Hello, I have an Iphone 11 on iOS 18.3.1, I opened Twitch in the Safari browser and started watching the stream in full screen, I left the phone on the table (the phone without a case). I went away and listened to the stream with headphones. After a while, the sound began to interrupt, there was no sound for 30 seconds, there was 5 seconds and so on in a circle. I came to the phone to find out what was wrong. It turned out that the phone had heated up to such an extent that my hand could not stand to hold it. I turned off the Safari browser and left the phone to cool down. When it had completely cooled down, I said Google Chrome browser and opened the same stream in it and started watching, there was no heating. Has anyone encountered such overheating of a smartphone with the Safari browser?
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iph 11 Safari 18.3.1 overheat
- Thread starter fergus2019
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Sounds a bit strange. Sure, the device can heat up and should throttle the CPU/GPU if it does (if that's what being used). Do you have any add-ins/extensions in Safari?
Is it a fairly vanilla phone otherwise? No jailbreaks or similar?
The phone is normal, there have never been any jailbreaks. Since the 15th iOS, I have always updated over the air. I have never installed anything additionally in the Safari browser, everything is standard. On 17.7.1, everything was fine, and the battery consumption was very low. There was no heating either during use or during charging. I flashed it to the 18th iOS and problems with autonomy began. I tried to format all the data and install the firmware from the computer without restoring the settings and applications. This did not affect the battery consumption (the consumption is worse than on 17.7. 1). Then I flashed it to a special 18.3 for iPhone 11, and then 18.3.1. And now I have encountered this problem. I also noticed that when using the Safari browser, the battery consumption became more than it was on 17 iOS. During my entire time using this smartphone (new from the store), there were no such problems. The problems started with the installation of iOS 18.
I also noticed on iOS 18 that now the charge percentages are decreasing by 2%. That is, let's say there was 77% charge, after a minute it became 76% and after a second 75%.
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Safari on 18 consumes more juice for sure.
But excessive heat is usually a battery issue or a runaway process.
What’s the battery health at?
But excessive heat is usually a battery issue or a runaway process.
What’s the battery health at?
Battery is now 84%. There were no problems on 17.7.1. I don't understand what happened with 18.3.1. And yes, Safari began to consume more battery than in version 17.7.1. Now I use Google Chrome. There are no heatings with it.
Theres been heating issues reported with iOS 17 with Safari so i'll say its prob more a Safari issue than iOS issue. The problem is that Safari is updated with iOS updates so all you can do is prob wait for a bugfix if you haven't tweaked any settings in Safari that might trigger this behaviour.
As far as I know Chrome still uses webkit on iOS so its the same engine being used.
Would be interesting to know what Twitch is doing behing the scenes and if Safari blocks out stuff while Chrome doesn't.
Do you use VPN or have private relay enabled?
On iOS 17 I didn't have any heating in Safari. Now I use Google Chrome - it uses less battery and there is no heating. I didn't change anything in Safari and didn't install anything additionally. I don't use VPN, everything works without it on my home Internet
Ok,
I think I read somewhere that iCloud Private Relay can sometimes can use a lot of CPU, maybe streaming on Twitch in combination with Private relay can cause this (just an idea).
Check if you have it enabled.
Protect your web browsing with iCloud Private Relay on iPhone
iCloud Private Relay on iPhone hides your IP address and web browsing activity from network providers and websites.
support.apple.com
If you do, turn it off and test again.
Turn iCloud Private Relay on
Go to Settings
Note: You need to turn on iCloud Private Relay on each device where you want to use it.
Turn iCloud Private Relay off
- Go to Settings > [your name] > iCloud > Private Relay, then tap Private Relay.
- Do one of the following:
- Turn off iCloud Private Relay temporarily: Tap Turn Off Until Tomorrow.
Within 24 hours, iCloud Private Relay will turn back on automatically. If you want it to resume sooner, follow the instructions for turning it on at any time. - Turn off iCloud Private Relay completely: Tap Turn Off Private Relay.
- Turn off iCloud Private Relay temporarily: Tap Turn Off Until Tomorrow.
