Method 1: Enter I Housekeeper-(practical)-Healthy use of equipment/screen usage time-click "View usage details";
Method 2: Go to Settings-Healthy Use of Equipment/Screen Usage Time-Click "View Usage Details".
You can view the screen usage time of nearly 7 days at most.
If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.