An SMS message is a short text message that does not contain any other attachments, such as photos, and can be sent using the Messages app on the OnePlus smartphone.

After selecting a contact or entering the recipient's phone number, a text can be written and sent by tapping the Send button.

Sent and received messages are stored in a conversation or chats so that they can be viewed clearly.

Android 10 | OxygenOS 10.0
Send SMS message -  Open the  Messages app
Send SMS message -  Choose a  conversation  or tap on  New message
Send SMS message -  Choose a  contact  or type a  phone number
Send SMS message -  Type in a  message
Send SMS message -  Tap on  Send
  1. Open the Messages app
  2. Choose a conversation or tap on New message
  3. Choose a contact or type a phone number
  4. Type in a message
  5. Tap on Send

OnePlus Instructions