Also have a fallback browser so you can always compare. Firefox is a safe choice. Interesting the private relay could cause that, but I see no point to use icloud + for myself.
I didn't find Privat Relay on my account, it's not in the settings. I have a regular iCloud and copying to it is disabled.Ok,
I think I read somewhere that iCloud Private Relay can sometimes can use a lot of CPU, maybe streaming on Twitch in combination with Private relay can cause this (just an idea).
Check if you have it enabled.
Protect your web browsing with iCloud Private Relay on iPhone
iCloud Private Relay on iPhone hides your IP address and web browsing activity from network providers and websites.support.apple.com
If you do, turn it off and test again.
Turn iCloud Private Relay on
Go to Settings> [your name] > iCloud > Private Relay, then tap Private Relay.
Note: You need to turn on iCloud Private Relay on each device where you want to use it.
Turn iCloud Private Relay off
For information about turning off iCloud Private Relay temporarily for a specific website, see Temporarily allow a website to see your IP address.
- Go to Settings
> [your name] > iCloud > Private Relay, then tap Private Relay.- Do one of the following:
- Turn off iCloud Private Relay temporarily: Tap Turn Off Until Tomorrow.
Within 24 hours, iCloud Private Relay will turn back on automatically. If you want it to resume sooner, follow the instructions for turning it on at any time.- Turn off iCloud Private Relay completely: Tap Turn Off Private Relay.
Good, then we can rule that out. Guess its Safari that's acting up then.
Might be something that's fixed in future updates.
If you have the time report your experience to Apple.
Feedback - iPhone
Apple wants to hear from you. Send us your comments and feedback about iPhone.
www.apple.com
At the moment I use Google Chrome. It has a very inconvenient moment. For example, I watch a video on the YouTube website, the Internet is fast and the video goes without loading. But, the video playback pauses itself approximately every 1.5 - 5 minutes. I have to manually press "play". At the same time, I have "Attention Recognition" enabled and there are no such video pauses in Safari. The same applies to online broadcasts on YouTube or Twitch.
Ok, thanks for your help.Good, then we can rule that out. Guess its Safari that's acting up then.
Might be something that's fixed in future updates.
If you have the time report your experience to Apple.
Feedback - iPhone
Apple wants to hear from you. Send us your comments and feedback about iPhone.www.apple.com
Odd behaviour. I don't use Chrome myself, more of a Brave or Firefox guy. But don't use them as you do so can't comment on if they use "attantion recognition" or not.
Curious question, why do you use youtube and twitch via a webbrowser and not an app? My guess is that features such as attention awareness would work better in an app.
I don't like when there are many applications on the phone. And I was always satisfied with watching videos, movies, TV series and broadcasts through the Safari browser, no problems or inconveniences for me
Yesterday I observed the following situation. At 22:45 my "sleeping" focus turned on. Before that I was focusing, watching a broadcast on Twitch, after about 23:15 the phone started to heat up again in the area of the back cover under the cameras and in the area of the side on/off button, and the longer I continued to watch the broadcast, the more it heated up. I turned off the browser, waited a couple of minutes, opened the browser again and continued watching. The phone cooled down and did not heat up for about 10 minutes, then started up again. I tried 3 browsers: Safari - the phone starts to heat up almost immediately when I start watching the broadcast, Google Chrome - it also starts to heat up, but noticeably later than Safari. And Firefox - it also does not heat up right away. With all three, the phone started to heat up, as I described above. It seems that the heating is somehow related to the "sleeping" focus, but turning off the focus did not seem to fix the situation.
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I tried watching a broadcast on Twitch with the "sleep" focus turned on - the smartphone does not heat up in Safari or other browsers. It also does not heat up with the focus turned off. So something happens to the smartphone in the evening after 23:00, but what could it be?
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I conducted an experiment yesterday. I have the twitch app installed, I watched a movie there. The phone at 60% battery power began to get very hot and slow down the video. I turned on the power saving mode while continuing to watch the stream. The phone started to cool down slowly.