After enabling the notification center to display traffic information, you can view the current month's data usage at the top of the control center.
Setting method:：
realme UI 7.0 & 6.0: Settings > Notification & Quick Settings > More Settings > Show data usage in Quick Settings.
realme UI 5.0 & 4.0: Settings > Notification & status bar > More Settings > Display data usage in notification drawer.
realme UI 3.0 & 2.0: Settings > Notifications & Status Bar > Display data usage in notification drawer.
realme UI S & T & R & Go & U Edition: Not supported
Note: this function cannot be viewed in landscape screen status.