Providing your Fairphone device is newer or the same as the FP4 Fairphone, your phone should be compatible with an eSIM.
If you would like to check this, you can do so by following these steps:
- Open the Settings app on your Fairphone device.
Scroll down to the bottom of the Settings menu and tap on "About phone".
Look for the "Model number" or "Device model" section.
The model number of your Fairphone should be listed in this section.