Wearer detection allows us to leave the Oppo Smartphone unlocked for the time it is worn. Sensors detect when the device is in motion, so there is no need to unlock it again. However, Smart Lock cannot detect who is wearing the device.

Android 10 | ColorOS 7.0
Step 1:  Open the  Settings
Step 2:  Tap on  Security
Step 3:  Tap on  Smart Lock
Step 4:  Enter your current  Password/PIN/Pattern
Step 5:  Tap on  On-body detection
Step 6:  Enable or Disable  On-body detection
Step 7:  Confirm with  Continue
  1. Open the Settings
  2. Tap on Security
  3. Tap on Smart Lock
  4. Enter your current Password/PIN/Pattern
  5. Tap on On-body detection
  6. Enable or Disable On-body detection
  7. Confirm with Continue

Oppo Instructions