Engineering:iPhone 8

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Short description: Group of eleventh-generation smartphone models produced by Apple Inc.

iPhone 8
iPhone 8 Plus
IPhone 8 Wordmark.svg
IPhone 8 vector.svg
Gold iPhone 8
BrandApple Inc.
Manufacturer
SloganA new generation of iPhone
Generation11th
Model8:
A1863 (with Qualcomm modem)
A1905 (with Intel modem)
A1906 (sold in Japan)[2]
8 Plus:
A1864 (with Qualcomm modem)
A1897 (with Intel modem)
A1898 (sold in Japan)[2]
Compatible networksGSM, CDMA2000, EV-DO, HSPA+, LTE, LTE Advanced
First releasedSeptember 22, 2017; 7 years ago (2017-09-22)
Availability by region
DiscontinuedApril 15, 2020; 4 years ago (2020-04-15)
PredecessoriPhone 7 / iPhone 7 Plus
SuccessoriPhone XR
RelatediPhone X
iPhone SE
Type8: Smartphone
8 Plus: Phablet
Form factorSlate
Dimensions8:
H: 138.4 mm (5.45 in)
W: 67.3 mm (2.65 in)
D: 7.3 mm (0.29 in)
8 Plus:
H: 158.4 mm (6.24 in)
W: 78.1 mm (3.07 in)
D: 7.5 mm (0.30 in)
Mass8: 148 g (5.2 oz)
8 Plus: 202 g (7.1 oz)
Operating systemOriginal: iOS 11.0
Current: iOS 14.5
System on chipApple A11 Bionic
CPU2.39 GHz hexa-core 64-bit
Memory8: 2 GB LPDDR4X RAM
8 Plus: 3 GB LPDDR4X RAM
Storage64, 128, or 256 GB
(256 GB model discontinued since September 10, 2019)
Removable storageNone
Battery8: 3.82 V 6.96 W·h (1821 mA·h) Li-ion[3]
8 Plus: 3.82 V 10.28 W·h (2691 mA·h) Li-ion[3]
Display8: 4.7 in (120 mm) Retina HD: LED-backlit IPS LCD, 1334×750 px (326 ppi)
8 Plus: 5.5 in (140 mm) Retina HD: LED-backlit IPS LCD, 1920×1080 px (401 ppi)
All models: 625 cd/m² max. brightness (typical), with dual-ion exchange-strengthened glass and 3D Touch
Rear camera8: 12 MP with six-element lens, quad-LED "True Tone" flash with Slow Sync, autofocus, IR filter, Burst mode, f/1.8 aperture, 4K video recording at 24, 30, or 60 fps or 1080p at 30 or 60 fps, slow-motion video (1080p at 120 or 240 fps), timelapse with stabilization, panorama, face detection, digital image stabilization, optical image stabilization

8 Plus: In addition to above: A telephoto lens with 2× optical zoom / 10× digital zoom, f/2.8 aperture
Portrait Mode

Portrait Lighting (beta)
Front camera7 MP, f/2.2 aperture, burst mode, exposure control, face detection, auto-HDR, auto image stabilization, Retina flash, 1080p HD video recording
SoundStereo speakers
Connectivity
SAR
Hearing aid compatibilityM3, T4

Template:IPhone models

The iPhone 8 and iPhone 8 Plus are smartphones designed, developed, and marketed by Apple Inc. They make up the 11th generation of the iPhone, along with the iPhone X. They were released on September 22, 2017, succeeding iPhone 7 and iPhone 7 Plus.[8] The iPhone 8 and iPhone 8 Plus were discontinued by Apple on April 15, 2020 with the release of the second-generation iPhone SE.

Except for addition of a glass back, the designs of iPhone 8 and 8 Plus are largely similar to that of their predecessors. Notable changes include the removal of the rose gold color variant,[9] addition of inductive charging, a faster processor, and improved cameras and displays. The iPhone 8 and 8 Plus share most of their internal hardware with the iPhone X.

