Upgrading to a new iPhone 16 is exciting, but the eSIM transfer can feel like the one detail that might slow you down. If you are moving from an older iPhone, switching carriers, or setting up a new device, the good news is that Apple has made this process much easier than before.
In most cases, you can transfer your eSIM during iPhone setup in just a few taps. If that does not happen automatically, you can still move your mobile plan manually through Settings. This guide walks you through the fastest methods, what to expect on screen, and what to do if your carrier uses a different process. By the end, your new iPhone 16 should be connected and ready to call, text, and use cellular data without the usual headache.
Quick Summary
If you just want the short version, here it is:
- Turn on your new iPhone 16 and start setup.
- Choose the option to transfer your phone number or cellular plan from your old iPhone.
- Keep both iPhones nearby, unlocked, and connected to Wi-Fi.
- Follow the on-screen prompts to approve the eSIM transfer.
- If automatic transfer does not appear, go to Settings > Cellular > Add eSIM and use your carrier’s instructions.
Tutorial – How to Transfer eSIM to New iPhone 16 During Setup
This method is the easiest and fastest for most users. It works best when you are moving from one iPhone to another and both devices are nearby.
Step 1: Turn on your new iPhone 16 and begin setup
Power on your iPhone 16 and follow the initial setup screens until you reach the cellular setup step.
You should see prompts asking whether you want to transfer a phone number, set up cellular service, or continue without it. If you do not see the option right away, keep going through setup and check again later in Settings.
Step 2: Keep your old iPhone nearby and unlocked
Place your old iPhone next to the iPhone 16, and make sure both phones are turned on, unlocked, and connected to Wi-Fi.
This matters because Apple often uses a direct device-to-device transfer. If the old iPhone is locked, out of battery, or too far away, the transfer may fail or never appear.
Step 3: Select the option to transfer your cellular plan
On the new iPhone 16, tap the prompt that says something like Transfer From Nearby iPhone, Transfer Cellular Plan, or Use Phone Number From iPhone.
After you tap it, your new iPhone may show a confirmation screen or ask you to verify the transfer on your old device. This is normal. Think of it as handing over a digital key from one phone to another.
Step 4: Approve the transfer on your old iPhone
Your old iPhone should display a message asking you to confirm the eSIM transfer to the new device.
Tap Transfer or Continue, then follow any verification steps such as Face ID, Touch ID, or your passcode. Once approved, the old iPhone may start losing cellular service as the new one activates.
Step 5: Wait for activation on the iPhone 16
Let the iPhone 16 finish activating the eSIM. This can take a few seconds to a few minutes depending on your carrier.
You should see a status message like Activating, Setting Up Cellular Plan, or your carrier name appearing in the top corner. When it works, the signal bars should appear, and your phone number should be active.
Step 6: Test calls, texts, and mobile data
Make a quick test call, send a text, or open a web page using cellular data instead of Wi-Fi.
This confirms that the eSIM transfer is complete. If calls and data work, you are done. If not, move to the alternative methods below.
Alternative Methods and Edge Cases
Not every carrier or phone setup behaves the same way. If the automatic transfer does not show up, try one of these options.
Transfer eSIM manually in Settings
If you skipped cellular setup during installation, open Settings on your iPhone 16, tap Cellular, then tap Add eSIM.
From there, you may see options like:
- Transfer From Nearby iPhone
- Use QR Code
- Use Carrier App
- Enter Details Manually
Choose the option your carrier supports. If your old iPhone still has the plan active, nearby transfer is usually the fastest path.
Use a carrier QR code
Some carriers still issue a QR code for eSIM activation.
To use it:
- Open Settings > Cellular > Add eSIM
- Tap Use QR Code
- Scan the code provided by your carrier
- Follow the prompts to finish activation
This is common when transferring from Android, setting up a new line, or when your carrier does not support direct device transfer.
Use your carrier’s app
Many carriers let you activate or move an eSIM through their own app.
If your carrier supports this, download the app on your iPhone 16, sign in, and look for options such as:
- Transfer SIM
- Activate device
- Replace device
- Manage line
This can be useful if the Apple transfer flow gets stuck or your carrier requires extra verification.
Contact your carrier for a replacement eSIM
If none of the above works, your carrier may need to issue a new eSIM profile.
This is especially common if:
- Your old phone is lost or broken
- Your account was recently changed
- Your carrier blocks automatic transfer
- The eSIM was deleted from the old phone before transfer
In this case, contact support through chat, phone, or store visit and ask for a replacement eSIM for your iPhone 16.
Frequently Asked Questions
Will transferring my eSIM delete anything on my old iPhone?
No, it usually does not delete your apps, photos, or messages. It only moves your cellular plan from the old device to the new one.
Can I use both iPhones with the same eSIM at the same time?
Usually no. Most carriers allow one active device per eSIM line. Once the transfer is complete, the old iPhone typically loses cellular service for that line.
What if I do not see the transfer option during setup?
Go to Settings > Cellular > Add eSIM on your iPhone 16. If the transfer option still does not appear, your carrier may require a QR code or manual activation.
Do I need Wi-Fi to transfer an eSIM?
Yes, Wi-Fi is strongly recommended. The transfer process often needs an internet connection to contact Apple or your carrier’s activation servers.
Can I transfer an eSIM from Android to iPhone 16?
Sometimes, yes, but the method depends on your carrier. You will usually need a QR code, carrier app, or manual activation rather than the nearby iPhone transfer method.
How long does eSIM activation take?
It can take anywhere from a few seconds to several minutes. If it takes much longer, restart the phone and check with your carrier.
Tips
- Keep both phones charged during the transfer. A low battery can interrupt activation at the worst possible moment.
- Make sure Bluetooth is on if you are using the nearby iPhone transfer method.
- Sign out of iMessage and FaceTime on the old phone only if your carrier or Apple Support tells you to. In most cases, you do not need to.
- If you are moving from a physical SIM to eSIM on the iPhone 16, your carrier may need to convert the line first.
- Store your carrier account login and PIN somewhere safe. Some carriers require them during activation.
- After the transfer, check Settings > Cellular to confirm your line is active and set as the default for calls and data if needed.
Troubleshooting
- If the transfer fails, restart both iPhones and try again. A simple reboot often resolves many temporary activation glitches.
- If cellular service is missing after activation, toggle Airplane Mode on for 10 seconds, then turn it off. This forces the phone to reconnect to the network.
- If you see a message saying the eSIM is unavailable, contact your carrier. The line may still be tied to the old device or need to be reissued.
- If the transfer option is missing, update both iPhones to the latest iOS version. Apple often improves eSIM support through software updates.
- If your old phone was erased before the transfer, you may need a new eSIM from your carrier. The original profile is often no longer available for reuse.
- If data works but calls do not, check that your line is enabled under Settings > Cellular and that the iPhone 16 is set to use the correct default line.
Conclusion
Transferring an eSIM to a new iPhone 16 is usually quick, especially if you are moving from another iPhone. In many cases, the setup process handles everything for you with just a few taps.
If automatic transfer does not show up, you still have solid fallback options through Settings, QR code activation, or your carrier’s app. Once the eSIM is active, your new iPhone 16 should be ready for calls, texts, and data with no real downtime.

Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.