The following is extracted from: About eSIM on iPhone - Apple Support (IN)
Use eSIM Quick Transfer on iPhone
Some network providers support eSIM Quick Transfer, allowing you to transfer the SIM from your previous iPhone to your new iPhone without needing to contact them. You can also convert your current physical SIM card to an eSIM.
Make sure that you’re signed in with your Apple Account on both devices, or that your previous iPhone is unlocked with the device passcode, nearby with Bluetooth turned on, and using iOS 16 or later. If you don't have access to your current iPhone, contact your network provider to transfer your eSIM.
While you're setting up your iPhone, if you're asked to transfer your SIM, follow the onscreen instructions to transfer your physical SIM or eSIM. If you need to transfer more than one SIM to your new iPhone, transfer your additional SIMs by following the steps below.
Transfer a physical SIM or eSIM on your previous iPhone to an eSIM on your new iPhone after setup
- On your new iPhone, go to Settings > Mobile Data > Add eSIM.
- Choose a mobile data plan to transfer from another iPhone. If you don't see a list of numbers, tap Transfer From Nearby iPhone. This requires both devices to have iOS 16 or later.
- Check for instructions on your previous iPhone to confirm the transfer. To confirm, tap Transfer or, if asked for a verification code, enter the code that's displayed on your new iPhone.
- Wait for the mobile plan to be activated on your new iPhone. Your previous SIM will be deactivated when the mobile plan on your new iPhone is activated.
- If a banner appears on your new iPhone that says Finish Setting Up Your Network Provider's Data Plan, tap it. You will be redirected to your network provider's web page to transfer your eSIM. If you need help, contact your network provider.