Reception of the phones was generally positive, with reviewers praising the addition of inductive charging, fast charge capability, and the new Apple A11 processor, while criticizing the aging design that was introduced with the iPhone 6 and iPhone 6 Plus in 2014.

History

On August 31, 2017, Apple invited the press to a media event at the Steve Jobs Theater in the Apple Park campus on September 12, 2017.[10] The iPhone 8 and iPhone 8 Plus were announced at that event, and released on September 22, 2017.[11]

On April 9, 2018, Apple introduced an iPhone 8 with a red color finish and a black front, in support of their partnership with Product Red and their AIDS fundraising campaign.[12]

In March 2020, Apple started selling refurbished iPhone 8 Plus models starting at $469.[13] In May 2020, Apple started selling iPhone 8 models starting at $339.[14]

On April 15, 2020, Apple announced the second-generation iPhone SE and discontinued the iPhone 8 and 8 Plus, which share most of the same specifications with the exception of the iPhone SE's A13 Bionic processor.[15]

Specifications

Hardware

Display

The iPhone 8 and 8 Plus retain the Retina HD Display found in the iPhone 7,[16] but they now feature True Tone technology, allowing for automatic screen adjustments based on surrounding ambient lighting.[11] They can play HDR10 and Dolby Vision content despite not having an HDR-ready display, done by down-converting the HDR content to fit the display while still having some enhancements to dynamic range, contrast, and wide color gamut compared to standard content.[17]

Camera

The iPhone 8 features a 12 MP camera with autofocus, f/1.8 aperture and optical image stabilization capable of capturing 4K video at 24, 30, or 60 frames per second, or 1080p video at 30, 60, 120 or 240 frames per second.[18]

The iPhone 8 Plus upgrades the main camera for a wide-angle lens with up to 10× digital zoom or 2× optical zoom,[19] and retains a second, telephoto lens similar to the one found on the iPhone 7 Plus, but with improved depth-of-field and lighting effects in Portrait mode.[20]

Both models have a 7 MP front camera with an f/2.2 aperture capable of capturing 1080p video at 30 frames per second and 720p video at 240 frames per second, along with face detection and high-dynamic range.[18][19]

The iPhone 8 and 8 Plus record videos with single channel audio (mono).[21]

Still photos with 6.5 megapixels (3412×1920) can be captured during video recording.[22]

Chipset

The iPhone 8 and 8 Plus contain the Apple A11 Bionic system-on-chip, a hexa-core processor that the company says features two cores that are 25% faster than the iPhone 7's A10 processor and four cores that are 70% faster than the prior model. The phones also feature an Apple-designed graphics processing unit 30% faster than prior units, with the same level of performance as the A10 at half the power.[11]

Other

Color Name Front
Space Gray Black
Silver White
Gold
Product Red Black

The phones have glass backs instead of the complete aluminum housing found on prior models, enabling the use of Qi inductive charging.[11] The phones are rated IP67 for water resistance and dust resistance. [23] Both models come with 64 and 256 gigabyte storage options, and are offered in silver, gold, or Space Gray color options.[11] A Product Red special edition version in red with a black front was released on April 9, 2018.[12] The iPhone 7 and 7 Plus special editions had a white front.

In addition to Qi wireless charging, the iPhone 8 also supports wired charging using Apple's proprietary Lightning connector. It can fast-charge from a charger providing USB Power Delivery combined with a special USB-C to Lightning adapter cable supporting fast charging.[24]

The iPhone 8 has a 6 out of 10 repairability score from iFixit, mainly due to the use of excessive glue for the back glass.[25]

Software

The iPhone 8 and 8 Plus were supplied with iOS 11 on launch,[18][19] and supports iOS 12, iOS 13, and iOS 14.

