Delete unused apps
Clear app cache and data
Remove duplicate photos and videos
Back up media to cloud storage
Transfer files to a computer
Delete old messages and attachments
Uninstall large games and offline content
Use a microSD card if supported
Move apps to SD card if supported
Empty trash or recently deleted folders
Remove downloaded files you no longer need
Clear browser downloads and offline content
Disable automatic media downloads in messaging apps
Use streaming instead of downloading music and videos
Compress photos and videos
Delete old voice recordings and call recordings
Remove unused documents and PDFs
Check storage usage and remove the largest files
Reset the phone after backing up important data