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May 24th, 2011, 12:51 GMT · By

iOS 5 Leaves iPhone 3GS Behind, Likely iPad 1 as Well - Source

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Tweet by Eldar Murtazin
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A person who is knowledgeable in all things related to the cell phone industry claims to have learned that Apple plans to drop the iPhone 3GS as a supported device for the upcoming major revision of iOS.

The John Gruber-equivalent in the cell phone industry, Eldar Murtazin (editor-in-chief for Mobile-Review.com, Analyst, MRG) tweeted a very interesting piece of information just a few hours ago.

The pundit wrote: “Just one comment. Apple iPhone 3Gs wont be upgradable to iOS 5.x. iPhone 4 will.”

Murtazin doesn’t say where or how he got his information. He also doesn’t specify whether the decision is final, although it certainly appears to be from his wording.

But Apple may well be testing the software against the two-year old 3GS for compatibility still.

Even though the company may have a few more bugs to iron out, iOS 5 may still be compatible with the handset’s ARM processor running at 600 MHz and the 256MB of RAM it packs.

However, if history is any indication, the cell phone reviewer is most probably right.

Apple barely got the original iPhone aboard the 3.0 train, whereas iOS 4.0 left both the original and the iPhone 3G in a trail of dust.

Even the higher-specced iPhone 3GS is having a hard time handling multitasking and other iOS 4-specific enhancements that demand not only the A4 chip, but also more random access memory to run smoothly.

If this is the case, we would assume the original iPad is also scrubbed off the iOS 5 compatibility list.

Following their thorough teardown of the Apple tablet last year, the tinkerers at iFixit could confirm that Apple had strangely equipped the tablet with just 256MB of RAM.

As such, the iPhone 4, iPod touch 4G and iPad 2 all have 512 megs of memory, which should make them all eligible for the upgrade to iOS 5.

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READER COMMENTS:


Comment #1 by: The Skeptic on 24 May 2011, 23:04 UTC reply to this comment

This is wrong. I bet that the original iPad will be supported on iOS5 as will iPhone 3Gs. iPad was available for sale to April this year. iPhone 3GS is still being sold by Apple.

iPhone 3G was supported by iOS4 up to 4.2.1 - more than a year after the phone was last sold.

The only alternative to this is that Apple may do security updates for iOS4 (as it does with OS X versions "one behind" the current release). However, I am betting that they will shoehorn iOS 5 into the older devices.

Apple does not abandon customers that quickly.


Comment #2 by: DOUG1820 on 24 May 2011, 23:27 UTC reply to this comment

No the iPod Touch 4g has only 256 MB of RAM just as the iPad and 3GS . I really don't see the amount of RAM as an issue as much as the amount of bandwidth available, the 3GS has a 32 bit bus while the iPod Touch and iPad have a 64 bit bus which allows for better memory management and smoother app switching as the app can be placed "dormant" and recalled when necessary, this is what causes lag with app switching on a 3GS.


Comment #3 by: Douglas on 24 May 2011, 23:38 UTC reply to this comment

I don't really think the amount of RAM is an issue as much as it is on a traditional PC. In fact, the iPod Touch 4th generation also had 256 MB of RAM, much like the iPad and 3GS. What actually plays a larger role is Memory Bandwidth, the 3GS and older devices use a more traditional, limited 32 bit bus which slows down the App switcher. My evidence for this is that App switching uses a lot of Bandwidth sending multitasking apps into a dormant state on a cache partition on the NAND flash. On a 3GS this action must use half the amount of bandwidth a modern IOS 4 device has a available which is a good reason the 3GS should be left at the last strain of the iOS 4.3 codebase to prevent this issue from making performance appear to be as bad as IOS4 on a 3G. The A4 in the iPad may have very little ram but have lots of bandwidth compared to a 3G device.


Comment #4 by: Awesomeness on 25 May 2011, 00:26 UTC reply to this comment

The iPod Touch 4G has the A4 chip but only has 256mb of RAM. See http://en.wikipedia.org/wiki/IPod_Touch and http://www.pinoytechblog.com/archives/ipod-touch-2g-3g-and-4g-specs-comparison


Comment #5 by: Badsey on 28 May 2011, 16:44 UTC reply to this comment

i cant see them dropping iPad 1 iSO5, because its not far from over a year old, usually when they make a 3rd Gen iPad and 2 major updates


Comment #6 by: Mile on 31 May 2011, 23:05 UTC reply to this comment

They better not drop the 3gs i still have a long time to go on my contract and i dont want to have a phone stuck on old software that cant get all of the new apps. They could overclock the processor like they did to the iphone 3g. Or they could at least reduce the features a it so it can handle it. it sucks if they dont because the 3gs isnt that old...


Comment #7 by: Aha on 01 Jun 2011, 14:43 UTC reply to this comment

Ipod touch 4G does not have 512 MB of RAM, it has 256, just like the 1st ipad.


Comment #8 by: EYZ LOCKED on 06 Jun 2011, 21:42 UTC reply to this comment

iOS5 is compatible with 3GS is states it on apple's website


Comment #9 by: Eddie on 21 Sep 2011, 02:13 UTC reply to this comment

iPod touch 4G has 256 MB of RAM, not 512


Comment #10 by: BBB on 12 Oct 2011, 23:40 UTC reply to this comment

Wow...so much for your "informed" source.

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