Why use the watch, but it is the imessage displayed by SMS?

What you want to ask is why the watch displays short messages.

At present, only when the watch is connected to the mobile phone will the mobile phone receive the SMS at the same time. If you don't need this function, you can turn it off in the settings.

"iMessage is an instant messaging software launched by Apple, which can send text messages, videos and so on. And the security is very high. Different from the SMS/MMS service of operators, users only need the data support of WiFi or cellular data network to complete communication.