How to delete the SMS content received by Apple Watch?

Glad to answer for you!

1. First, please light up the Apple Watch screen and press the "Digital Crown" button on the right to return to the home screen.

2. Next, find the "WeChat" icon on the home screen and click Open.

3. After opening WeChat, please click the "Message" icon to enter the message list of your friends.

4. Next, please click on the friend conversation you want to clear on Apple Watch.

5. After entering the interface of talking with friends, please press the screen hard to activate the pressure sensing hidden option.

6. Then you can see that there is a "delete conversation" option. Click it to delete the conversation with this friend from Apple Watch.

However, it is worth noting that the message conversation displayed in Apple Watch was only deleted here. If you want to completely delete the content of the conversation message, please operate on the iPhone.