How to Choose a Travel SIM for Multiple European Countries?

Why You Need to Think Specifically About Travel SIMs for Europe

Unlike single-country trips to places like Japan or South Korea, travelling in Europe often involves crossing multiple countries in one journey — entering in Paris, exiting from Zurich, and visiting Italy in between is a very common itinerary. If you buy a separate card for each country, not only is it cumbersome, but it’s also easy to miscalculate the number of days and data allowance.

In addition to our single-country pages, we also offer multi-country plans (e.g., Europe card): a single card can be used across multiple countries within its coverage area without needing to switch cards when crossing borders. The “applicable regions” on the plan card will list all the covered countries, so remember to check that every stop on your itinerary is within the coverage before placing an order.

Multi-country plans vs. single-country purchases: how to choose?

• If your itinerary covers 3 or more European countries → a multi-country plan is usually the most convenient, as you can use one card for the entire trip without needing to switch cards at borders or risk forgetting to buy for any stop.
• If you’re mainly staying in one country but passing through one or two others → check if the multi-country plan’s coverage includes the countries you’ll be passing through; if not, you’ll need to consider a single-country plan or choose a different multi-country card.
• If you’re only visiting one country → choose the relevant single-country page and don’t pay extra for a multi-country plan just to “be on the safe side”.
• If your itinerary is scattered and not covered by a single card → you can buy in segments, switching to the card you’re currently using when crossing borders (using a dual-SIM phone or installing a new eSIM on arrival).

How to choose the right multi-country plan for your itinerary

When choosing a multi-country plan, the most crucial step is to verify the 'applicable regions' list — don't assume a plan like the 'Europe Card' covers all of Europe, as coverage and country lists can vary significantly between plans.

• Check each destination on your itinerary against the applicable regions list to ensure all are covered, as missing even one country may require additional arrangements.
• Be mindful of how days and data are calculated: Like single-country plans, multi-country plans usually count days from the first connection, not the purchase date, so you can buy and set up in advance.
• For extensive travel and high data usage, opt for daily fixed or unlimited plans to avoid depleting your data pool in the first few days.

Placing an Order and Activation

On the Europe destination page or multi-country plans page, you can filter by package type, duration, and data, with prices in Hong Kong dollars. It's advisable to install the eSIM while in Hong Kong with Wi-Fi, and remember to enable data roaming before departure; no additional steps are needed while crossing borders as the plan already includes international coverage.

Where might you lose connectivity?

When travelling in Europe, choosing the right data plan is crucial. Network coverage can vary significantly between countries, cities, and regions, so it's important to plan accordingly.

Here are the network coverage realities for some popular European travel destinations to help you avoid the awkwardness of arriving without service.

Which itineraries to expect to have no service

• Self-driving・Mountain areas → Reykjavik and the Route 1 ring road in Iceland have coverage, but inland highlands, glaciers, and some fjords have no signal, so prepare offline maps for driving. Oslo, Bergen, and other cities in Norway have 5G, but fjords, mountain roads, and the northern Arctic Circle have intermittent signals, so download offline maps for driving. Switzerland has excellent network coverage, with signals available on mountain railways and high-altitude stations, but deep valleys and some tunnels may have no service. Vienna, Salzburg, and other cities in Austria have good coverage, with most ski resorts in the Alps having signals, but valleys may have intermittent service. Bratislava and major cities in Slovakia have good coverage, but some hiking routes in the Tatra Mountains have no signal. Warsaw, Krakow, and other cities in Poland have good coverage, with high 4G density nationwide, but some sections of the Tatra Mountains may have intermittent service. Ljubljana, Lake Bled, and other areas in Slovenia have good coverage, but some routes in the Julian Alps may have intermittent service. Bucharest and major cities in Romania have good coverage, but the Carpathian Mountains and rural areas have weaker signals.
• Islands・Ferries → Athens and major islands (Santorini, Mykonos, Crete) in Greece have good coverage, but smaller islands and ferry routes may have no service. Zagreb, Dubrovnik, Split, and other cities in Croatia have good coverage, but the Adriatic Sea islands and national parks have weaker signals. Lisbon and Porto in Portugal have good coverage, but Madeira, the Azores, and inland mountains are mainly 4G. Madrid, Barcelona, and other cities in Spain have good 5G coverage, but the Canary Islands, the Pyrenees, and inland towns are mainly 4G. Malta has continuous coverage across the island, but Gozo and coastal caves have weaker signals.
• Northern Lights・Nordic regions → Southern cities like Stockholm in Sweden have good coverage, but large areas of Lapland and the Arctic Circle have only sporadic coverage, so prepare offline maps for northern lights tours. Helsinki and southern cities in Finland have good coverage, but the Lapland northern lights zone, lake areas, and national parks have large areas with weak signals.
• High-speed train lines → Major cities like Berlin, Munich, and Frankfurt in Germany have good 5G coverage, but the ICE high-speed trains and some rural areas have historically had weaker signals, which have been gradually improving in recent years. Major cities like Paris, Lyon, and Marseille in France have good 5G coverage, but the TGV high-speed train lines generally have signals, while parts of the Alps and rural areas have only 4G or no coverage.
• Special attention → Limassol, Larnaca, and other cities in Cyprus have good coverage, but the Troodos Mountains have weaker signals. ⚠️ Northern Cyprus operates on a different telecommunications network, and most European plans do not cover it, which is a trap to be aware of as you may not be able to use your card there.