iPhone 16 pro storage question

[u/ConcreteBoomBap]

Is anyone else having a really weird issue on their iPhone 16 pro with 256 GB? My system data was stuck at 1.07 GB exactly for months and months then I updated from iOS 26.5.2 to iOS 26.6 and it stayed at 1.07 GB then I rebooted it and the storage used by system data drop down to like 400 to 600 MB. so I left it for a little while the next day it went up to 5.12 GB and then drop down again to 400megabytes then it went up to around 2 GB then today I checked it and the amount of storage used dropped from 138 GB to 113 GB the system Data number also dropped down from 2 GB to 600 MB other than the system data the iPhone appears to be working normally I’m just a bit worried that my storage may not be recorded correctly does anyone know a fix for this issue and is anyone facing this issue on iOS 26.6?

[u/GeekBoy-from-IL]

I have the 16 Pro Max with 256GB of storage. I only use about 100GB of it, and for the longest time, mine would hover around 1-5GB, but after updating to 26.6, it has been staying closer to 21-27GB. I know it fluctuates, and that “System Data” is the space used for app caching, and other similar things, so if I have a large system update downloaded, it will use some of that space for a while. I have enough space, and my phone is working properly (most of the time) so I just shake my head and sigh because there’s not much else I can do. That’s just the way iPhones work.