how do i gain space on phone
sent iphone info to the cloud how do i create more storage on the phone now
iPhone 5s, iOS 11.2.5
iPhone 5s was available in 16, 32, 64 GB.
How to check the storage on your iPhone, iPad, and iPod touch - Apple Support
You may gain space by offloading apps, audio files, video files, photos, possibly mail.
If your regular phone use requires more storage than this phone has, then it is perhaps time to look at a replacement model with more storage.