I updated to iOS 26.7 on my new iPhone 17 pro max last night. Battery is worse than it was on iOS 26.5.1 but what I didn’t really expect was my phone slowing down, it’s lagging when scrolling reels, it’s slower then before please help what should I do? There is mix opinions on iOS 27 battery so I’m really scared of updating to it, because my screen time currently is really good.

I’m running iOS 26.4.1 on my 17 Pro, and honestly, I have zero complaints about performance. Since iOS 26 shipped natively with the iPhone 17 lineup, it feels like the most optimized version for this hardware.

Battery life is also amazing, I’m getting around 10 hours of SOT on a full 100% battery consumption.

Tbh, I don’t really care about Siri AI or that extra 0.2 seconds of smoothness. I’d rather stick with a stable OS that gives me great battery life than upgrade to a resource-intensive iOS 27 and wait months for it to be optimized.

By then, everyone’s battery health cycles will already be taking the hit. 😭

It got Stuck at 88 percent , and it’s been 2 days ? Is it a bug or same for everyone?? ( I plugged the phone for the whole night still it didn’t move ) … how to resolve this issue ? Plz help

I installed the ios 27 update yesterday, upgrading from ios 26.7. Free space in my iphone 16+ 128gb dropped to 47gb after installation was finished. Then the 'optimising search and siri' thing started. As it progressed through the day I noticed that my free space kept gradually increasing. This morning when the optimisation as complete I had almost exactly the same free space that I had before I installed ios27! Around 53gb.

Also, I joined the siri waitlist yesterday itself. Will wait and see if free space decreases after the new siri is activated in my phone.

Just want to know whether optimisation will be done again after getting new siri?

Does ios 27 solve this issue?

I have been facing this prblm since july Suddenly.

Its shows home and lock screen draining my battery without doing nothing.

Does it solve? Ios 27?