How to Transfer an eSIM to a New iPhone (iPhone Duo Included)

Last updated: October 20, 2026. By Veer. Steps checked October 20, 2026 against Apple’s Set up eSIM on iPhone, Transfer your eSIM from Android to iPhone, carrier eSIM support list, If you can’t set up an eSIM and Set up iPhone Handoff pages, plus support pages from AT&T, Verizon, T-Mobile, EE, O2 and Three. This is a researched guide built from official documentation; we haven’t run these transfers on every carrier ourselves.

How do you transfer an eSIM to a new iPhone?

Use eSIM Quick Transfer during setup: keep both iPhones close together, unlocked and on the same Apple Account, then tap Transfer when the new iPhone asks about your phone number. Your old line switches off as the new one activates. Most people never need to call their carrier.

Before you start, check four things that Apple lists as requirements on its eSIM setup page:

• Both iPhones are signed in to the same Apple Account.
• Your old iPhone is unlocked with its passcode.
• Both phones are near each other with Bluetooth on.
• Both are on iOS 18.4 or later.

Then follow the prompts:

1. Turn on the new iPhone and connect it to Wi-Fi.
2. When you reach Set Up Cellular (or a screen asking to transfer your phone number), pick the number from your old iPhone.
3. On the old iPhone, tap Transfer, or type in the verification code the new iPhone shows.
4. Wait for the plan to activate. Apple says the old SIM deactivates once the new plan is live.
5. If a banner says Finish Setting Up Your Carrier’s Cellular Plan, tap it. Your carrier’s web page will finish the job.

Since iOS 26, you can also move more than one number at once, which helps if you run a personal line and a work line in Dual SIM. A physical SIM can come across too: Quick Transfer converts it into an eSIM on the new phone if your carrier allows that.

Already skipped that step during setup?

You can do it later from Settings, and the steps are nearly the same. On the new iPhone, open Settings > Cellular (called Mobile Service on UK iPhones), tap Set Up Cellular or Add eSIM, and choose the plan to transfer. If no numbers appear, tap Transfer From Nearby iPhone, then confirm on the old phone.

Which US and UK carriers support eSIM Quick Transfer?

In the US, the big three (AT&T, T-Mobile and Verizon) all support it, along with several smaller carriers. In the UK, 3, EE, O2, Sky Mobile and Vodafone do. If your carrier isn’t listed, you can still get an eSIM; you just activate it with a QR code, a carrier app or a call instead.

This table comes from Apple’s carrier support list (published September 15, 2026) and its Android-to-iPhone page (September 17, 2026).

“Not listed” means Apple’s page doesn’t include that carrier for that method, so plan to use the carrier’s own route. O2 states on its eSIM help page (last updated August 26, 2026) that it doesn’t yet support moving an eSIM between Android and iPhone.

Can you transfer an eSIM from Android to iPhone?

Yes, if your carrier is on Apple’s list and your Android phone runs Android 16 or later. The iPhone shows a QR code, you scan it with the Android phone, and you pick the number to move. In the UK only EE is on that list for now; in the US it covers AT&T, Cricket, FirstNet, T-Mobile, Verizon and Xfinity Mobile.

Apple’s Android-to-iPhone guide needs an iPhone 11 or later on iOS 26 or later, with both phones on Wi-Fi and Bluetooth. After setup, the steps are:

1. On the iPhone, open Settings, tap Set Up Cellular, then Transfer From Android. (If the iPhone already has a SIM, go to Cellular > Add eSIM > Transfer From Android.)
2. Scan the QR code on the iPhone with the Android phone’s camera.
3. On Android, choose the number and tap Transfer.
4. Tap Done on the iPhone, then make a test call.

Can’t scan the code? Under the QR code, tap Other Options. On the Android phone, go to Settings > Google services > All services > Pair with iPhone or iPad > Transfer eSIM and enter the session ID and pairing code from the iPhone. The Android SIM switches off once the transfer finishes.

If your carrier isn’t supported, contact them. Apple says they’ll send the eSIM by carrier activation or a QR code.

How do you transfer an eSIM without your old phone?

You can’t use Quick Transfer without the old phone, because it has to approve the move. Instead, ask your carrier for a replacement eSIM, usually through its app on the new iPhone over Wi-Fi. If the old phone was lost or stolen, call your carrier first so it can block the line.

Here’s what each major carrier documents:

Those account locks exist for a good reason. Criminals use SIM swaps to steal accounts that rely on text-message codes, which is why we suggest moving off SMS where you can in our guide to whether SMS 2FA is safe. Turn the lock back on once your new iPhone works.

To save time on the phone with your carrier, Apple suggests having your phone number, account PIN or password, and the new iPhone’s IMEI and EID ready. Both are in Settings > General > About.

What’s different with the iPhone Duo?

