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ision technologies ov5650 5 0 mp af isight with five element lens hybrid ir filter video stabilisation face detection ƒ 2 4 aperture connectivity wi fi 802 11 a b g n at 2 4 ghz and 5 ghz bluetooth 4 0 gsm umts hsdpa 850 1900 2100 mhz gsm edge 850 900 1800 1900 mhz cdma cdma ev do rev a 800 1900 mhz gsm lte 700 800 850 900 1700 1800 1900 2100 2600 mhz umts hsdpa hspa dc hsdpa 850 900 1900 2100 mhz gsm edge 850 900 1800 1900 mhz cdma lte 700 mhz cdma ev do rev a 800 1900 mhz umts hsdpa hspa dc hsdpa 850 900 1900 2100 mhz gsm edge 850 900 1800 1900 mhz power built in rechargeable li po battery 11 560 mah 3 7 v 42 5 w h 153 kj 14 online services app store itunes store ibookstore icloud game center dimensions 9 50 in 241 mm height 7 31 in 186 mm width 0 37 in 9 4 mm depth weight wi fi model 1 44 lb 650 g wi fi cellular model 1 46 lb 660 g predecessor ipad 3rd generation successor ipad air 1st generation ipad 5th generation related ipad mini website ipad with retina display at the wayback machine archived november 2 2012 this article is part of a series on the ipad 1st 2 3rd 4th 5th 6th 7th 8th 9th 10th 11th air 1st 2 3rd 4th 5th m2 m3 m4 mini 1st 2 3 4 5th 6th a17 pro pro 1st 2nd 3rd 4th 5th 6th m4 m5 list of ipad models v t e the ipad 4th generation 15 marketed as ipad with retina display 16 colloquially referred to as the ipad 4 17 18 is a tablet computer developed and marketed by apple compared to its predecessor the third generation ipad the fourth generation ipad maintained the retina display but featured new and upgraded components such as the apple a6x chip and the lightning connector which was introduced on september 12 2012 it shipped with ios 6 which provides a platform for audio visual media including electronic books periodicals films music computer games presentations and web content like the third generation ipad it replaced it was supported by five major ios releases in this case ios 6 7 8 9 and 10 it was announced at a media conference on october 23 2012 as the fourth generation of the ipad line and was first released on november 2 2012 in 35 countries and then through december in ten other countries including china india and brazil the third generation was discontinued following the fourth s announcement after only seven months of general availability 19 the device is available with either a black or white front glass panel and various connectivity and storage options storage size options include 16 gb 32 gb 64 gb and 128 gb the available connectivity options are wi fi only and wi fi cellular with lte capabilities the fourth generation ipad received positive reviews and was praised for its hardware improvements as well as the retina display which was also featured in the device s predecessor furthermore benchmarks reveal that the fourth generation ipad is able to perform cpu reliant tasks twice as fast as its predecessor during the first weekend of sales an aggregated amount of 3 million fourth generation ipads and ipads were sold history edit the california theatre where the fourth generation ipad was announced on october 23 2012 rumors regarding the next generation ipad emerged shortly after the release of the third generation ipad at that point some speculated that the next ipad released would be of a smaller size 20 further speculations emerged in july 2012 when digitimes with the help of unspecified sources claimed that apple made small revisions to the then upcoming ipad and scheduled its release for late 2012 21 22 on october 16 2012 apple announced a media event scheduled for october 23 at the california theatre in san jose california 23 the company did not pre disclose the subject of the event but it was widely expected to be regarding the ipad mini 24 photographic images of the device s dock connector and front camera emerged shortly before the media event 25 at the media event apple ceo tim cook introduced a new version of ibooks and new generations of the macbook pro mac mini and the imac before unveiling the fourth generation ipad and the lower end ipad mini 26 during the unveiling apple stated that the fourth generation ipad would be available to pre order online in a selected number of countries starting october 26 27 on november 2 apple released the wi fi model of device in 35 countries across europe east asia and north america the cellular model was released in store a few weeks after the initial release of the device 27 the release of the fourth generation ipad led to the discontinuation of its predecessor which angered many third generation ipad users 26 in response apple extended its 14 day return policy to 30 days itproportal noted that since the price of both models is identical consumers that purchased the third generation ipad within this time frame were effectively allowed to exchange their discontinued device for the fourth generation model 28 on january 29 2013 apple announced and scheduled the launch of the 128 gb variant of 4th