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iPhone 4

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iPhone 4
DeveloperApple Inc.
ManufacturerFoxconn (OEM)[1]
TypeSlate smartphone
Release dateJune 24, 2010 (2010-06-24)[note 1]
Units sold600,000 pre-ordered[3]
Operating systemiOS 4
Released June 21, 2010 (2010-06-21)
CPUApple A4; processing speed unknown
Memory512 MB eDRAM[4]
Storage16 GB or 32 GB flash memory
DisplayLED backlit IPS LCD 3.5" (diagonal)
960-by-640-pixel resolution at 326 ppi, 800:1 contrast ratio
InputMulti-touch touchscreen display
3-axis gyroscope
3-axis accelerometer
Magnetometer
Proximity sensor
Ambient light sensor
CameraBack
5 MP with geotagging
HD video (720p) at 30 fps
1.75 μm size pixels
5× digital zoom
LED flash
Front
VGA with geotagging
SD video (480p) at 30 fps
25.17 µs size pixels
ConnectivityQuad band
GSM/EDGE/UMTS/HSDPA/HSUPA
(850, 900, 1800, 1900, 2100 MHz)
Wi-Fi (802.11b/g/n) (2.4 GHz)
Bluetooth 2.1 + EDR
PowerBuilt-in rechargeable li-ion battery
Online servicesApp Store, iBook Store, iTunes Store, MobileMe
Dimensions115.2 mm (4.54 in) (h)
58.66 mm (2.309 in) (w)
9.3 mm (0.37 in) (d)
Mass137 g (4.8 oz)
PredecessoriPhone 3GS
RelatediPad, iPod Touch (Comparison)
WebsiteApple - iPhone

The iPhone 4 (Template:Pron-en, EYE-fohn-fohr) is the fourth generation of iPhone, and successor to the iPhone 3GS. Introduced on June 7, 2010 at the WWDC 2010 at the Moscone Center, San Francisco,[5] it is the first device to support FaceTime. It has an Apple A4 processor, 512 MB of eDRAM, a 3.5 inches (89 mm) LED backlit liquid crystal display with 960-by-640 pixel resolution, and the iOS 4 operating system.

The device will be available from June 24, 2010 in the U.S. and is available exclusively from AT&T. It will be available SIM free in certain countries.[note 2]

The iPhone 4 has a refreshed variation of Jonathan Ive's iPhone industrial design. The primary structure of the phone is the stainless steel frame, which additionally acts as both the iPhone 4's antennae. The internal components of the device are situated between two panels of chemically strengthened aluminosilicate glass.[7]

History

See also: History of the iPhone

Release

The iPhone 4 was made available for pre-order on June 15, 2010. Customers attempting to pre-order the iPhone 4 reported problems with the pre-order process on the U.S. and U.K. online Apple Stores which crashed due to the surge in traffic.[8] The same issue was reported with AT&T and SoftBank, who suspended advance sales of the iPhone 4 as demand threatened to exceed supply.[9] Retail stores were also unable to complete pre-order transactions due to the servers crashing.[10]

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 has received in a single day for any device.[3] Engadget reported that at 20:30 UTC, all iPhone 4 pre-order suppliers had sold out.[11]

Availability

The iPhone 4 will be available in five countries from its June 24, 2010 launch; the United States, the United Kingdom, France, Germany, and Japan.[5] On June 21, 2010, Apple sent an email to their preorder customers, showing a delivery date one day early, on June 23. [12]


Design

File:Steve Jobs iPhone 4 presentation.jpg
Steve Jobs introducing the iPhone 4

The iPhone 4 features a redesigned structure, designed by Jonathan Ive. The redesign is to compliment the utilitarianism and uniformity of existing Apple products, such as the iPad and the iMac. The only remnant of the previous generations of iPhone is the general layout of the device; the distinctive metal structure of the iPhone 4 is more reminiscent of the 3G and 3GS. Also, the curve of the back panel has been decreased from a subtle curve to a flat surface. The dimensions of the iPhone 4 are an improvement over its predecessor. It is 4.5 inches (110 mm) high, 2.31 inches (59 mm) wide, and 0.37 inches (9.4 mm) deep, compared to the 3GS, which is 4.55 inches (116 mm) high, 2.44 inches (62 mm) wide, and 0.48 inches (12 mm) deep; it is 24% thinner than the iPhone 3GS. Steve Jobs claims that it is “the thinnest smartphone on the planet.”[13]

The iPhone 4 is structured around a stainless steel frame which acts as the primary structure for the device, and additionally acts as both the iPhone 4's antennae. The stainless steel enclosure features three slits that divide the band into three sections; the left section of band acts as the Bluetooth, Wi-Fi, and GPS antenna, and the right and lower bands sections act as the antenna for GSM and UMTS connectivity. 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 previous generations.[7]

Hardware

See also: iPhone Hardware

Camera

The iPhone 4 features an additional front-facing VGA camera, and an improved 5 megapixel rear-facing camera integrated with an LED flash. The rear-facing camera is capable of recording HD video in 720p at 30 frames per second. Both cameras support the tap to focus feature.[14] Previous generations did not support digital zooming, and no generation supports optical zooming.