The iPhone Duo has no SIM tray anywhere in the world, so your number has to arrive as an eSIM. Quick Transfer works the same way, but there’s no “just move the plastic card” fallback, so sort out any carrier account locks before delivery day.

Apple’s iPhone Duo specs list Dual eSIM, with two active eSIMs and room to store eight or more, and say it “does not support a physical SIM.” Pre-orders opened October 16, and Apple’s newsroom announcement puts first deliveries on Friday, October 23 for customers in more than 70 countries and regions, including the US and UK, with 28 more following on October 30. The Duo ships on iOS 27.1, a version made only for this phone (we explain why in our iOS 27.2 release date guide), which easily meets the iOS 18.4 minimum for Quick Transfer.

If you’re still deciding whether to buy one, our iPhone Duo FAQ covers the crease, Pencil support and price.

Keeping your old iPhone too? Look at iPhone Handoff

iPhone Handoff, new in iOS 27, keeps one number on two iPhones and moves it to whichever one you unlock. It suits people who want a Duo for some days and an iPhone 18 Pro for others. Only one phone is active at a time, and it costs extra.

According to Apple’s Handoff setup page (published October 19, 2026), calls, voicemail, messages and Find My location follow the phone you unlock. To set it up, choose Use Number on This iPhone and Another on the Set Up Cellular screen. Both phones need iOS 27, Wi-Fi, the same Apple Account and Messages in iCloud.

One catch: deleting the eSIM doesn’t cancel Handoff. Apple says you have to ask your carrier to turn it off, or the charges can carry on.

Why is my eSIM not transferring?

Most failed transfers come down to a missing requirement: an old iOS version, Bluetooth off, different Apple Accounts, an account lock at the carrier, or a carrier that doesn’t support Quick Transfer. Check those first, then work through Apple’s fixes below.

Apple’s eSIM troubleshooting page suggests this order, checking the status bar for your carrier after each step:

1. Turn Airplane Mode on and off.
2. In Settings > Cellular, turn the line off and on again.
3. Restart the iPhone.
4. Check for a carrier settings update in Settings > General > About (tap the version number next to Carrier).
5. Update both iPhones to the latest iOS they support.
6. Contact your carrier with the error message, your account PIN and the new iPhone’s IMEI and EID.

Three adds a useful tip on its eSIM help page: connect to proper Wi-Fi rather than a personal hotspot, which can cause issues. And remember that once the new iPhone activates, the old one loses service, so don’t wipe the old phone until you’ve made a test call on the new one.

Verdict: which method should you use?

If your old iPhone works, use Quick Transfer during setup; it’s the fastest route and needs no call to your carrier. Coming from Android, try the iOS 26 QR-code transfer if your carrier is on Apple’s list, and otherwise use the carrier’s app. If your old phone is gone, go straight to the carrier app or call them, after turning off SIM Protection or Account Lock.

iPhone Duo buyers should do one thing before Friday: log in to your carrier account and turn off any SIM lock, so your number moves over on the first try.

FAQ

Does an eSIM transfer automatically to a new iPhone?

Not entirely. Quick Transfer offers to move your number during setup, but you have to approve it on the old iPhone by tapping Transfer or entering a code. Without the old phone, your carrier has to issue a new eSIM.

Do I need Wi-Fi to transfer my eSIM?

Apple says the new iPhone should be on Wi-Fi or a hotspot, though in some countries eSIM-only iPhones can activate without it. Three advises against using a personal hotspot for transfers. For Android-to-iPhone transfers, both phones must be on Wi-Fi with Bluetooth on.

Can I move my eSIM from Android to iPhone without calling my carrier?

Yes, on supported carriers. You need iOS 26 or later on an iPhone 11 or newer and Android 16 or later. US carriers include AT&T, T-Mobile, Verizon, Cricket, FirstNet and Xfinity Mobile, and in the UK only EE is supported.

What happens to my old iPhone after the transfer?

Its cellular plan deactivates as soon as the new iPhone’s plan activates. Wi-Fi, apps and data still work, so you can finish moving data before you reset it.

How do I transfer my eSIM if my old phone is broken?

Use your carrier’s replacement route: the My Verizon app, AT&T’s Bring your own device page, T-Mobile’s T-Life app, the EE or Three app, or O2 support. Turn off SIM Protection or Wireless Account Lock first if you use them.

Does iPhone Duo have a SIM card slot?

No. Apple says iPhone Duo is activated with an eSIM and does not support a physical SIM anywhere in the world. It supports two active eSIMs and can store eight or more.

Sources: Apple Support pages 118669 (September 17, 2026), 123878 (September 17, 2026), 101569 (September 15, 2026), 102478 (April 23, 2026) and 127274 (October 19, 2026); Apple iPhone Duo specs; Verizon newsroom (October 16, 2026); carrier help pages linked above. All checked October 20, 2026.