generation ipad it was released on february 5 2013 29 following the announcement of the ipad air on october 22 2013 sales of the fourth generation ipad were discontinued 30 the fourth generation ipad was reintroduced on march 18 2014 following the discontinuation of the ipad 2 31 in order to make its reintroduction a low end device to the ipad air its price was cut by 20 over its original launch price on october 16 2014 the fourth generation ipad was discontinued in favor of the ipad air 2 the ipad air took its place as the entry level ipad at that time features edit software edit see also ios ios 6 ios 7 ios 8 ios 9 and ios 10 the fourth generation ipad shipped with ios 6 0 and later ios 7 it can act as a hotspot with some carriers sharing its internet connection over wi fi bluetooth or usb 32 and also access the apple app store a digital application distribution platform for ios the service allows users to browse and download applications from the itunes store that were developed with xcode and the ios sdk and were published through apple from the app store garageband imovie iphoto and the iwork apps pages keynote and numbers are available 33 the ipad comes with several pre installed applications including siri safari mail photos video music itunes app store maps notes calendar game center photo booth and contacts 34 like all ios devices the ipad can sync content and other data with a mac or pc using itunes although ios 5 and later can be managed and backed up without a computer although the tablet is not designed to make phone calls over a cellular network users can use a headset or the built in speaker and microphone to place phone calls over wi fi or cellular using a voip application such as skype 35 the device has a dictation application using the same voice recognition technology as the iphone 4s the user speaks and the ipad types what they say on the screen though the ipad must have an internet connection available via wi fi or cellular network due to the feature s reliance on apple servers to translate the speech 32 the fourth generation ipad has an optional ibooks application which displays books and other epub format content downloaded from ibooks 36 several major book publishers including penguin books harpercollins simon schuster and macmillan have committed to publishing books for the device 37 despite being a direct competitor to both the amazon kindle and barnes noble nook 38 both amazon com and barnes noble offer e reader apps for the ipad 39 40 the 4th generation ipad unlike its immediate predecessor the 3rd generation ipad is supported by ios 10 however it was announced at the apple wwdc 2017 that the 4th generation ipad along with the iphone 5 5c will not support ios 11 as it is a 32 bit ipad ios 10 3 3 is the latest and final version of ios to include support for the wi fi only models of these devices 41 ios 10 3 4 is the latest and final version of ios to include support for the cellular models of these devices 42 released to fix an issue caused by the gps week number rollover hardware edit see also ipad hardware the device has an apple a6x soc which comprises a 32 bit apple dual core cpu running at 1 4 ghz and a quad core powervr sgx554mp4 gpu 1 gb of ram 43 it also features a 5 megapixel rear facing camera capable of 1080p video recording and a 720p hd front facing videophone camera designed for facetime 44 the device features a 9 7 diagonal display with a resolution of 2 048 by 1 536 qxga resulting in 3 1 million pixels this gives the display a pixel density of 264 ppi the total number of pixels used in the display of the fourth generation ipad is four times that of the ipad 2 providing even scaling from the prior model 45 46 as with all previous generations of iphone and ipad hardware there are four buttons and one switch on the fourth generation ipad with the device in its portrait orientation these are a home button on the face of the device under the display that returns the user to the home screen a wake sleep button on the top edge of the device and two buttons on the upper right side of the device performing volume up down functions above which is a switch whose function varies according to device settings generally functioning either to switch the device into or out of silent mode or to lock unlock the orientation of the screen 13 externally the fourth generation ipad is identical to its predecessor apart from the differences between dock connectors used and change of manufacturers that produce the display 14 in addition the wi fi only version weighs 652 grams while the cellular model weighs 662 grams 2 grams heavier than their respective predecessors 13 47 the display responds to other sensors an ambient light sensor to adjust screen brightness and a 3 axis accelerometer to sense orientation and switch between portrait and landscape modes unlike the iphone and ipod touch s built in applications which work in three orientations portrait landscape left and landscape right the ipad s built in