eSIM for Switzerland

Switzerland is not in the EU: what that means for roaming

The EU's Roam like at Home rules let people with SIMs from EU countries use their domestic allowance when travelling within the EU and the wider European Economic Area. Switzerland is in neither, so those rules do not automatically apply there.

In practice, some EU carriers include Switzerland in their plans voluntarily, while others treat it as a separate roaming zone with its own charges. The only way to be sure is to check your own carrier's terms for Switzerland before you travel, rather than assuming your EU allowance carries over.

The same caution applies to multi-country trips. If you are buying a regional plan, check that Switzerland is listed among the covered countries rather than assuming it is included because it is in the middle of Europe.

eSIM, roaming or a local Swiss SIM

Each option has its place. Here is how they compare for a typical visit.

How much data a Swiss trip uses

The amounts below are approximate and depend on your phone, apps and habits. They assume you use hotel Wi-Fi for big downloads and photo backups.

• Train apps and timetables: checking connections and showing tickets uses little data, but you use it many times a day.
• Maps and hiking apps: a day on the trails with downloaded maps uses relatively little; streaming map tiles uses more.
• Webcams and weather: many mountain areas publish live webcams, which are handy for deciding whether a summit trip is worth it that day. Viewing them uses some data.
• Messaging and social media: a few hundred MB on a typical day; uploading videos of the view uses much more.
• Video calls: roughly several hundred MB to around 1 GB per hour.
• Streaming: often 1 GB or more per hour of video.

Before you travel

Install the eSIM at home on Wi-Fi. Adding an eSIM requires an internet connection, and it is far easier to do calmly before the trip.

• Dial *#06# and check for an EID number.
• Follow the install guide for iPhone, Samsung or Pixel.
• Label the line and set it for mobile data; keep your home SIM for calls and texts.
• Check your home carrier's roaming terms for Switzerland and turn off data roaming on your home line if needed.
• Install the SBB Mobile app and save any rail pass or scenic train reservations to your phone.
• Download offline maps for the regions and hikes you plan to visit.

Arriving in Switzerland

The main international airports are Zurich and Geneva, both with railway stations at the terminal and frequent trains into the city and onwards across the country. Basel is served by the EuroAirport Basel-Mulhouse-Freiburg, which is located on French territory and serves Switzerland, France and Germany. Many visitors also arrive by train from Milan, Paris, Munich or Frankfurt.

Once you are in Switzerland, turn on data roaming for the Spidot line using our data roaming guide. Give the phone a minute to connect, and toggle airplane mode once if it does not.

If you land at Basel's EuroAirport, your phone may connect to a French network at the airport itself. With a Switzerland-only plan, data may only start once you cross into Switzerland. If your trip includes France, Germany or Italy, a regional plan such as the Europe plan can be simpler, provided Switzerland is on its country list.

Coverage in cities, valleys and high mountains

Switzerland's terrain ranges from lakeside cities to glaciers. In Switzerland, the Spidot eSIM connects to Salt and Sunrise. Cities and inhabited valleys are generally well covered, and many popular mountain destinations are too, but steep terrain always creates some gaps.

Border areas: watch which network you are on

Switzerland has several busy border areas where cities and lakes are shared with neighbours: Geneva with France, Basel with France and Germany, Lake Constance with Germany and Austria, and Lugano and Lake Maggiore with Italy. In these places, your phone can sometimes pick up a foreign network even while you are standing in Switzerland.

With a Switzerland-only plan, this can stop your data from working. If you notice a French, German, Italian or Austrian network name, open your mobile network settings, turn off automatic network selection and choose a Swiss network manually. Turn automatic selection back on later if you move on.

With a multi-country plan that covers both Switzerland and its neighbours, the switch between networks usually happens without you noticing.

Data on Swiss trains and scenic railways

Swiss trains are famously punctual and well integrated with buses, boats and mountain railways. The SBB Mobile app shows timetables, platform information and tickets, and many travellers use a Swiss Travel Pass or regional passes stored on their phone.

Mobile data generally works on main lines between Zurich, Bern, Basel, Geneva and Lucerne, with short gaps in tunnels. On the long base tunnels, such as the Gotthard and Lötschberg, and on the scenic routes through the mountains, expect interruptions.

• Glacier Express and Bernina Express: these routes cross remote mountain passes, high viaducts and long tunnels, so coverage comes and goes. Download entertainment beforehand and enjoy the view.
• GoldenPass and the Lucerne-Interlaken route: generally good near lakes and towns, with gaps in tunnels and gorges.
• Cogwheel and cable car ascents: the Jungfraujoch, Gornergrat, Pilatus, Rigi and Titlis lifts pass through tunnels or over steep terrain, so signal can drop on the way up. Summit stations at popular viewpoints often have coverage, but do not rely on it.
• Lake boats: on Lake Geneva, Lake Lucerne, Lake Zurich and others, coverage from the shore usually reaches the boat.

Phone safety in the Alps

In the mountains your phone is a safety tool, but never your only one.

• Download maps and routes before setting out, and check the weather forecast and, in winter, the avalanche bulletin.
• Keep your phone warm in an inside pocket and carry a power bank, because cold drains batteries quickly.
• Save emergency numbers: 112 works in Switzerland, and the Swiss air rescue service Rega can be reached on 1414.
• Tell someone your route and expected return time, especially for glacier or off-piste trips.

Hotspot and public Wi-Fi

You can usually share your Spidot data with a laptop or tablet through your phone's personal hotspot, which is useful in chalets with weak Wi-Fi or when working on the train. Laptops can use a lot of data in the background, so set the connection as metered, pause automatic updates and check how much data is left from time to time.

Free Wi-Fi is available at many stations, hotels and cafés. Use it for browsing, but prefer mobile data for banking and payments, avoid networks with suspicious names and turn off automatic joining of open networks.

Practical tips for Switzerland

The currency is the Swiss franc, not the euro. Card and contactless payments, including phone wallets, are widely accepted, and Twint is a popular local payment app among residents. Some places accept euros in cash, usually with change given in francs, but paying by card in francs is generally simpler. Mountain huts and small farm shops may prefer cash.

Switzerland has four national languages: German, French, Italian and Romansh. The language changes as you cross between regions, so station names and signs may switch from German in Zurich to French in Geneva and Italian in Lugano. A translation app helps outside the main tourist areas.

Popular trains such as the Glacier Express and Bernina Express often require seat reservations in addition to a ticket or pass, so book ahead in high season and store the reservation on your phone.

Combining Switzerland with neighbouring countries

Many trips combine Switzerland with France, Italy, Germany or Austria: Geneva with Chamonix, Lugano with Lake Como and Milan, Basel with the Black Forest, or Zurich with Innsbruck. For these trips, a multi-country plan can be simpler than several single-country plans.

Before you buy a regional plan such as the Europe plan, which covers 36 countries, check the country list to confirm that Switzerland is included, because it is not part of the EU. If it is not, combine a regional plan with a separate Switzerland plan.