Comparison on iPhone 4s, 5, 5s and 6 Plus of iOS 8.4.1 vs. iOS 9 [video]

One of the main questions that users face when Apple launches a new operating system is whether or not they should update. The apple company is characterized by making its most recent versions are compatible with a large number of products currently on the market, which does not mean that it will be equally fluid in all of them.

iOS 9 has been available for a couple of days on all iPhones from 4s onwards (4s, 5, 5c, 5s, 6 and 6 Plus), which provides us with a wide range of products where the operation of the system goes to be different from the latest public version of iOS 8. In this video we can see how one and the other system behave on these devices.

iPhone 4s

This model is undoubtedly the one that we can least expect. A device from 2011 that is still alive, but its daily performance is already far from what it was in its day. At power-up, iOS 5 responds 8.4.1 seconds earlier than iOS 9, a speed that we also see when loading applications, where iSO 8 is more fluid than the most recent system.

iPhone 5

In this case, despite the fact that iOS 9 turns on a little earlier than its predecessor, when it comes to opening applications, iOS 8.4.1 is still the leader in this iPhone from 2012.

iPhone 5s

iOS 9 wins the game at power-up by three seconds to iOS 8.4.1 although, as we have seen in the previous cases, navigating within the system it is the latter that opens the applications first.

6 iPhone Plus

Perhaps it would be expected that in this device the tables could change, but the truth is that the tonic of the previous cases is repeated. Although iOS 9 turns on a second earlier, it continues to lag behind when it comes to moving between apps.

We must bear in mind that it is the first version of iOS 9 against an already very mature iOS 8, and it is normal to find these differences in performance. As the system progresses, we are confident that it will substantially improve the overall performance of the devices.


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  1.   Ivan said

    It's the same old story. (It will be solved in subsequent updates) Thing that never happens and while we see normal that every year the new version of iOS is increasingly slow, heavy and with more bugs.

    iOS left its speed and fluidity in 6.1.3

    1.    x95 said

      Totally agree. Something that I have repeated around here on many occasions. The best Apple system has been version 6.1.4. The last of iOS 6. The performance of the iPhone 5 in that version was impressive. Both in performance and software. Now all the white interfaces, without contrasts, without background ... a disaster that will affect the view in a few years (the color white is very bad)

      PS: stop saying the tagline "bitten apple" on the news. Boring ...

  2.   José Luis said

    Especially considering that this iOS 9 is already an "update" of iOS 8.4.1

  3.   altergeek said

    That the 6 / 6plus has lag is unforgivable, I want to see what the lovers of the brand say.

  4.   chooviik said

    Well I have not noticed any lag or any problem, what has disappointed me is that in the veins they had to select a text you gave it with two fingers and you could use it type to the SwipeSelection tweaks and they have removed it they have only left it for the tablet, another thing is about Siri he hears Siri that it was said that it was not necessary to be connected for it to work because I see it the same way it asks you some questions to recognize your
    voice but it has to be connected for it to work

  5.   Juanjo said

    What a kick to the dictionary. Betas with V and would without H.

  6.   Yur said

    Apple has lied again. They said in June that with this system all devices would be better, and all devices, even last year, are much worse. "Coincidentally", this error appears when the new phone goes out to the new one. No one should play the game of these greedy people. Download to version 8.4.1 while you can, and save the sshh with TinyUmbrella in case you need to download later.

  7.   barde-jumper said

    I have updated the ipad 2 and it is very slow, the issue of lag is unbearable, so the 6 does not update, I stay at 8,4,1. I'm always fed up with the same song. I'm thinking when it's time to switch, bye apple. To steal from the road.

  8.   Richard said

    Version 6 is already behind my friend. For me, the best has been iOS 7.1.2 that if it is true that it was perfect and it was also the new design.

  9.   Alexander said

    A query. Neither on my ipad 3 nor on my iphone 4s in the notes application I can draw, I have updated notes but I can only add images

  10.   Carlos said

    Likewise, on my 4s and on my iPad mini I can't draw in the notes app. And the new news app does not appear ..

  11.   Daniel Herrera said

    the siri cannot be heard and neither has the spotlight that slides to the left it also weighs the same as ios 8.1.4 it stays slow

  12.   polpetyzf said

    By God what are you doing with the advertising on the page, you can no longer even read the articles because they cut the sides of the screen ... already vast from so much abuse. Responsible advertising please

  13.   henart19 said

    The update only took me 2 hours. I preferred to go back to the previous version, without lag or anything like that.