When you transfer an eSIM to a new phone, you change an activation controlled by the phone, operating system, and carrier together. Use direct transfer only when all three support it. Otherwise, activate the new phone through the carrier, a fresh QR code, the carrier's official app, or assisted support—and keep the old eSIM until the new line has been tested.

Key Takeaways

The data-transfer tool and the eSIM-transfer tool are not necessarily the same process.

iPhone and Pixel menus are platform examples, not universal instructions for every phone or carrier.

Never delete the old eSIM merely because the new phone shows signal bars.

Verify incoming and outgoing calls, SMS, mobile data, voicemail, dual-SIM defaults, and carrier account status first.

For general migration, use the relevant iPhone-to-iPhone, iPhone-to-Android, Android-to-Android, or Android-to-iPhone guide. For broader triage, see the Device and App Guide.

Apple documents the iPhone cellular and eSIM example［1］; Google documents one Pixel SIM-transfer example［2］; and Apple separately documents an eligible Android-to-iPhone direction［3］. None is a universal carrier menu.

Which route should you use to transfer an eSIM to a new phone?

Direction	First path to check	If direct transfer is unavailable
iPhone to iPhone	Apple's setup-time or cellular-settings eSIM transfer, when offered	Carrier activation, QR code, carrier app, or support
Android to Android	The destination maker's documented SIM transfer; Pixel provides one platform example	Carrier activation, new QR code, carrier app, or support
iPhone to Android	A cross-platform option explicitly offered by the destination phone and carrier	Ask the carrier to move or reissue the eSIM
Android to iPhone	Apple's supported setup path on eligible devices and carriers	Carrier activation, QR code, carrier app, or support

The absence of a menu is a stop condition, not a reason to improvise with another model's instructions. Carrier support can also vary by plan type, country, business account, prepaid service, or device lock status.

Prepare before changing service

Confirm that the new phone is unlocked or approved for the carrier and supports the required eSIM bands and plan.
Update both phones if the official transfer instructions require it.
Connect both phones to Wi-Fi and power, and keep the old phone unlocked and nearby.
Sign in to the carrier account and make sure you can receive account-security challenges through another method.
Record the line label, phone number, data line, voice line, and roaming preference for each SIM in a dual-SIM setup.
Back up phone data separately. Moving an eSIM does not copy photos, messages, apps, or authenticator accounts.

Do not publish or share an activation QR code. A carrier may treat it as a one-time credential, and a screenshot can expose service activation to the wrong person.

Transfer from iPhone to iPhone

Apple may offer the eSIM during new-iPhone setup or through cellular settings on supported devices and carriers. Follow the prompts on both phones and approve the transfer on the old iPhone when requested.

If the line is not offered, the carrier may require its own activation flow, a new QR code, an app, or contact with support. Do not reuse an old QR code unless the carrier explicitly says it remains valid.

Transfer from Android to Android

Android menus differ substantially. Google's Pixel instructions show one supported SIM-transfer flow, but they do not define a universal Android menu. Use the destination manufacturer's instructions and verify that your carrier is listed or accepts that method.

If the source phone, destination phone, Android release, or carrier is ineligible, stop the direct flow and request carrier activation. Do not delete the source profile in an attempt to make the destination menu appear.

Move between iPhone and Android

Cross-platform support is narrower and more carrier-dependent. Apple documents an Android-to-iPhone setup path for eligible combinations. The reverse direction may be offered by a particular Android device or carrier, but that capability must be confirmed for the actual pair.

When no direct option appears:

contact the carrier through its official site, app, phone number, or store;
ask it to transfer or reissue the eSIM for the new device;
provide only the account and device identifiers it officially requests; and
activate the new profile while retaining access to the old phone when possible.

What should you test before deleting the old eSIM?

Signal bars are not enough. Test:

an outgoing call and an incoming call;
an outgoing SMS and an incoming SMS;
mobile data with Wi-Fi temporarily off;
voicemail access and notification;
the correct default voice, messaging, and data line in a dual-SIM setup;
personal hotspot only if it is included in your plan; and
carrier account status, plan name, and expected number.

Emergency-calling behavior cannot be safely proved by making a test emergency call. Review the device and carrier's official emergency-service guidance, keep the registered service address current where required, and use the carrier's supported test or confirmation process.

Once all ordinary service checks pass, remove the old eSIM only if the carrier or device flow has not already disabled it.

What if the old phone is lost, broken, or locked?

Direct device approval may be impossible. Contact the carrier and use its identity-verification and account-recovery process. Be ready for additional checks, a replacement eSIM, a store visit, or a waiting period.

Do not pay a third party to “clone” or recover an eSIM, and do not send activation QR codes, account PINs, one-time codes, or identity documents through an unverified channel. If the phone was stolen, also use the platform's lost-device controls and review the carrier account for unauthorized SIM changes.

Summary

The safe route is whichever method the actual phones and carrier jointly support. Preserve the old eSIM, use an official activation path, and treat full call, message, data, voicemail, and dual-SIM testing as the completion gate.

Frequently asked questions

Does an eSIM transfer automatically with my data?

Not always. Device data migration and mobile-service activation are separate contracts. The phone may offer both during setup, but either can require its own steps.

Can I transfer an eSIM without contacting the carrier?

Yes, when the devices, software, plan, region, and carrier support direct transfer. Otherwise, carrier activation is required.

Can I reuse my old eSIM QR code?

Only if the carrier explicitly says it is reusable. Many activation codes are single-use or tied to a particular activation state.

Should I delete the old eSIM first?

No. Keep it until the new line has passed calls, SMS, mobile-data, voicemail, and dual-SIM checks, unless the official transfer flow disables it automatically.

Why does my new phone show signal but calls fail?

The profile may be partly activated, the wrong line may be the default, or carrier provisioning may still be incomplete. Keep the old profile and contact the carrier.

Can an iPhone eSIM move to Android?

Only when the destination device and carrier support that direction. If no official cross-platform option is offered, ask the carrier to reissue or activate the line.

What happens if the old phone is broken?

Use carrier account recovery. Direct approval from the old device may be unavailable, so the carrier may require stronger identity checks or in-store support.

How do I test emergency calling after an eSIM transfer?

Do not place a test call to an emergency number. Review official carrier and device guidance, confirm any registered service address, and use only an approved test process.

eSIM availability and transfer methods vary by device, system version, carrier, plan, account, and region. This guide does not cover buying travel eSIMs or diagnosing general cellular-data faults.

Sources

Sources checked 28 August 2026.

How to Transfer an eSIM to a New Phone