Does iphone have SMS receipt function?

SMS is one of the necessary communication tools for every user's mobile phone. At present, the Chinese word count of a short message is 70 (including symbols), while the English word count is 160. If the number exceeds the number of words, it will be charged twice. A prudent consumer will never use SMS in two. IPhone SMS has built-in character counting function, which can be sent back to the sender to confirm that the other party has received the SMS. Setup steps: Go to the main screen, click Setup, and click Info to see the number of words, which means the number of words in traditional Chinese. Send the read receipt and recite the receipt in traditional Chinese. Turn on character counting and send a read receipt. Now try to type a few informative words, as shown below, which will show the number of characters entered. Note: If you turn on character counting, there is no word count, as shown below. Please log off or restart, and you will see ~