Convert SIM to eSIM: the button exists, but your carrier decides

Can you convert SIM to eSIM yourself?

Often, yes: iPhone, Samsung Galaxy and Google Pixel all have a Convert to eSIM button that will convert a SIM to eSIM on the same phone, keeping your number. The catch is in the small print on all three makers' pages. It only works if your carrier supports it.

That makes this a home-carrier feature. You're turning your own network's plastic card into a digital profile, for the same number and the same contract. It has nothing to do with buying a travel eSIM, and you don't need to do it before a trip. More on that below.

We read Apple's, Samsung's and Google's support pages on 9 November 2026. We haven't run a conversion ourselves, so the steps here are the makers' own.

How to convert SIM to eSIM on iPhone

Apple's iPhone User Guide gives the route:

1. Open Settings and tap Cellular, then Set Up Cellular or Add eSIM.
2. Choose the phone number that uses the physical SIM.
3. Tap Convert to eSIM and follow the instructions.

Apple's note is blunt: after you convert, your physical SIM no longer works. It also limits the option to a supported iPhone model and a carrier that supports it. Apple doesn't say what to do if the button is missing, beyond the general advice to contact your carrier, so that's the next step. Our iPhone eSIM guide lists which models have eSIM at all.

Converting on a Samsung Galaxy

Samsung's version is three taps deep. Settings, Connections, SIM manager, select the SIM card, then Convert to eSIM. Samsung says your information moves from the physical SIM to the eSIM.

What it doesn't promise is that your carrier is ready. Samsung warns that some carriers don't yet support eSIM on Galaxy devices, and that support varies by country. Check your model on our eSIM compatible phones list, or in our Samsung and Pixel guide.

Converting on a Google Pixel

Google sets the tightest conditions of the three. You need:

• a Pixel 7 or later, Fold models included;
• a carrier that offers eSIM for Pixel in your country;
• a Wi-Fi connection.

Then: Settings, Network & internet, SIMs, select the SIM, scroll down, tap Convert to eSIM.

Google says the physical SIM stops working once converted, and that you can throw it away once you've checked the eSIM works. Wait until you have. If you later need a physical SIM again, Google says the carrier has to reissue one.

Is going from SIM to eSIM worth it?

For most people it's a mild yes, with one real cost.

The case for: Google describes eSIMs as more secure and less damage-prone than a plastic card, which is fair. There's no tray to lose, no card to bend, nothing for a thief to pop out and put in another phone. And on a Pixel 7 or later, which can hold two eSIM profiles at once, moving your home line off the card leaves the tray free.

The case against is about flexibility. A physical SIM moves between phones with a pin and ten seconds. An eSIM moves through a transfer menu that, as all three makers keep saying, depends on your carrier. Break your phone abroad and slot a plastic SIM into a spare handset? Easy. Do the same with an eSIM and you're on the phone to your carrier. Google is explicit that getting a physical SIM back means the carrier reissuing one.

If you keep a spare phone for emergencies, think twice. If you don't, convert.

Which carriers let you transfer SIM to eSIM?

Nobody publishes one complete list. The nearest thing is Google's directory of carriers that support eSIM Transfer on Pixel, a page that also mentions converting a physical SIM. In the United States it names AT&T, FirstNet, Spectrum Mobile, T-Mobile, UScellular, Verizon Wireless and Xfinity Mobile. In the UK, EE and O2. For Italy, as we read it: no carrier supported at this time.

That list is about Pixel. An iPhone or Galaxy on the same network may behave differently, and your carrier's own help pages are the final word.

People also use "transfer SIM to eSIM" for something else: moving a number onto a new phone. That's a different job. Apple calls it eSIM Quick Transfer, which needs both iPhones on iOS 18.4 or later. Google calls it Transfer SIM from another device. Samsung calls it Transfer SIM from another phone. All three are covered in our eSIM transfer guide.

Converting your SIM is not how you get a travel eSIM

This trips people up. A travel eSIM from Airalo, Holafly, Nomad, Saily or eSIMCard is a new, separate profile you buy and add next to your home line. You install it by QR code or the seller's app, as in our eSIM activation guide. Nothing gets converted.

And you don't have to convert your home SIM to make room. Google says a Pixel 3a or later runs one physical SIM and one eSIM together. Plenty of iPhones and Galaxies outside the US do the same: home SIM in the tray, travel eSIM alongside.

So when does converting help a traveller? Rarely. On a phone that can hold two eSIMs, it frees the tray. Otherwise it changes little.

Our view: if you want to convert, do it at home, on Wi-Fi, with days to spare. Not the night before a flight. The old card dies the moment the eSIM activates, and if something stalls you'll want your carrier's shop or helpline within reach, not an airport lounge eight time zones away. New to all this? Start with what an eSIM is.