Reception

Samuel Axon of Ars Technica called the A11 processor "a marvelous feat of engineering", writing that it offers "industry-leading performance". Axon also praised the cameras, writing that "The colors are great, and low light performance is very good for a smartphone".[26] Chris Velazco of Engadget praised the speed of the A11 processor, the build quality and the "excellent" camera, while criticizing design familiarities with previous iPhone generations and limited water-protection levels compared to competitors.[27]

John McCann of TechRadar enjoyed the feel of the glass back despite criticizing the phone's overall design. McCann also praised the camera and called inductive charging a "useful" addition to the iPhone lineup.[28]

David Pierce of Wired similarly stated that the iPhone 8 models were overshadowed by the iPhone X, despite calling them "virtually perfect phones". Pierce praised performance, cameras, and displays, while repeatedly criticizing the "outdated" design.[29]

Nilay Patel of The Verge called the iPhone 8 the "default option", noting that the 8 models stand as almost universally overlooked by Apple's other new iPhone launched, the iPhone X. He nevertheless praised the device's form factor for being easy and non-slippery to hold, the display's addition of True Tone technology and upgraded speakers, though he cited issues with inductive charging speed through wireless pads as well as the price of the iPhone 8 Plus 256 GB, which was close to that of the iPhone X. Patel also criticized the iPhone 8's aging design, dating back to the iPhone 6 released in 2014; the most notable critique was of the thick bezels when compared to other 2017 smartphones, designed with nearly bezel-less faces to incorporate larger screens in a similar form factor.[30]

The iPhone 8 and 8 Plus were also criticized for their durability, as drop tests performed showed that the rear glass is not "the most durable glass ever in a smartphone", as claimed by Apple.[31][32]

Camera testing company DxOMark gave the camera on the iPhone 8 a rating of 92 and 8 Plus a rating of 94, giving them the title of best smartphone cameras tested by the company.[33][34] The Samsung Galaxy Note 8 later matched the iPhone 8 Plus with an identical overall score of 94.[35][36] They were later overtaken by the Google Pixel 2, which scored a 98 rating.[37]

Although being the first mobile phone to record 2160p at 60 frames per second, the iPhone 8, 8 Plus and X have been criticized in a review by GSMArena for its mono (single-channel) audio recording for videos, while stereo audio recording for videos has been available on competing mobile phone models for several years, such as the Samsung Galaxy S3 and Sony Xperia S from 2012.[21][38][39]

Issues

On August 31, 2018, Apple announced that a "very small percentage" of iPhone 8 devices released between September 2017 and March 2018 contained a manufacturing defect in the logic board. This fault affected iPhone 8 models sold in Australia, China, Hong Kong, India, Japan, Macau, New Zealand, and the United States. Defective devices may experience unexpected reboots, a frozen or unresponsive screen, or may fail to turn on. Users with an affected device, as determined by their serial number, can have their device replaced for free by Apple. This issue does not affect the iPhone 8 Plus.[40][41]

