diddlebugz Said:
"Optimal storage for 32G iPhone 7plus: What's the best cushion for my phone? I presently have 8G cushion. Should it be more? Note: I have 2TB iCloud of which I use 12%. Settings on photos is set as optimized. Podcasts have been removed just so I can get control of the recent "storage full" alert. Voice memos have been removed. Thanks!"
-------
Troubleshooting iPhone Storage:
Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support.
So, what to do:
Clear Space:
Try clearing internal storage though use of the following:
What Space to Clear:
A. Clear Temporary Internet Files:
Clear your Temporary Internet Files(Cookies & Cache) of Safari:
And...
B. Clean TV and Music Libraries:
Remove all unneeded files from your TV and Music Libraries. Full-Movies take up 2-4GB typically, and a bunch of those would take up a load of storage, ideally. So, if you have any movies that are not needed, then delete them.
And...
C. "Other" being the Culprit:
System Data (formerly called "Other"), basically contains unnecessary files such as caches that are used for system ease of use - all of which gather over time. Caches would be being used for remembrance of application use. Use my User Tip: How to Clear "Other" in your iPhone's Storage - Use Backup - User Tip.