What happens when you move an eSIM to another phone

An eSIM is a digital SIM card stored on your phone's chip rather than a physical card you can hold. When you move to a new phone, you do not mail anything or wait for a replacement to arrive — you read your eSIM profile onto the new device using your carrier's app or a QR code.

The process differs slightly depending on whether your new phone is the same brand as your old one, whether you are switching carriers, and which carrier you use. Most carriers let you move an eSIM yourself without calling customer service, though some require a brief verification step. The whole transfer usually takes 15 minutes to an hour.

Your old phone will lose the eSIM once the transfer completes, so you cannot use both devices on the same number at the same time. If you want to keep your old phone active as a backup, you will need a separate phone plan for it.

Key Takeaways

  • You read your eSIM to a new phone using your carrier's app, a QR code, or manual entry — not by swapping a physical card.
  • The transfer removes the eSIM from your old phone, so both devices cannot use the same number simultaneously.
  • Most carriers let you start the transfer yourself, but some require a brief call or chat to confirm your identity before releasing the eSIM.
  • If your new phone is a different brand or operating system, the steps change slightly but the outcome is the same.
  • You need an internet connection (WiFi or cellular) on your new phone to complete the read.

Transfer an eSIM between phones on the same carrier

If you are staying with the same carrier and moving to a new phone, start by powering on your new device and connecting it to WiFi. Open your carrier's mobile app — this is where most carriers let you manage your eSIM without calling.

Look for a menu option labeled "Manage eSIM," "Transfer eSIM," "Switch Devices," or "set up eSIM." The exact wording varies by carrier. Tap it and follow the prompts, which typically ask you to confirm your phone number and verify your identity with a code sent to your email or phone number. Some carriers ask you to enter the last four digits of your Social Security number or answer security questions instead.

Once verified, the app will show you options to transfer your eSIM. Select your new phone model from the list if prompted. The carrier will then send a confirmation code or QR code to your screen. If you see a QR code, use your new phone's camera to scan it — this downloads your eSIM profile automatically. If you receive a confirmation code instead, enter it into your new phone's settings under Cellular or Mobile Network, then follow the prompts to read the profile.

Wait for the read to finish. You should see a message confirming the eSIM is active on your new phone. Your old phone will show "No Service" or "No SIM" once the transfer is complete. Restart your new phone if you do not see cellular service when ready.

Transfer an eSIM when switching to a different carrier

If you are moving to a new carrier, you cannot transfer your existing eSIM — you need a new one from the new carrier. Contact your new carrier and request an eSIM instead of a physical SIM card. Many carriers now offer eSIM as the default option.

The new carrier will send you a QR code via email, text, or through their app. Power on your new phone, connect to WiFi, and go to Settings. Navigate to Cellular, Mobile Network, or SIM Settings (the exact path depends on your phone's operating system). Look for an option to "Add Cellular Plan," "Add eSIM," or "Scan QR Code." Use your phone's camera to scan the QR code from your carrier.

Your new phone will read the eSIM profile and ask you to confirm. Once confirmed, your new carrier's service should set up within a few minutes. You can then contact your old carrier to cancel your previous plan if you wish.

Transfer an eSIM between iPhones

If both your old and new phones are iPhones, Apple offers a streamlined transfer process. During the initial setup of your new iPhone, you will see a screen asking whether you want to transfer data from your old device. Choose "Transfer from iPhone" and hold the phones close together.

Your new iPhone will detect your old iPhone and ask whether you want to transfer your eSIM. Tap "Transfer eSIM" when prompted. Your old iPhone will remove the eSIM, and your new iPhone will read it automatically. This process requires both phones to be powered on and within a few inches of each other.

If you have already finished setting up your new iPhone, you can still transfer the eSIM manually. Open Settings on your new iPhone, tap Cellular, then tap "Add Cellular Plan." Tap "Transfer from Another iPhone" and follow the prompts. You will need to unlock your old iPhone when prompted so the new one can read the eSIM information.

Transfer an eSIM between Android phones

Android phones do not have a built-in transfer feature like iPhones do, so you will need to use your carrier's app or a QR code. Power on your new Android phone and connect to WiFi. Open your carrier's app and look for "Manage eSIM," "Switch Devices," or "Transfer eSIM."

Follow your carrier's prompts to verify your identity. Once verified, you will receive either a QR code or a confirmation code. If you see a QR code, open your new phone's camera and scan it. If you receive a code, go to Settings on your new phone, tap Network & Internet or Connections, then tap Mobile Network or SIM Manager. Select "Add eSIM" or "Scan QR Code" and enter the code or scan the QR code as instructed.

Wait for the eSIM profile to read. You should see a confirmation message once the transfer is complete. Restart your new phone if cellular service does not appear when ready.

What to do if the transfer fails or gets stuck

If your new phone does not recognize the QR code or confirmation code, make sure you are connected to WiFi and that your internet connection is stable. Try restarting your new phone and scanning or entering the code again.

If the read starts but does not finish, check that your new phone's storage has at least 100 MB of free space. Some phones require this minimum to read an eSIM profile. Delete unnecessary apps or photos if needed, then try again.

If your old phone still shows service after you have completed the transfer, restart it. The eSIM should disappear from the old device once it restarts. If it does not, contact your carrier's customer service — they can remotely remove the eSIM from your old phone to prevent any issues.

If your new phone shows "Invalid QR Code" or "Cannot read eSIM," the code may have expired. Request a new one from your carrier's app or customer service. Some carriers limit how long a QR code remains valid, typically 24 to 48 hours.

Moving an eSIM to a phone with a different operating system

If you are switching from iPhone to Android or vice versa, the eSIM transfer process is the same as moving between phones on the same operating system — you use your carrier's app or a QR code. The main difference is that you lose any iPhone-specific or Android-specific features tied to your old phone, but your cellular service and phone number transfer without any issues.

Start the transfer on your new phone using your carrier's app. Follow the same steps you would use if both phones ran the same operating system. The carrier does not care which brand of phone you are using; they only need to verify your identity and confirm which device should receive the eSIM.

Frequently Asked Questions

Can I use my old phone while the eSIM is transferring?

No. Once the transfer begins, your old phone will lose cellular service. The eSIM can only be active on one device at a time. If you need to keep your old phone active, you will need a separate phone plan for it, which requires a new eSIM or physical SIM card from a carrier.

What if I do not have WiFi on my new phone?

You need an internet connection to read the eSIM profile. If you do not have WiFi, use a mobile hotspot from another device, or visit a location with public WiFi such as a coffee shop or library. You cannot use your old phone's cellular connection because the eSIM is being transferred away from it.

Do I lose my phone number when I transfer an eSIM?

No. Your phone number stays the same when you transfer your eSIM to a new phone. The eSIM is just the digital container that holds your carrier's information and your phone number. Moving it to a new device does not change your number.

How long does an eSIM transfer take?

The entire process usually takes 15 minutes to an hour, depending on your carrier and internet speed. The read itself typically finishes in a few minutes, but verification steps and carrier processing can add time. Some carriers set up the eSIM when ready; others take up to a few hours.

Can I transfer an eSIM if I forgot my carrier password?

Most carriers will let you reset your password through their app or website before you start the transfer. If you cannot reset it, contact your carrier's customer service. They can verify your identity using your phone number, email, or account details and then help you transfer the eSIM manually.