For staying connected in Europe, you can choose a physical SIM, rental Wi-Fi, or an eSIM that needs no card swapping. If you are visiting several countries, the same eSIM can keep you connected within its coverage area, so you can skip the hassle of setting up a new connection every time you cross a border. This article covers how to choose a plan for a multi-country trip, setup steps, and points to note to avoid trouble.
- For Europe trips, an eSIM is handy because it needs no physical card or router
- For multi-country trips, check the covered countries and pick a data allowance that fits your length of stay
- Before you buy, check that your device supports eSIM and whether it is SIM-locked
- Add the eSIM with the QR code before departure, and switch lines after arrival following the provider’s instructions
- Many plans are data-only, so check in advance if you need a phone number or SMS
Benefits of Using an eSIM in Europe
Using an eSIM on a Europe trip saves you the hassle of swapping physical SIM cards or carrying a mobile Wi-Fi router.
| Item | Key Point |
|---|---|
| SIM swapping | Lowers the risk of swapping or losing cards |
| Router | No carrying or returning a device |
| Multi-country use | Use the same eSIM across covered countries |
No Need to Swap SIM Cards
An eSIM sets up a data plan on a digital SIM built into your device, so you do not need to take out your physical SIM card. You can keep your Japanese SIM in your phone, which lowers the risk of losing or damaging it while you travel. You also do not need a SIM ejector pin, and you can skip reinserting your card after you return home.
No Router to Carry Around
An eSIM lets your smartphone use data on its own, so you do not need to carry a mobile Wi-Fi router or its charger. You carry less while sightseeing, and you no longer have to watch a separate battery level. Because there is no rental device to pick up or return, departure and return trips are also easier.
Keep Using It as You Travel Between Countries
If you choose a regional plan that covers the countries on your itinerary, you can keep using the same eSIM as you move between them. With a plan that connects automatically to local networks at each destination, you also avoid changing your connection settings in every country.
How to Choose a Europe eSIM
Choosing a service and plan that match your itinerary and how often you use your phone helps you stay connected comfortably during your trip.
| Item | Key Point |
|---|---|
| Coverage area | Check the countries on your itinerary |
| Days and data | Choose to match your stay and usage |
| Japanese support | Check support hours and contact methods |
| Tethering | Check availability and data limits |
Check That Your Destinations Are Covered
Check the list of covered countries to confirm that the regional plan you plan to buy includes every country you will visit. Coverage differs by service and plan, and even within Europe some countries or regions may be excluded. If you are visiting several countries, look at your whole itinerary, including connecting points, and choose a plan that covers every country you plan to use.
Weigh the Number of Days and Data Allowance
Estimate how much data you will need from your length of stay and how you use your phone abroad, then choose between an unlimited plan and a fixed-data plan. The amount you need differs between mainly using maps and messaging, and watching videos, posting online, or joining online meetings. Compare conditions such as the number of days, price, and speed limits, and choose a plan that fits how you will use it.
Choose a Provider with Japanese Support
Choose a provider that you can contact in Japanese, in case of setup errors or connection problems. Abroad, you may have to check your device settings and connection status yourself, so it helps to confirm contact methods and support hours in advance. To make it easier to ask for help across time zones, services with long support hours or chat support are convenient.
Check Whether Tethering Is Available
If you want to share your connection with a laptop or a travel companion’s smartphone, check that your device and the network you will use support tethering. Whether tethering is allowed, and how much data you can share, differs by eSIM provider and plan. If you will also use it for video or large file transfers, check the tethering limits and speed-limit conditions.
Things to Check Before You Buy
Before you go to checkout, check that the smartphone you plan to use supports eSIM.
| Item | Key Point |
|---|---|
| eSIM support | Check your device name and model number |
| SIM lock | Check the unlock status |
Check That Your Device Supports eSIM
Check in advance whether your smartphone supports eSIM, using the manufacturer’s official website or your device settings. Even within the same series, support may differ by model, the country or region of sale, and your carrier. To avoid finding out after purchase that you cannot use it, check your device name and model number as well.
Check That Your Phone Is SIM-Unlocked
If you bought your device from a carrier, check whether it has a SIM lock or is ready to use lines from other carriers. A SIM-locked device may not work with an eSIM from a different provider. If the lock is still on, complete the unlock procedure before you travel, following the method your carrier provides.
How to Set Up an eSIM
Preparing before departure and following the steps in order after you arrive makes it easier to get online right away.
| Step | Key Point |
|---|---|
| Receive QR code | Check and prepare the setup details |
| Add to device | Set up in advance under the usage terms |
| Start data | Switch lines and test the connection |
Receive the QR Code Before Departure
After you buy your eSIM, check that you have received the QR code and setup details from the provider. QR codes are usually sent by email or in an app, so make sure you can open it easily before you travel. Depending on your device and setup method, you may need to display the QR code on another device or print it on paper to scan it.
Add the eSIM to Your Device Before Departure
Following the timing the provider advises, add the eSIM profile to your device on a stable internet connection. The point at which your usage period begins differs by plan, so go through the setup steps and usage terms you receive after purchase. If you add it before departure, you can skip the effort of finding an internet connection to set it up locally.
Turn On Data After You Arrive
Once you arrive in Europe, enable the eSIM line you added and select it as the line for mobile data. Data roaming settings differ by plan, so switch them as the provider instructs. After setup, open a website or a map app to confirm you are connected.
Things to Note When Using an eSIM in Europe
Here are points to check in advance so that you can use your eSIM with confidence.
| Item | Key Point |
|---|---|
| QR code | Check how to scan it and which device will display it |
| Crossing borders | Check your connection after the line switches |
| Phone number and SMS | Check voice call and SMS support |
Check How to Scan the QR Code
If you add the eSIM profile with a QR code, check in advance how to scan it on your device and OS. On some models, you can press and hold the QR code shown in an email or browser to add the eSIM directly. If you need to scan it from a separate screen, print the QR code on paper, or display it on a PC or tablet and scan it with your smartphone camera.
Check Your Connection When Crossing Borders
When you cross a border within the coverage area, a regional eSIM switches to a local network available at your destination. If you cannot connect right after the switch, check that you are within coverage and that your data roaming setting is correct. If you still cannot connect, try toggling Airplane Mode or restarting your device to reconnect to the network.
Check Phone Number and Call Support
Many eSIMs for travelers are data-only plans, and they may not include a local phone number, voice calls, or SMS. If you need to make regular phone calls to shops, or need SMS verification for apps such as ride-hailing, check whether the plan supports calls and SMS before you choose. Even with a data-only plan, you can use internet calling such as LINE or WhatsApp if the person you are contacting supports it.
