Should I trust YouTube Geekbench scores when deciding to update iOS on my iPhone?

I've come across a YouTube channel that shows geekbench tests about some iphone models comparing their battery life and cpu performance with each iOS version from ios 17 all the way to ios 18.4. Should i trust those benchmarks when deciding if it's worth updating or not?



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iPhone 15, iOS 17

Posted on Apr 8, 2025 4:59 AM

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Posted on Apr 8, 2025 5:29 AM

Should I trust YouTube Geekbench scores when deciding to update iOS on my iPhone?


No, never. YouTube is a wasteland of dis/mis information and outright lies. People who post this stuff could not care less about the truth. They are there to make money from people who watch their blathering nonsense.

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Apr 8, 2025 5:29 AM in response to iphonerrr

Should I trust YouTube Geekbench scores when deciding to update iOS on my iPhone?


No, never. YouTube is a wasteland of dis/mis information and outright lies. People who post this stuff could not care less about the truth. They are there to make money from people who watch their blathering nonsense.

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Apr 8, 2025 5:11 AM in response to iphonerrr

I’m not sure how Geekbench, speed tests, relate to battery tests. But overall those kinds of tests are meaningless and just get the creators clicks (income) so they don’t care about the validity of the tests. At the end of the day, it’s proved nothing and the creator has more coin in his pocket.

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Apr 8, 2025 5:25 AM in response to iphonerrr

Hello~ I had no problems with battery drain after updating and security is always my main concern. I also happen put absolutely zero confidence in those types of posts on YouTube. Also I would not be scared…if your battery dips to 80% or lower have it replaced by Apple. Enjoy your iPhone…


~Katana-San~

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Apr 8, 2025 5:50 AM in response to iphonerrr

Hello once more~ As I have indicated…security is my main concern. New features are usually just a minor consideration for me and if the battery needs replacement later on then so be it. Just enjoy your iPhone and take care. It’s been nice working with you :-)


~Katana-San~

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Apr 9, 2025 6:47 AM in response to iphonerrr

iphonerrr wrote:

Okay i see, from what you and everyone else here says, I'm not going to trust a YouTube video. I'm just still considering updating. Well, I'm neutral about the new features that ios 18 brings. My main concerns are battery life and overall system performance. I don't mind about features and security. Of course tho I'll update if battery life and system performance don't get negatively impacted. Though it's normal and logical that performance and battery life will be negatively impacted since there will be new features and more stuff than the older ios versions so they will drain more battery and system performance right?

You can do a search for every single iOS version, and you'll find that people complain about it decreasing their battery life. So, either Apple is completely incompetent or... people are mistaken. Given that most people don't report such problems, I'm going with the latter.


You will see greater battery use right after a major update, usually for about 24-48 hours, while the phone finishes up all the background housekeeping tasks. It's also possible that your maximum battery capacity will change as the iOS updates also re-calibrate that estimate (and that's all it is, an estimate).


There have been a few rare instances where an update caused unexpected battery drain in specific hardware. Apple usually fixes that within days. I've seen no such reports for iOS 18.4.

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Apr 8, 2025 5:17 AM in response to Katana-San

Idk I'm just scared. I've seen many people complaining that after updating they have battery drain problems. (I'm not talking about the indexing stuff that last a few days to a week) I'm talking about general and constant battery drain even after those processes are done.

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Apr 8, 2025 5:20 AM in response to Jeff Donald

You might be right about the income thing. I wish i could show you the tests tho but i assume that it's not allowed here to send links or say the name of the youtube channel. Basically what he does is that he runs a program i think geekbench and lets it open all the time until the battery on each phone completely drains. Then he puts the results in a graph that has the battery life and the ios version. So let's say for example the graph shows that for the model iPhone 15 the battery on ios 18.1 lasted 18 hours, then on ios 18.4 the battery lasted 15 hours. I wish i was allowed to send a screenshot here but I think I'm not.

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Apr 8, 2025 5:30 AM in response to iphonerrr

I’ve seen many of the battery comparisons YouTube videos. The testers are trying to simulate real world testing, but it’s far from it. There are way more important factors than daily battery capacity, for most users.


But if daily capacity is your number one concern, buy an external battery that attaches via MagSafe. Then you’ll have all day and all night battery capacity.


Geekbench is just a diagnostic tool that might identify performance issues. It really isn’t all that useful except for bragging rights on which device is fastest.

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Apr 8, 2025 5:46 AM in response to Katana-San

Okay i see, from what you and everyone else here says, I'm not going to trust a YouTube video. I'm just still considering updating. Well, I'm neutral about the new features that ios 18 brings. My main concerns are battery life and overall system performance. I don't mind about features and security. Of course tho I'll update if battery life and system performance don't get negatively impacted. Though it's normal and logical that performance and battery life will be negatively impacted since there will be new features and more stuff than the older ios versions so they will drain more battery and system performance right?

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Should I trust YouTube Geekbench scores when deciding to update iOS on my iPhone?

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