Gyroscope and accelerometer

The iPhone 4 introduces a gyroscopic sensor that enables 3-axis angular acceleration around the X, Y and Z axes, enabling precise calculation of yaw, pitch, and roll. The gyroscope compliments the accelerometer, a sensor that has been present since the original iPhone, and 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 how far, fast, and in which direction it has moved in space.[15]

Retina display

The display on the iPhone 4 features a LED backlit LCD capacitive touchscreen with a pixel density of 326 pixels per inch (ppi) on a 3.5 inches (8.9 cm) (960-by-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 12 inches (30 cm) from one's eye is the maximum amount of detail that the human retina can process.[16] With the iPhone expected to be used at a distance of about 10 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.

According to Raymond Soneira, president of DisplayMate Technologies, the resolution of the retina is higher than claimed by Apple, working out to 477 pixels per inch at 12 inches (305 mm) from the eyes.[17]. Phil Plait of Bad Astronomy responded that agreed in a way with both Apple and Soneira, saying "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."[18]

Processor and memory

Main article: Apple A4

The iPhone 4 is powered by the Apple A4 chip, which was designed by Intrinsity and manufactured by Samsung; who have manufactured all the processors used in the previous iPhone models.[19] The A4 chip is composed of a Cortex-A8 central processing unit and a PowerVR SGX 535 graphics processor.[20] The chip is capable of running at 1 GHz, as it does in the iPad, but the speed on which it would run on the iPhone 4 has not been specified. All previous generations have used underclocked chips to extend battery life.

Apple has stated at a session[note 3] at the WWDC 2010 that the iPhone 4 will have 512 MB of RAM. The additional RAM is to support increased performance and multi-tasking.[21]

Storage and Micro-SIM

The iPhone 4 uses a Micro-SIM card, which is positioned in an ejectable tray, located on the right side of the device. All previous models have used standard sized SIM cards. The Micro-SIM tray can be ejected using any small ended object, or the supplied "SIM eject tool", which is a simple piece of die-cut sheet metal included with every iPhone 4.[citation needed] As on previous models, all data is stored in flash memory, 16GB or 32GB, and not on the SIM. The iPhone 4 continues to use the 30 pin dock connector as its only external port.

Software

FaceTime

Main article: FaceTime

The iPhone 4 is the first device to support FaceTime, an embedded video conferencing application that is able to use either the front or back camera over Wi-Fi to communicate with another iPhone 4.

Without Adobe Flash support

Like its predecessor, the iPhone 4, which comes with iOS4, does not provide the support of Adobe Flash. This can adversely affect viewing websites with Adobe Flash contents. iOS4 does support HTML5, however this standard has not been finalized and it has not been widely adopted at present.

Timeline of iPhone models

Timeline of iPhone models
iPhone 16 ProiPhone 16 ProiPhone 15 ProiPhone 15 ProiPhone 14 ProiPhone 14 ProiPhone 13 ProiPhone 13 ProiPhone 12 ProiPhone 12 ProiPhone 11 ProiPhone 11 ProiPhone XSiPhone XSiPhone XiPhone 16iPhone 16iPhone 15iPhone 15iPhone 14iPhone 14iPhone 13iPhone 13iPhone 12 MiniiPhone 12iPhone 11iPhone XRiPhone 8iPhone 8iPhone 7iPhone 7iPhone 6SiPhone 6SiPhone 6iPhone 6iPhone 5iPhone 5SiPhone 4SiPhone 4iPhone 3GSiPhone 3GiPhone (1st generation)iPhone SE (3rd generation)iPhone SE (2nd generation)iPhone SE (1st generation)iPhone 5C
See also: Timeline of Apple Inc. products

Source: Apple Newsroom Archive[22]


See also

Notes

  1. ^ Only in; the United States, the United Kingdom, France, Germany, and Japan.[2]
  2. ^ Only in; Canada, France, and the United Kingdom.[6]
  3. ^ Advanced Performance Optimization on iOS, part 2.

