a lot of TV programmes or films on your phone, as the screen better suits the aspect ratios typically used, leading to a reduction or complete removal of black bars.

While Apple used to be a way ahead of the competition in resolution, we're seeing more Android phones with full 720p displays. The trade-off is that these Android devices typically have a larger screen with a slightly lower PPI. As we see it, a larger screen will give you more resolution, but you'll lose some of the pocketability of the iPhone 5, so it's a matter of choosing what is most important to you.

Apple iPhone 5 review: Processor

Along with its new phone comes a new processor, the Apple A6. Apple promises that it's twice as fast for the CPU and provides double the graphics performance. Impressively, it's also 22 per cent smaller. It's hard to fully test a phone's processor, but this dual-core model certainly proved itself in the tests we performed.

The Sunspider Java test completed in 944.1ms on the iPhone 5 and took more than twice as long on the iPhone 4S, completing in 1,917.3ms. Web browsing in general is very quick, with the BBC News home page rendering in less than four seconds.

We noticed that the iPhone 5 was every-so-slightly snappier than the iPhone 4S, opening applications, such as Photos, which was filled with images, that little bit faster. As you'd expect from Apple, iOS is beautifully smooth throughout, effortlessly rendering all of the little animations. Google has come on a long way with Project Butter in Android 4.1, which made its debut on the Google Nexus 7, but Apple maintains its crown for smoothness.

Apple iPhone 5 review: Operating system

The iPhone 5 ships with iOS 6, which is available for older iPhones and iPads as a free upgrade. This in itself is a massive benefit of going with an Apple handset, as you'll get the next OS upgrade the day it's released: Android still lags painfully behind, with some manufacturers taking months to release a new update.

For the most part iOS 6 is a tweak to what's gone before, making the iPhone work better in the cloud and with other Apple devices. Improvements are mostly small but handy, such as Safari now having iCloud Tabs, where you can see browser tabs open on your other Apple devices. We like the way that you can share Photo Streams with people on iOS 6 devices or, for everyone else, via a public website.

We have to comment on new Maps app, which is built by Apple rather than Google. In terms of interface, it's the same as before, but the underlying data and search just isn't as good at the moment. There are plenty of omissions (there's no Tottenham Court Road station), it often struggles to find what you're searching for and does strange things, such as jumping to the US rather than looking up a UK street address.

As it currently stands using postcodes is currently the only sure-fire way of finding the address that you want. Apple is working on its problem at the moment, but it's a little sad that Maps has currently taken a step backwards.

Turn-by-turn directions are nice to have, if you can find where you want to go

In its favour, Maps introduces turn-by-turn directions. You're given a clear choice of three routes, with traffic problems highlighted, making it quick and easy to choose your own journey. Prompts are spoken clearly by the Siri voice, and we like the way that the next turn indicator counts down the distance, so you know exactly when to make the manoeuvre.

3D Cities is a neat way to explore, although it's limited to a few cities at the moment

We also like the 3D Cities view, which gives you a 3D model of the place you're looking at to virtually fly over. The centre of London is covered, but that's about it for now in the UK, although Apple is expanding its content.

Apple iPhone 5 review: Siri

Siri has had a few improvements to make it faster to respond, while you can also post Facebook or Twitter updates using it. Again, Siri swings between scarily accurate and annoyingly wrong, but it's often a quick way to use a feature: we think it's brilliant for setting reminders.

Passbook is a brand-new app, which is a digital wallet for tickets, store cards and coupon codes. Currently, it's a bit limited in the UK, but we expect more partners to come online in the coming months. When it has full UK support, it could be really useful: Passbook is location-aware, so it can, for example, pop up your airline boarding pass as you reach the airport, saving you having to hunt through your bag for the old paper version.

Apple iPhone 5 review: Lightning dock connector

Gone is the old Universal Dock connector, which had been in place since the first iPod. Instead, there's the new Lightning connector. Anyone with loads of existing peripherals will probably be gnashing their teeth. Apple will sell a Dock-to-Lightning adaptor for the princely sum of £25, but we haven't been able to try it out as there's currently no stock until . If you want to charge at home and at work, you'll need to buy extra Lightning cables, with Apple selling each one for £15.

The new Lightning connector is more robust and easier to use, although a little annoying if you have old peripherals and docks

It's also a little annoying that the headphone port has been moved to the bottom of the phone. If you buy a Lightning charging dock at some point in the future (there aren't any at the moment) you can't charge and listen to your headphones.

Apple iPhone 5 review: Camera

A thinner case has meant that Apple has had to redesign the lens and sensor for the iPhone 5, although it still has the same 8-megapixel resolution as the iPhone 4S. There's little difference in practice between the two models, as you can see from our detail shots below.

As with the iPhone 4S, the iPhone 5 has one of the best smartphone cameras. Shots are bright, vibrant and very detailed. For most purposes, you can happily use your phone rather than a compact camera.

New to the iPhone 5 is a panorama mode. All you have to do is hold the phone steady and pan up to 270-degrees to create one massive image. It's very easy to use – just keep the arrow on the horizontal line – but you'll need to keep your hand steady to avoid any artefacts or odd blobs in the final image. When you use it properly, the final results can be stunning.

Video is shot at 1080p at 30fps, and the quality is generally excellent. Footage is detailed with punchy colours and it's easy to see why there's no need for Flip video cameras or the like any more. We've got footage of the iPhone 4S and iPhone 5 below, so you can compare the two.

The iPhone 5 shoots similar high-quality 1080p video to the iPhone 4S

Apple iPhone 5 review: Battery

Battery life is quoted by Apple as the same as on the 4S, which is impressive considering the iPhone 5 has the larger screen. In our video playback test, the iPhone 5 lasted 12h 4m, which is pretty much the same as the iPhone 4S in the same test.

Apple iPhone 5 review: Conclusion

If anything's missing from the iPhone 5, it's NFC. This technology has been in several Android handsets, but Apple so far hasn't bothered with it. We don't see this as a massive problem at the moment, as there isn't the infrastructure to use it, but it's still a slightly surprising omission.

Thin and powerful the iPhone 5 is a great handset

Overall, the iPhone 5 is a great bit of work. It's brilliantly made, and very fast with the an incredibly responsive mobile operating system. While previous iterations have been way ahead of the competition, the iPhone 5 just doesn't maintain the gap. In particular, Maps is a big step backwards, while iOS 6 feels more like a tweak than a genuine step forwards.

The biggest threat to the iPhone 5 is that the competition has gotten a lot better and it's cheaper: the Samsung Galaxy S3 and the HTC One X have similar features and both are free on a contract.

Don't get us wrong, the iPhone 5 is still a brilliant handset and iOS is still incredibly easy and smooth to use, it's just that the poor Maps app and comparatively high price mean that this model just misses out on an award.

Hardware

Main display size4.0in
Native resolution1,136x640
CCD effective megapixels8-megapixel
FlashLED
GPSyes
Internal memory16384MB
Memory card supportnone
Memory card includedN/A
Operating frequenciesHSDPA 800/900/1900/2100, LTE (Bands 1/3/5)
Wireless data4G
Size123.8x58.6x7.6mm
Weight112g

Features

Operating systemiOS 6
Microsoft Office compatibilityN/A
FM Radiono
Accessoriesheadphones, data cable, charger

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