Can I send iMessage with eSIM?

Of course, you can send iMessage using eSIM. Here's how to set it up:

• Go to 「Settings」→「APP」→「Messages」and make sure 「iMessage」is turned on.
• Tap 「Send & Receive」, uncheck your primary phone number, and make sure your Apple ID email address is checked.

This way, you can send and receive iMessage using only your data connection.

To resume using your primary number for iMessage:

• Go to 「Settings」→「APP」→「Messages」→「Send & Receive」→ check your primary phone number, and make sure your Apple ID email address is also checked.

This way, you can send and receive iMessage using both your primary number and data connection.