iPhone 16 System Data is taking up half the storage

Hello everyone,


Does anyone else have an absurdly high amount of System Data? I have an iPhone 16 that I bought in October 2024 with 128 GB storage. I have never had issues like this where the storage keeps increasing on its own. As you can see 57,71 GB is System Data and iOS is 12,26 GB, that is half my storage. Does anyone maybe have tips on how to fix this or maybe if I am doing something wrong?


Many thanks in advance!!!



iPhone 16, iOS 18

Posted on Feb 20, 2026 4:40 AM

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Posted on Feb 20, 2026 5:00 AM

This most often indicates you have some corrupt data in your System Data. And the way to fix it is to (preferably using your computer) backup your iPhone, then restore it from backup.


This link explains how to do that --> https://support.apple.com/en-us/118105


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iPhone 16 System Data is taking up half the storage

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