How does China Unicom check traffic?

China Unicom mobile phone customers can check your traffic usage at any time through China Unicom APP:

1. download and log in to China Unicom APP: click "residual traffic" on the home page to directly enter the "residual query" page;

2. China Unicom APP: Select Service-Query-Balance Query.

Tips: The specific functions are subject to the actual page display content.