See also

References

  1. ↑ 1.0 1.1 1.2 Rossignol, Joe (November 11, 2017). "iPhone 8 Production Said to Drop Significantly Given Popularity of iPhone 8 Plus and iPhone X". https://www.macrumors.com/2017/11/11/kuo-iphone-8-production-cuts/. 
  2. ↑ 2.0 2.1 "Identify your iPhone model" (in en-US). Apple Support. https://support.apple.com/en-us/HT201296. 
  3. ↑ 3.0 3.1 "iPhone 8 and 8 Plus Have Smaller Batteries Than iPhone 7 Models, But Similar Battery Life" (in en). https://www.macrumors.com/2017/09/14/iphone-8-smaller-batteries-than-iphone-7/. 
  4. ↑ "Legal - RF Exposure - Apple". https://www.apple.com/legal/rfexposure/iphone10,1/en/. 
  5. ↑ "Legal - RF Exposure - Apple". https://www.apple.com/legal/rfexposure/iphone10,4/en/. 
  6. ↑ "Legal - RF Exposure - Apple". https://www.apple.com/legal/rfexposure/iphone10,2/en/. 
  7. ↑ "Legal - RF Exposure - Apple". https://www.apple.com/legal/rfexposure/iphone10,5/en/. 
  8. ↑ "iPhone 8: Everything We Know" (in en). https://www.macrumors.com/roundup/iphone-8/. 
  9. ↑ Quartz magazine article: (September 12, 2017)
  10. ↑ Kahn, Jordan (August 31, 2017). "Apple officially announces iPhone 8 event for Sept. 12 at Steve Jobs Theater". https://9to5mac.com/2017/08/31/apple-iphone-8-event-date-official-invite/. 
  11. ↑ 11.0 11.1 11.2 11.3 11.4 Gartenberg, Chaim (September 12, 2017). "iPhone 8 and 8 Plus announced with wireless charging, True Tone display, A11 Bionic processor". Vox Media. https://www.theverge.com/circuitbreaker/2017/9/12/16277764/apple-iphone-8-announced-features-price-release-date. 
  12. ↑ 12.0 12.1 "Apple introduces iPhone 8 and iPhone 8 Plus (PRODUCT)RED Special Edition" (Press release). Apple Inc. 2018-04-09.
  13. ↑ "Refurbished iPhone 8 Plus 64GB - Space Gray (Unlocked)" (in en-US). https://www.apple.com/shop/product/FQ8D2LL/A/Refurbished-iPhone-8-Plus-64GB-Space-Gray. 
  14. ↑ "Refurbished iPhone 8 64GB - Silver (Unlocked)" (in en-US). https://www.apple.com/shop/product/FQ6L2LL/A/Refurbished-iPhone-8-64GB-Silver. 
  15. ↑ Ireland, Three. "Compare iPhone 8 And iPhone SE Features | Three" (in en). https://www.three.ie/compare-phones/iphone-8-vs-iphone-se/. 
  16. ↑ Rossignol, Joe (September 13, 2017). "iPhone 8 Plus vs. iPhone 7 Plus: Every New Feature Compared". https://www.macrumors.com/guide/iphone-8-plus-vs-iphone-7-plus-features-tech-specs/. 
  17. ↑ Wong, Raymond (September 22, 2017). "HDR on the iPhone 8 and 8 Plus: The real story". http://mashable.com/2017/09/22/netflix-hdr-not-real-iphone-8-plus/. 
  18. ↑ 18.0 18.1 18.2 "Apple iPhone 8". https://www.gsmarena.com/apple_iphone_8-8573.php. 
  19. ↑ 19.0 19.1 19.2 "Apple iPhone 8 Plus". https://www.gsmarena.com/apple_iphone_8_plus-8131.php. 
  20. ↑ Caldwell, Serenity (October 2, 2017). "How to use the iPhone 8 Plus camera: The ultimate guide". https://www.imore.com/iphone-8-plus-and-x-camera-guide. 
  21. ↑ 21.0 21.1 Review of the iPhone 8 video camera by GSMArena
  22. ↑ "Snap Photos and Record Video on an iPhone at the Same Time" (in en). 2020-01-22. https://www.lifewire.com/take-photo-while-recording-video-iphone-1999621. 
  23. ↑ Clover, Juli (September 12, 2017). "iPhone X and iPhone 8 Feature IP67 Water Resistance Rating, Same as iPhone 7". https://www.macrumors.com/2017/09/12/iphone-x-and-iphone-8-ip67-water-resistant/. 
