Swisscom is the best local SIM in Switzerland thanks to unmatched coverage in the Alps and on trains, with Sunrise and Salt as cheaper rivals and budget MVNOs like Lebara, Yallo, Coop Mobile and Lidl Connect riding their networks. The catch is that Swiss SIMs are expensive and only work inside Switzerland, so for most travelers a travel eSIM is easier and cheaper. See our Switzerland eSIM guide to compare, or let the eSIM Finder pick for you.
What This Guide Covers
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Switzerland's Mobile Landscape
Switzerland has three mobile network operators: Swisscom, Sunrise, and Salt. Swisscom is the former state monopoly and still has the best network, reaching about 99.9% of the population with strong 4G and 5G even high in the Alps. Sunrise is a close second, and Salt is the value challenger with the smallest (though still good) network. A handful of budget MVNOs ride on these three networks.
The thing every visitor needs to know up front: Swiss SIM cards are among the most expensive in Europe, and they only work inside Switzerland. There is no included EU roaming, so the moment you cross into Germany, France, Italy, or Austria, a Swiss SIM stops working unless you pay steep roaming fees.
Switzerland Is Not in the EU
Switzerland is not part of the EU or the EEA, so the "Roam Like at Home" rules do not apply. A Swiss prepaid SIM does not roam across Europe for free, and an EU SIM from another country does not automatically include Switzerland either. If your trip mixes Switzerland with EU countries, an eSIM with a regional Europe plan that lists Switzerland is usually the simplest fix.
Passport Required to Buy
Unlike France, Switzerland legally requires every SIM to be registered to a named person. You must show your passport (or national ID) to buy and activate any prepaid SIM, and the shop will record your details. Always buy from official carrier stores or reputable retailers.
Swisscom Prepaid
Swisscom: Best Coverage in the Alps and on Trains
Switzerland's top network, with the strongest signal in the mountains and on rail routes
Swisscom is the carrier to pick if coverage matters most. Its network reaches roughly 99.9% of the population and is consistently the best on Swiss mountain railways, ski resorts, and main rail corridors. If you are heading to Zermatt, Grindelwald, Interlaken, St. Moritz, or up to viewpoints like Jungfraujoch, Swisscom is the most reliable choice.
For tourists, Swisscom sells dedicated Prepaid Flat plans with unlimited data and calls inside Switzerland. The 7-day plan is CHF 20, the 30-day is CHF 65, and the 90-day is CHF 150, available as a physical SIM or eSIM. A standard Swisscom prepaid SIM is also sold for about CHF 19.90 with CHF 20 starting credit, after which data runs around CHF 2 per day.
Strengths
Weaknesses
Sunrise Prepaid
Sunrise: The Strong Runner-Up
Switzerland's number-two network with coverage close to Swisscom and slightly lower prices
Sunrise runs the second-best network in Switzerland, only narrowly behind Swisscom and ahead of Salt. Coverage in cities and most tourist areas is excellent, and it holds up well in the mountains, though Swisscom still has a slight edge on the most remote alpine routes.
The Sunrise prepaid SIM costs CHF 19.90 and comes with CHF 20 of starting credit. The Prepaid Unlimited option charges CHF 2.50 for a 24-hour pass with unlimited data, calls, and texts in Switzerland, and you only pay on days you actually use it, which is handy for a short trip.
Salt and Budget MVNOs
Salt: The Value Network
The cheapest of the big three, with a free prepaid SIM and a low daily data rate
Salt is the budget option among the three networks. Its prepaid SIM is often free (you just add credit), and unlimited data runs CHF 1.99 per day, the lowest daily rate of the big three. Coverage is solid in cities and most populated valleys, but it is the weakest of the three on remote mountain and high-alpine routes, so it is best for travelers staying mostly in towns and ski resorts rather than off-grid hiking.
Budget MVNOs Ride on the Big Three
Several discount brands use the same towers as the main carriers, so coverage is identical to the host network even though prices are lower:
Lebara and Yallo run on the Sunrise network. Their starter packs cost around CHF 19.90 to CHF 20 with matching credit. Lebara also offers eSIMs, which most Swiss MVNOs do not.
Coop Mobile rides on the Swisscom network, so you get Swisscom-grade coverage at a lower price, sold in Coop supermarkets.
Lidl Connect runs on the Salt network and is sold in Lidl stores, with a starter pack around CHF 9.95 including credit and free calls to other Lidl Connect and Salt numbers.
Switzerland SIM Card Plans Compared
| Carrier | Data | Price | Validity | Network | Best For |
|---|---|---|---|---|---|
| Swisscom Flat 7 | Unlimited | CHF 20 | 7 days | Swisscom | Alps and trains |
| Swisscom Flat 30 | Unlimited | CHF 65 | 30 days | Swisscom | Longer stays |
| Sunrise Prepaid | Unlimited/day | CHF 2.50/day | Pay per day | Sunrise | Flexible short trips |
| Salt Prepay | Unlimited/day | CHF 1.99/day | Pay per day | Salt | Budget, city stays |
| Lidl Connect | Varies | CHF 9.95 start | Prepaid | Salt | Cheapest entry |
All prices are for Switzerland-only use. None of these plans include free EU roaming, and Swiss roaming charges in neighboring countries can be high, so treat these as domestic plans only.
