Settings
On the Settings screen, tap Device maintenance →Ultra data saving, and then tap the switch to activate it.
Activate the Opera Max data
compress Internet data when using the mobile network.
You can change the data usage monitoring period. On the Settings screen, tap Connections →Data usage →Billing cycle and data warning →Start billing cycle on, and then change the start date of the cycle.
Apps
Manage the device’s apps and change their settings. You can view the apps’usage information, change their notification or permission settings, or uninstall or disable unnecessary apps.
On the Settings screen, tap Apps.
135