1. Clean up Safari browsing history. IPhone users will use Safari to browse web pages, but the browsed web pages will be temporarily stored in their mobile phones, which will take up a lot of memory over time. You can check how much mobile phone capacity Safari takes up first, and then clean up the storage space by operation.
2. Uninstall unnecessary applications. You can check the storage space of your phone, find out the App that takes up a lot of space, and uninstall it.