Where to Buy a SIM Card in Switzerland
Zurich Airport (ZRH)
The Airport Shopping mall across from Arrivals has a Swisscom store and a Salt store, open roughly 8 AM to 9 PM, both accepting international cards. There is also a smaller Mobile Corner near baggage belt 26 with shorter hours. Bring your passport to register.
Geneva Airport (GVA)
Geneva Airport has Sunrise and Salt shops in the arrivals area. There is no Swisscom counter at the airport itself, so if you want Swisscom you will need a Swisscom store in Geneva city center.
Carrier Stores in the City
Swisscom, Sunrise, and Salt all have stores on main shopping streets in Zurich, Geneva, Bern, Basel, and Lucerne. Staff generally speak English and can register your SIM on the spot. This is the easiest way to get a Swisscom SIM.
Supermarkets, Post Offices and Kiosks
Coop supermarkets sell Coop Mobile (Swisscom network) and Lidl stores sell Lidl Connect (Salt network). Swiss Post offices and k kiosk newsstands at stations also carry prepaid SIMs. You still need your passport to register, and a passport copy may be taken.
Buy or Activate Before You Arrive
Swisscom lets you set up its tourist prepaid plan in advance, but the eSIM or SIM only activates once it connects to the Swisscom network in Switzerland. An international travel eSIM avoids registration entirely and is ready the moment you land.
eSIM vs Local SIM Card in Switzerland
| Factor | eSIM | Local SIM |
|---|---|---|
| Setup time | 3 minutes (before your flight) | 10 to 20 minutes at a store |
| Passport required | No | Yes, Switzerland requires registration |
| Price (7 days) | Around $6 to $12 (data-only) | CHF 20 and up (unlimited domestic) |
| Covers rest of Europe | Yes, with a Europe regional plan | No, Switzerland only |
| Best for | Short trips, multi-country travel, data only | Longer stays, need a Swiss number or calls |
Because Swiss SIMs are expensive, require your passport, and only work inside Switzerland, an eSIM is the better fit for most visitors. A Europe regional eSIM that includes Switzerland keeps working when you cross into Italy, France, Germany, or Austria, which a Swiss SIM will not. Choose a local SIM mainly if you need a Swiss phone number or a lot of voice calls.
Switzerland-Specific Tips
Practical Advice for Staying Connected in Switzerland
Alps and ski resorts: Swisscom has the most reliable mountain coverage, including Zermatt, Grindelwald, Interlaken, St. Moritz, and major passes. Above roughly 3,000 m or on remote trails, expect occasional gaps on any network.
Trains: Coverage on SBB main lines is generally good, with brief drops in some tunnels. Swisscom and Sunrise perform best on rail routes.
Crossing borders: A Swiss SIM does not include EU roaming, and an EU SIM does not automatically cover Switzerland. For multi-country trips, use a Europe eSIM that explicitly lists Switzerland.
Passport: Always carry your passport when buying a SIM. Registration is mandatory and the shop will record your identity.
WiFi: Free WiFi is common in hotels, cafes, and on many SBB trains and stations, which can stretch a smaller data plan.
Frequently Asked Questions
Do I need my passport to buy a SIM in Switzerland?
Yes. Swiss law requires every SIM card to be registered to a named person, so you must show your passport or national ID to buy and activate any prepaid SIM. The shop will record your details and may take a copy of your passport, so only buy from official carrier stores or reputable retailers.
Why are Swiss SIM cards so expensive?
Switzerland has high operating costs and a small, premium market, so mobile plans cost more than in neighboring EU countries. Tourist plans typically start around CHF 20 for a week. The trade-off is excellent coverage, especially Swisscom's reach into the Alps and on trains, but for budget-conscious data-only travelers an eSIM is usually far cheaper.
Will my Swiss SIM work in the EU, and does an EU plan cover Switzerland?
Generally no in both directions. Switzerland is not in the EU or EEA, so the free "Roam Like at Home" rules do not apply. A Swiss prepaid SIM only works inside Switzerland and charges high roaming fees abroad, while an EU SIM from another country does not automatically include Switzerland. For trips that mix Switzerland with EU countries, use a Europe regional eSIM that specifically lists Switzerland.
Which network is best for the Alps and trains?
Swisscom. It reaches about 99.9% of the population and has the strongest signal in ski resorts, mountain villages, and on SBB rail routes, with Sunrise a close second. Salt is fine in cities and valleys but weaker on remote alpine routes. Above 3,000 m or in long tunnels you may still lose signal on any carrier.
Should I get an eSIM or a physical SIM for Switzerland?
For most short-term and data-only visitors, an eSIM is easier and cheaper. It installs in minutes, skips the mandatory passport registration, and a Europe regional plan keeps working when you cross into nearby EU countries. Choose a physical local SIM mainly if you need a Swiss phone number or make a lot of voice calls during a longer stay.