What is the sign of Android SMS?

A green bubble and a white envelope. The icon of SMS application is a green bubble and a white envelope. If you can't find the SMS application, try to see a list of all applications, or use the search function of your phone to find SMS. You can also check the SMS notification and SMS storage location in the phone settings. Please note that if you delete messages, they may be permanently deleted and cannot be recovered. Therefore, please manage your SMS carefully to ensure that you don't lose important information.