Table of contents
- Which kind of transfer are you trying to make?
- A few numbers that actually help
- Before you start: protect your way back in
- Method 1: use eSIM Quick Transfer
- Method 2: have the carrier activate a replacement
- Can you transfer a travel eSIM with data left?
- If the old iPhone is missing or will not turn on
- Run these checks before erasing the old phone
- Fix a stalled transfer without making it worse
- Only then prepare the old phone for sale or trade-in
- Frequently asked questions
To move an eSIM to another iPhone, first check whether its carrier supports eSIM Quick Transfer. If it does, use Add eSIM on the new phone and approve the move on the old one. Otherwise, ask the provider for its replacement or activation process. A travel eSIM may be tied to the original device and may not transfer at all.
Keep the old iPhone until the new one passes your connection checks. Moving photos, signing into an account and seeing a familiar wallpaper do not prove that your mobile service moved too. This guide takes you from choosing the correct method to checking calls, messages and data before you trade in the old handset.
Which kind of transfer are you trying to make?
| Your situation | Appropriate next step | Important limit |
|---|---|---|
| Home mobile line with Quick Transfer support | Start the nearby-iPhone transfer | The carrier and both devices must qualify |
| Home line without that support | Use the carrier’s approved replacement method | You may need account verification |
| Travel-data package already installed | Check its device-transfer policy first | Remaining data does not establish transfer rights |
| Old phone lost, broken or unavailable | Contact the carrier for recovery or reissue | You cannot approve a nearby transfer on an inaccessible device |
| Moving apps and photos only | Use the normal device migration process | Cellular service still needs its own confirmation |
Do not mix up moving an existing line, switching mobile carriers and installing a newly purchased holiday package. They can all end with an eSIM on the new phone, but they involve different permissions and account changes. If you simply bought another travel plan, use our eSIM installation guide instead.
A few numbers that actually help
| Useful number | What it means for the move |
|---|---|
| iOS 18.4 or later | The current Quick Transfer preparation requirements specify this on both iPhones |
| iOS 26 | Supports transferring more than one number during setup where the carrier permits it |
| 8 or more stored eSIMs | Storage is not the same as having every line active |
| 2 active eSIMs on supported models | Check the exact new model and region before planning two digital lines |
Use the current transfer requirements and supported travel-eSIM combinations for your devices. These are practical capability figures, not a transfer-success rate or a promise that a particular holiday package can move. A newer handset cannot override the provider’s policy.
Before you start: protect your way back in
- Back up personal data. Check that important photos, contacts and documents are recoverable before changing phones.
- Prepare both handsets. Charge them, update their software and keep them together on a dependable internet connection.
- Check account access. Make sure you can sign in to the carrier account and use its approved identity checks.
- Identify each line. Write down which is your home number, work number and travel-data package.
- Save travel essentials. Keep hotel details, tickets and support contact information available without mobile service.
Choose a quiet period, not the minutes before boarding or before a payment that requires a text code. If several people share a carrier account, check who is authorised to make the change. A family organiser’s approval may matter more than who physically holds the phone.
If you are moving a work line, ask your administrator before starting. Do not remove management profiles or account protections to force the transfer. For example, carrier activation procedures can include account-level checks that are not visible in the iPhone’s SIM menu.
Method 1: use eSIM Quick Transfer
For this route, both phones need the same Apple Account, Bluetooth enabled and the supported software. Keep the old phone unlocked and nearby. Confirm that the carrier supports Quick Transfer for this line; eSIM support alone does not establish that.
- On the new iPhone, open Settings → Cellular or Mobile Data → Add eSIM.
- Choose the number to move, or select Transfer From Nearby iPhone if the number list is absent.
- Approve the request on the old phone. Enter the displayed verification code there if asked.
- Allow activation to finish on the new handset. Complete any carrier hand-off shown on screen.
- Check that the intended line appears on the new phone before moving to the tests below.
The same carrier-supported move can be offered during initial iPhone setup. Once the transferred service activates on the new phone, the previous SIM stops serving that line. Keep both phones available during the handover; do not interpret the old line going inactive as a reason to delete everything.
Quick Start and Quick Transfer are not the same job
Quick Start helps migrate the device’s information; eSIM Quick Transfer moves supported cellular service. They can appear during the same setup session, which makes the distinction easy to miss. Keep devices together and powered while the data migration runs, and verify the mobile line separately afterwards.
Imagine the new phone has your photos and airline app, but it only loads your booking over Wi-Fi. The information transfer may be fine while cellular activation is unfinished. Check the SIM list and carrier status before repeating the entire phone migration. One successful part does not prove that every part succeeded.
Method 2: have the carrier activate a replacement
If the nearby-transfer option is unavailable or rejected, use the carrier’s official account, app, store or support channel. Ask to move the existing line to the new device, keeping the number where applicable. Do not accidentally order an additional subscription when what you need is a replacement eSIM.
Have the account holder’s details and the new device information ready. The carrier may request an IMEI or EID through its secure process. Keep these identifiers, activation QR codes and verification messages out of public screenshots. Never give a code to an unsolicited caller claiming to complete the move.
