After adding the eSIM to a device, can I switch to another phone for use?

Yes, but the following conditions must be met:

1. The new device supports eSIM functionality.
2. First delete the eSIM from the original device.
3. Reinstall the eSIM on the new device via the order QR code or activation code.
4. Re-activation is required after switching devices, and the remaining data and validity period of the package will not be affected.