Moving your eSIM to a new phone
An eSIM isn't a card you can pull out and slot into another phone: it's a digital profile. Moving it to a new phone depends on your system, your carrier, and whether the old phone is still turned on.
In short: between two iPhones, Apple offers a direct transfer if your carrier supports it. From iPhone to Android, Apple already has an official route too. Between two Android phones, it still largely depends on your carrier today. If the old phone won't turn on, none of these routes work: you'll need to call your carrier.
What happens
When setting up a new phone, your eSIM doesn't just appear: it has to be activated on the new device, and that can happen in several ways depending on the manufacturer. Between two iPhones with the latest iOS versions, Apple offers a quick transfer that uses Bluetooth and Wi-Fi to detect the previous iPhone during the new one's setup, without going through the carrier, although not every carrier supports it. Apple also already offers an official route to move an eSIM (and other data) from an iPhone or iPad to an Android device. On Android, moving an eSIM to another Android still mostly depends on the app or QR code your carrier provides: there isn't yet a native method as widespread across every manufacturer.
When none of these routes is available, the usual fallback still works: your carrier can activate a new eSIM (or a physical SIM) for the same number on the new phone.
Why it happens
Because an eSIM isn't a physical object: it's encrypted information that lives on a chip inside the phone itself, tied to that specific device. Moving it from one phone to another requires someone to authorize that change: the phone's manufacturer (with a direct transfer) or your carrier (with a new profile for the same number). With a physical SIM, pulling it out and inserting it elsewhere was enough; with an eSIM, that physical step is always replaced by someone's digital authorization.
This has a security upside: no one can "pull out" your eSIM by removing a card, as they could with a physical one. But it also means you can't move it yourself without going through that same authorization process, however much of a hurry you're in.
Who it hits hardest
People who buy a new phone assuming the eSIM "moves itself" like a physical SIM and discover, right at the start of setup, that they need wifi, the old phone nearby, or to call their carrier directly. And people with several eSIMs on the same phone (a personal and a work line, or a travel one for data), because each transfers or activates separately: migrating the main number doesn't automatically move the rest.
What to check before you switch
- Do you know if your carrier supports a direct transfer between the two phones you're going to use?
- Do you have your carrier's app or phone number handy in case you need to activate the eSIM manually?
- Will you have both phones on and nearby during the switch, or is one of them already not working?
- Do you know how many active eSIMs you have on the old phone (personal, work, travel)?
If it already happened to you
If the old phone is broken or won't turn on and you can't generate the transfer from it, call your carrier: they can activate a new eSIM (or physical SIM) for the same number on the new phone without needing the previous device. If you also suspect someone else has tried to move your number without your permission (SIM swapping), say so explicitly when you call: it's a different process, and the carrier has to treat it as a security incident, not a simple device change.
While you sort out the activation, it's normal to be without a line for a few hours: let anyone who needs to reach you know another way to do it (email, another messaging app) during that time, if you can.
Official sources: Apple: set up eSIM on your iPhone · Apple: transfer an eSIM to an Android device