- Confirm which existing line you want to replace and whether the change has a fee.
- Complete the carrier’s legitimate account and identity checks.
- Use the activation notification, app, fresh QR code or other method it provides for this handset.
- Ask when the previous SIM will stop working and what to do if the replacement does not activate.
- Keep the support reference until calls, messages and data have been checked.
A QR code is an activation credential, not a portable copy of your service. Do not assume that an old installation email can activate a second device. If a replacement is issued, distinguish it clearly from the original so you do not repeatedly scan the wrong one.
Can you transfer a travel eSIM with data left?
Unused data does not guarantee that the profile can move. Check the exact product before upgrading the phone during a trip. Some travel eSIMs are single-device products; others may have a provider-assisted replacement process. Treat the answer as a purchase condition, not an iPhone feature.
For example, an installed Airalo eSIM cannot move to another device under its device-transfer policy. That restriction is specific to that product arrangement; it is not proof that every eSIM from every provider behaves identically.
If your old phone still works, you might finish the package on it or share its connection if tethering is permitted. If it does not, ask what recovery is possible before buying again. Do not promise yourself a transferred balance, restarted validity or refund without explicit confirmation.
For instance, if you have three days of a trip left, compare a suitable replacement for those days rather than automatically repurchasing the original long package. Check your remaining route through destination search. Keep any replacement purchase separate from the support request about the old package.
If the old iPhone is missing or will not turn on
Skip the nearby-device method and contact the carrier. Explain whether the phone is lost, damaged or simply no longer available. Ask for account recovery and replacement service on the new handset. The verification route may be different if the old line was your usual way to receive sign-in codes.
A lost phone also needs its own security response; transferring service is not a substitute for protecting the device and accounts. Use legitimate account recovery and the carrier’s lost-device process. Avoid anyone offering to bypass ownership checks or copy an eSIM outside the provider’s authorised process.
Run these checks before erasing the old phone
| Test | What a useful result looks like |
|---|---|
| Line identity | The intended number or data profile is enabled on the new handset |
| Mobile data | A small webpage loads with Wi-Fi off and the correct data line selected |
| Outgoing voice, if included | A normal call connects using the intended number |
| Incoming voice, if included | A trusted contact can reach that number |
| Ordinary SMS, if included | A normal message arrives independently of internet messaging |
| Important accounts | Your approved sign-in and recovery methods remain usable |
A data-only travel plan should not fail your checklist merely because it cannot make a cellular call. Test the services you actually purchased. Equally, a successful iMessage is not proof that ordinary SMS works: check the number selected for Messages and FaceTime separately if needed.
When travelling abroad, agree any call test with the other person and understand roaming charges first. Keep the test small; there is no need to burn a large part of a holiday allowance on a speed test. For two-line settings, follow Dual SIM on iPhone for travelling.
Fix a stalled transfer without making it worse
| What happened | Next check |
|---|---|
| No nearby-transfer option | Carrier support, current software, account and proximity |
| New eSIM appears but has no service | Enabled line, activation status and carrier settings |
| Calls work but data does not | Data-line selection, allowance and destination roaming settings |
| QR code is rejected | Whether it is valid for a replacement on this particular phone |
| Neither phone has the line working | Contact the carrier with the failed-transfer details |
For a stalled activation, the controlled troubleshooting sequence starts with checks such as airplane mode, enabling the line, restarting and checking carrier settings. Try one relevant step at a time. Record the exact error and what changed so support does not have to guess where the process stopped.
Do not repeatedly delete the eSIM, reset the whole phone or submit fresh replacement requests while one is pending. Multiple changes make the state harder to understand. If the carrier has already deactivated the old SIM, ask it to resolve the replacement rather than assuming a phone backup will restore the old service.
Only then prepare the old phone for sale or trade-in
After the new phone is working and personal data is safely transferred, follow the device handover checklist for backup, account sign-out and erasing the old handset. Do not manually delete synced photos or contacts as a shortcut; that can remove them from your other devices too.
Handle the old eSIM as part of that deliberate handover. Deleting an eSIM is different from cancelling its subscription, so check billing separately for any line you no longer need. Finish the service move before handing the phone to a buyer or posting it for trade-in.
Frequently asked questions
How long does an eSIM transfer take?
There is no reliable universal completion time. Device setup, account verification and carrier activation can take different amounts of time. Start when you have dependable Wi-Fi and no urgent need for the line, then check the actual service before finishing.
Can the same transferred number stay active on both iPhones?
A normal replacement transfer moves the line rather than duplicating it. Separate carrier multi-device products are different arrangements. Ask the carrier if you need simultaneous service on more than one device.
Does an iCloud restore guarantee that my eSIM transfers?
No. Restoring personal data does not establish that the carrier activated service on the new device. Check the line and test its purchased services separately.
Should I delete the old eSIM before starting?
No. Keep the old setup available while using the supported transfer process. Delete or erase it only as part of a confirmed handover or when the carrier explicitly directs you.