How to save data usage on Android devices?

You can save data on Android devices through a dual approach of system settings + app management. The core operations are as follows, compatible with mainstream brand models:

Precisely control app data usage: Go to Data Usage, select apps that consume a lot of data, and disable their Background Data permission. For social media and video apps, turn off auto-play and auto-download functions when using mobile data, and reduce playback/download quality.

Turn off unnecessary synchronization and updates: Disable Auto-sync for accounts in settings, and set system updates and app store downloads to WiFi only. For apps like maps and music, download offline resources (such as offline maps, offline playlists) in a WiFi environment in advance to avoid real-time network connection and data consumption.