IOS 11 on iPhone 6


macrumors 6502
Original poster
Nov 17, 2013
I would like to install ios11 on my iPhone 6 but I am concerned than it might slow it down.

Has anyone tried ios11 with iPhone 6?

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macrumors G3
Oct 1, 2005
Colorado Springs, CO
I’ve got a 6 Plus so maybe there is a difference but I’ve noticed no performance drop (it got noticeably faster on the second to last beta which I wish they would’ve left at the loss of some battery life). The media player UI is definitely better, I personally like the customizable Control Center, and the app opening and closing animation feels right now. I’d upgrade again.


macrumors member
Apr 2, 2013
Sometimes it „refreshes?” The apps? I am turning whatsapp on and I have to wait 3-4 seconds to do anything. Same with messages.
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macrumors 65816
Dec 17, 2013
Pffffffff, it's do it and if you don't like it, you still have the time to go back. Make your own decision.


macrumors member
May 16, 2017
Toronto, Canada
'User experience will vary'. Not helpful, but that certainly seems to be the case if you look on this and other Forums.
One wonders how this is possible - Apple has only one OS, oversees the construction of the only (limited model) devices that can run it, and controls how users get the 'upgrade'. There should be a whole lot more consistency involved...


macrumors G3
May 25, 2004
dont know what to do. I need iOS 11 installed for my S3 watch.. its just sitting in the box right now.... :(

Jack Neill

macrumors 6502
Sep 13, 2015
San Antonio Texas
dont know what to do. I need iOS 11 installed for my S3 watch.. its just sitting in the box right now.... :(
Go for it, after the phone settles in, the performance hit inst that bad at all. Its there but manageable.
I installed it and i regret it.
Go back. 10.3.3 is still being signed. I went back on my iPad Mini 2, but I left my 6 on 11
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Jack Neill

macrumors 6502
Sep 13, 2015
San Antonio Texas
What was your experience with iPad Mini 2 on iOS 11? Will you try it with 11.1 or you will stay on 10.3.3?
OTA or IPSW and start fresh, wither way it just wasn't worth using. I will keep it on 10.3.3 for now, I would be careful of 11.1 since if that doesn't go well there wont be a way back like there is this week.

My 6 is fine tho, I would still recommend going for 11 on a 6.


macrumors member
Sep 19, 2015
I have a 6S+. 11 is fairly stable for a .0 release. However, battery life is not good and Safari is definitely slower. I went back to 10.3.3 and am gonna wait until folks say that perf is great with 11.x.


macrumors 6502a
Nov 20, 2009
London, UK
I agree with bbrks... it's50/50. It's definitely slower than iOS10.3.3.

However if you disable Siri Search and Look Up suggestions (I had already had to disable Spotlight suggestions in iOS10 to be fair), especially for Safari, Mail and Slack, as well as Handoff, and if you limit background app refresh and "Always" location sharing to a very small and strategic set of apps, you should be doing OK.

iMessage has become really sluggish, though, to the point where I've completely switched to Whatsapp, which is still very fast. I get a lot of reloads and hangs on Safari. Multi-tasking is a bit tough. And Facebook takes ages to load. And sharing photos/videos from the share tab mostly crashes, I'm not sure why.

But I like the butter-smooth opening animations for apps, the new control center, the new Mail design, the absence of text on the icons in the dock, the Files app and it's amazing integration of Box, the better connectivity to public wi-fi, the improved "Memories" tab in Photos, the storage optimizations, better controls over use of location services by apps, always-on Bluetooth for easier use of Airdrop, possibility to shut down Mobile Data in one touch, several levels of intensity with the torch (long-press!), blocking of cross-site tracking in Safari...

So all in all, I think I'm going to remain on iOS11 and hope that 11.x updates increase speed!
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macrumors newbie
Dec 12, 2012
I have an iPhone 6 ... seems a tad bit slower, but i read that that IOS 11 will get snappier with time as the phone re-indexes (?) ... has anyone else heard this? I always upgrade the iOS ... can't help it. Though, always seemed strange that Apple provides "no way to go back." I wonder why this is?

Colonel Panik

macrumors regular
Feb 23, 2004
Dublin, Ireland
I regret installing it on my iPhone 6. Almost everything is slower. As kyjaotkb said, Messages is sluggish. If I haven't had it open in the last few minutes it can then take 4 to 6 seconds before the screen is anything other than white.
I think the OS is aggressively closing apps, not just sending them to sleep.
I'm waiting for 11.1, and am going to leave my iPad mini running iOS 10.

Not to mention bugs. Can anyone replicate this: Open Messages, swipe on the bottom app shelf until you get to the ... (more). Then try delete the Store app. Boom! Instant crash.


macrumors 6502a
Oct 26, 2012
the only thing that's really sluggish with mine is the flipping from landscape to portrait, which can be really annoying.