applications support screen rotation in all four orientations including upside down consequently the device has no intrinsic native orientation only the relative position of the home button changes 13 the tablet is manufactured either with or without the capability to communicate over a cellular network all models can connect to a wireless lan via wi fi the fourth generation ipad is available with 16 32 64 or 128 gb of internal flash memory with no expansion option apple sells a camera connection kit with an sd card reader but it can only be used to transfer photos and videos 13 the audio playback of the fourth generation ipad has a frequency response of 20 hz to 20 000 hz without third party software it can play the following audio formats he aac aac protected aac mp3 mp3 vbr audible formats 2 3 4 aea aax and aax alac aiff and wav 13 this ipad uses an internal rechargeable lithium ion polymer lipo battery that can hold a charge of 11 560 mah 14 the batteries are made in taiwan by simplo technology 60 and dynapack international technology 40 48 the ipad is designed to be charged with a relatively high current of 2 amps using the included 12 w usb power adapter and lightning connector while it can be charged by an older usb port from a computer these are limited to 500 milliamps 0 5 amps as a result if the ipad is in use while powered by a computer it may charge very slowly or not at all high power usb ports found in newer computers and accessories provide full charging capabilities 49 apple claims that the battery can provide up to 10 hours of video audio playback or web surfing on wi fi 9 hours of web surfing over a cellular connection or one month on standby 13 like any rechargeable battery the ipad s battery loses capacity over time however the ipad s battery is not user replaceable in a program similar to ipod and iphone battery replacement programs apple promised to replace an ipad that does not hold an electrical charge with a refurbished unit for a fee 50 51 during the battery replacement process user data is not preserved transferred and repaired or refurbished units come with a new case 52 the warranty on the refurbished unit may vary between jurisdictions the ipad 4th generation was the last ipad that has a 32 bit processor and one of the last apple products to have a 32 bit processor along with the iphone 5 and iphone 5c which has the a6 chips accessories edit apple lightning connector main article ipad accessories the smart cover introduced with the ipad 2 is a screen protector that magnetically attaches to the face of the ipad the cover has three folds which allow it to convert into a stand which is also held together by magnets the smart cover can also assume other positions by folding it 53 smart covers have a microfiber bottom that cleans the front of the ipad and wakes up the unit when the cover is removed it comes in five colors of both polyurethane and the more expensive leather 54 55 apple offers several other accessories 56 most of which are adapters for the proprietary lightning connector the only port besides the headphone jack 13 a dock holds the ipad at an angle and has a dock connector and audio line out port the ipad can use bluetooth keyboards that also work with macs and pcs 57 the ipad can be charged by a standalone power adapter wall charger compatible with ipods and iphones and a 12 watt charger is included 13 reception edit the fourth generation ipad received positive reviews from critics and commentators the review by gareth beavis of techradar praised the device for its high resolution retina display which techradar wrote is one of the most impressive we ve seen on a tablet to date however the reviewer also wrote that the screen lacks the punch seen in super amoled screens seen on devices like the samsung galaxy note 2 the review also praised the interface of the ipad for its simple design and easy to use layout 58 additionally other aspects such as the design of the ipad and updated soc were noted and praised in the review critically beavis noted that the ipad can still moderately heat up under medium usage however not to the extent seen in the third generation ipad 58 tim stevens of engadget praised the retina display and labelled it as the best screen available on tablets benchmarks and tests conducted by engadget resulted in stevens concluding that the fourth generation ipad is the fastest apple mobile device available surpassing a record that the iphone 5 held for a brief period 47 benchmark tests conducted by slashgear concluded that the soc of the fourth generation ipad is able to perform cpu reliant tasks more than twice as fast as that of the third generation ipad 59 a series of benchmark tests conducted on the graphics performance of the fourth generation ipad by anandtech resulted in the device achieving the highest score compared to other consumer mobile devices including the samsung galaxy s iii nexus 10 and third generation ipad the performance increase of the fourth generation i...