References

  1. ^ Dalrymple, Jim (July 28, 2009 (2009-07-28)). "iPhone manufacturer to pay family of dead worker". CNET.com. Retrieved April 6, 2010 (2010-04-06). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  2. ^ "We will ship in 5 countries" (Press release). Apple Inc. June 7, 2010 (2010-06-07). Retrieved June 21, 2010 (2010-06-21). {{cite press release}}: Check date values in: |accessdate= and |date= (help)
  3. ^ a b "Statement by Apple on iPhone 4 Pre-Orders" (Press release). Apple Inc. June 16, 2010 (2010-06-16). Retrieved June 18, 2010 (2010-06-18). {{cite press release}}: Check date values in: |accessdate= and |date= (help)
  4. ^ Lane, Slash (June 17, 2010 (2010-06-17)). "Apple reveals iPhone 4 has 512MB RAM, doubling iPad". AppleInsider. Retrieved June 17, 2010 (2010-06-17). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  5. ^ a b Topolsky, Joshua (June 7, 2010 (2010-06-07)). "Steve Jobs live from WWDC 2010". Engadget. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  6. ^ Evans, Jonny (June 15, 2010 (2010-06-15)). "Apple confirms SIM-free iPhones are truly unlocked". 9 to 5 Mac. Retrieved June 20, 2010 (2010-06-20). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  7. ^ a b Diaz, Jesus (June 7, 2010 (2010-06-07)). "iPhone 4: The Definitive Guide". Gizmodo. Retrieved June 19, 2010 (2010-06-19). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  8. ^ Beaumont, Claudine (June 16, 2010 (2010-06-16)). "Apple iPhone 4: Pre-orders break records despite technical issues". The Daily Telegraph. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  9. ^ Patel, Nilay (June 16, 2010 (2010-06-16)). "600,000 iPhone 4s pre-ordered, Apple apologizes for issues". Engadget. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  10. ^ Murph, Darren (June 15, 2010 (2010-06-15)). "iPhone 4 pre-orderers overwhelm servers, world on the brink of ending". Engadget. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  11. ^ Ziegler, Chris (June 15, 2010 (2010-06-15)). "AT&T sold out of iPhone 4 pre-orders for launch day". Engadget. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  12. ^ Cite error: The named reference iPhone 4 arriving one day early on June 23rd, says Apple email - Engadget was invoked but never defined (see the help page).
  13. ^ Helf, Miguel; Wortham, Jenna (June 7, 2010 (2010-06-07)). "On Newest iPhone, Another Camera". Gizmodo. Retrieved June 20, 2010 (2010-06-20). {{cite web}}: Check date values in: |accessdate= and |date= (help)CS1 maint: multiple names: authors list (link)
  14. ^ Slivka, Eric (June 8, 2010 (2010-06-08)). "A Look at iPhone 4's Camera Quality". MacRumors. Retrieved June 20, 2010 (2010-06-20). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  15. ^ Dilger, Daniel Eran (June 16, 2010 (2010-06-16)). "Inside iPhone 4: Gyro spins Apple ahead in gaming". AppleInsider. p. 2. Retrieved June 20, 2010 (2010-06-20). {{cite web}}: Check date values in: |accessdate= and |date= (help); More than one of |pages= and |page= specified (help)
  16. ^ Brandrick, Chris (June 8, 2010 (2010-06-08)). "iPhone 4's Retina Display Explained". PC World. Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  17. ^ "Analyst Challenges Apple's iPhone 4 'Retina Display' Claims". Retrieved June 10, 2010.
  18. ^ "Resolving the iPhone resolution". Retrieved June 21, 2010.
  19. ^ "Apple's new iPhone 4". TechAutos. June 15, 2010 (2010-06-15). Retrieved June 18, 2010 (2010-06-18). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  20. ^ Vance, Ashlee (February 21, 2010 (2010-02-21)). "For Chip Makers, the Next Battle Is in Smartphones". The New York Times. Retrieved June 19, 2010 (2010-06-19). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  21. ^ Kim, Arnold (June 17, 2010 (2010-06-17)). "iPhone 4 Confirmed to Have 512MB of RAM (Twice the iPad and 3GS)". MacRumors. Retrieved June 19, 2010 (2010-06-19). {{cite web}}: Check date values in: |accessdate= and |date= (help)
  22. ^ Apple Inc. (2007–2024). iPhone News - Newsroom Archive. Retrieved September 9, 2024.

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