Using Your Phone in Europe: eSIM vs. Physical SIM Cards

If you've travelled to Europe before, you've probably bought a physical prepaid SIM at some point - at an airport kiosk, a phone shop, or a supermarket counter. An eSIM does the same basic job, but the process of getting one is different enough that it's worth actually comparing rather than assuming they're interchangeable.

What buying a physical SIM actually involves

You land, find a kiosk or shop that sells them (not always right at arrivals - sometimes it's a level down, or outside security), and queue. Most EU countries require ID registration for a prepaid SIM under local telecom regulation, so you'll need your passport on you, not packed in your case. Activation isn't always instant - some networks take anywhere from a few minutes to a few hours to go live. Then there's the physical swap itself: finding your phone's SIM tray, a pin (or a paperclip) to eject it, and somewhere safe to keep your home SIM so it doesn't end up lost in a jacket pocket for the rest of the trip.

What an eSIM involves instead

The whole process happens before you fly: buy it online, scan a QR code, and the profile installs in a couple of minutes on your home wifi. There's no shop to find, no ID check, and no physical card to lose - it's a second, digital line living alongside your existing SIM, not a replacement for it. Most phones from the last few years support running both at once, so your regular number keeps receiving calls and texts normally while the eSIM handles data. How to install an eSIM covers the exact steps and a quick way to check your specific phone supports it.

Where a physical SIM still makes sense

To be fair to the plastic card: in some countries, a local network's own prepaid SIM can undercut an international eSIM provider on price per gigabyte, especially for a longer stay where you're buying a large local bundle rather than a short-trip travel plan. It's also the only option if your phone is old enough not to support eSIM at all, or if it's locked to a home carrier in a way that blocks a second profile. If your trip is genuinely long-term and single-country, it's worth at least comparing the local price before assuming digital automatically wins.

Where eSIM tends to win

For a multi-day or multi-country trip, the maths usually favours the eSIM once you count the time cost, not just the price per gigabyte: no queue, no ID check, no risk of standing in an unfamiliar shop trying to explain what you want in a language you don't speak. It's also already live before you land, which matters most exactly when you need data most - checking a platform number, finding a taxi rank, or getting online the moment you're through arrivals. And because it runs alongside your existing SIM rather than replacing it, you don't have to give anyone your home number to keep receiving on it.

A quick way to decide

If your phone supports eSIM (check here if you're not sure) and your trip covers more than one country or lasts under a few weeks, an eSIM is very likely the simpler and often cheaper option once you count your own time. If you're settling in one country for months and your phone can't run eSIM, a local physical SIM is still a completely reasonable choice - it's not that one is universally better, it's that they solve slightly different problems.

One euRoam eSIM covers 34 countries (31 on the cheaper euRoam Last Call) on a single plan - see the plans page for pricing, or the full coverage list for exactly which countries and partner networks are included.