  24. ↑ https://www.zdnet.com/article/everything-you-need-to-know-about-charging-your-iphone-8/
  25. ↑ Dunn, Jeff (September 22, 2017). "iFixit's iPhone 8 teardown finds a smaller battery and lots of glue". https://arstechnica.com/gadgets/2017/09/ifixits-iphone-8-teardown-finds-a-smaller-battery-and-lots-of-glue/. 
  26. ↑ Axon, Samuel (September 28, 2017). "iPhone 8 and 8 Plus review: The curious case of the time-traveling phone". Condé Nast. https://arstechnica.com/gadgets/2017/09/iphone-8-and-8-plus-review-the-curious-case-of-the-time-traveling-phone/. 
  27. ↑ Velazco, Chris (September 19, 2017). "iPhone 8 and 8 Plus review: Change in small doses". Oath Inc.. https://www.engadget.com/2017/09/19/iphone-8-and-8-plus-review/. 
  28. ↑ McCann, John (October 27, 2017). "iPhone 8 review". Future plc. http://www.techradar.com/reviews/iphone-8-review. 
  29. ↑ Pierce, David (September 19, 2017). "Review: Apple iPhone 8 and 8 Plus". Wired. https://www.wired.com/2017/09/review-apple-iphone-8-and-8-plus/. Retrieved November 9, 2017. 
  30. ↑ Patel, Nilay (September 19, 2017). "iPhone 8 and 8 Plus review: the default option". Vox Media. https://www.theverge.com/2017/9/19/16323570/apple-new-iphone-8-review-plus-2017. 
  31. ↑ Clover, Juli (September 25, 2017). "Glass-Bodied iPhone 8 Shatters Repeatedly in Drop Tests". https://www.macrumors.com/2017/09/25/iphone-8-shatters-in-drop-tests/. 
  32. ↑ Epstein, Zach (September 25, 2017). "Drop test confirms Apple totally lied about the glass back on the iPhone 8". Penske Media Corporation. http://bgr.com/2017/09/25/iphone-8-plus-case-needed-drop-test-oof/. 
  33. ↑ Rossignol, Joe (September 22, 2017). "DxO Labs Says iPhone 8 Plus Has Best Smartphone Camera They've Ever Tested". https://www.macrumors.com/2017/09/22/dxomark-iphone-8-plus-best-smartphone-camera/. 
  34. ↑ Mayo, Benjamin (September 22, 2017). "iPhone 8 and iPhone 8 Plus top DxOMark smartphone camera rankings". https://9to5mac.com/2017/09/22/iphone-8-8-plus-best-camera-dxomark-rankings/. 
  35. ↑ Fingas, Jon (October 3, 2017). "Galaxy Note 8 and iPhone 8 Plus tie for top spot in camera test". Oath Inc.. https://www.engadget.com/2017/10/03/galaxy-note-8-iphone-8-plus-tied-in-dxomark-camera-test/. 
  36. ↑ Potuck, Michael (October 3, 2017). "Samsung Galaxy Note 8 ties iPhone 8 Plus in DxOMark camera ranking". https://9to5mac.com/2017/10/03/samsung-galaxy-note-8-ties-iphone-8-plus-camera-ranking/. 
  37. ↑ Potuck, Michael (November 6, 2017). "iPhone X scores 97 on DxOMark camera ranking, just behind Google Pixel 2". https://9to5mac.com/2017/11/06/iphone-x-scores-97-dxomark/. 
  38. ↑ Review of the Galaxy S3 video camera by GSMArena
  39. ↑ "Sony Xperia S review: NXT of kin". p. 6. https://www.gsmarena.com/sony_xperia_s-review-741p6.php. 
  40. ↑ Rosenberg, Adam (September 1, 2018). "Apple sets up a replacement program for certain defective iPhone 8 devices". Mashable. https://mashable.com/article/iphone-8-defective-logic-board-fixes-free/. 
  41. ↑ "iPhone 8 Logic Board Replacement Program". Apple Inc.. August 31, 2018. https://www.apple.com/support/iphone-8-logic-board-replacement-program/. 

External links

  • – official site
Preceded by
iPhone 7/7 Plus 		iPhone
11th generation
alongside iPhone X 		Succeeded by
iPhone XR




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