To install and activate an eSIM on your Apple Watch, you need to link it with your iPhone first. Then follow these steps:

Step 1: Access the [Watch] app > select [Cellular] > tap [Set up Cellular]

Step 2: Enter your Personal Information, and then select [Login] > [Accept]

Step 3: Continue by pressing [Accept], then select [Close]

Step 4: Check on your Apple Watch by accessing the Control Center. If you see a green SIM card icon, it means that your eSIM has been successfully installed on your Apple Smart Watch.

How to install eSIM: https://esimone.com/check-device

Check Compatibility: https://esimone.com/check-device

eSIM ONE - One touch to the world