Create a New Contact:

  1. Launch “Contacts
  2. Switch to “All contacts” and tap “+
  3. Select an account for syncing the contact or choose a different storing method
  4. Enter the contact’s name, phone number, and other optional details in the appropriate fields
  5. Tap “Done

Import/Export Contacts:

  1. Open “Contacts
  2. Tap “Menu
  3. Go to “Import/Export” and select to “Import from SIM” “Import from storage” or “Export to storage
  4. Follow the prompts to complete the process

Assign Contacts to Speed Dial:

  1. Tap and hold the home screen
  2. Go to “Widgets
  3. Drag and drop the “Direct Dial” widget over the home screen
  4. At the prompt, select the contact you want to associate with the widget
  5. Optionally, repeat these steps to add more Direct Dial widgets on the home screen for additional contacts

Note: you can also place Direct Dial widgets in folders on the home screen by dragging and dropping them one over another

Delete Contacts:

  1. Open “contacts
  2. Go to “All contacts
  3. Select the desired contact
  4. Tap “Edit” > “Menu
  5. Press “Delete” > “OK

Create a Caller Group Using a Contact:

  1. Launch “Contacts
  2. Switch to “All contacts” if necessary
  3. Select the desired contact and tap “more Fields
  4. Tap “Create new group” and enter the group’s name
  5. Tap “OK

Assign Contacts to an Existing Caller Group:

  1. Open “Contacts
  2. Switch to “All contacts” and select the desired contact
  3. Tap “Edit” > “More Fields” and select the desired caller group
  4. Tap “OK

See More: OnePlus 6: Manage Contacts, Caller Groups, and the Call Log