There is no small blue dot option for SMS.

Unsuccessful SMS sending: If the network signal is poor or there are other problems when sending SMS, the SMS may not be sent successfully, and there will be no blue sending prompt at this time.

The method of sending SMS by Xiaomi mobile phone opens the "Information" application on the main screen of the mobile phone. Click the "New Information" button. Enter the mobile phone number or contact name to receive the short message in the "To" field. Enter the content of the short message to be sent in the "Information" column. Click the "Send" button. Wait for the transmission to complete. After the transmission is completed, a prompt of successful transmission will appear.