In addition to trusted locations, Smart Lock includes the ability to set equally trusted devices that will prevent the OnePlus smartphone from locking automatically even when the feature is enabled.

The devices must first be paired via Bluetooth in order to be activated.

A trusted device could be, for example, a Smartwatch that is carried within range of the smartphone.

Android 10 | OxygenOS 10.0
Trusted devices -  Open the  Settings
Trusted devices -  Tap on  Security & lock screen
Trusted devices -  Tap on  Smart Lock
Trusted devices -  Enter the current  pattern,   PIN  or  password
Trusted devices -  Tap on  Trusted devices
Trusted devices -  Tap on  Add trusted device  and follow the instructions on screen
  1. Open the Settings
  2. Tap on Security & lock screen
  3. Tap on Smart Lock
  4. Enter the current pattern, PIN or password
  5. Tap on Trusted devices
  6. Tap on Add trusted device and follow the instructions on screen

OnePlus Instructions
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