How to determine whether the other party has read the text message?

Take Apple's mobile phone as an example, the determination steps are as follows:

1. Open the information application.

2. Select the contact to view in the conversation list. Find the message you sent in the dialog box.

3. When the other party finishes reading the short message, they will see a small blue checkmark icon, indicating the read status.

4. If the other party doesn't read the short message, you will see a small gray check icon, indicating the status of sent but unread.