Staying connected in Switzerland.

Switzerland is in Schengen, which is why nobody checks your passport at the border, and it is not in the EU or the EEA, which is why your phone notices the border even when you do not. EU roaming rules do not extend here. For a US traveler the practical consequence is not about EU carriers, it is about what you buy: a regional Europe eSIM or a carrier Europe add-on may cover 30-odd countries and still exclude Switzerland, and the plan name will not tell you.

So the single most useful thing on this page is a check rather than a purchase: before you buy anything for an Alps trip, open the covered-country list and look for Switzerland by name. Plenty of plans do include it, often as a Europe-plus tier for slightly more. A traveler who buys a Europe plan for a week in Zermatt and discovers the gap on arrival has been failed by whoever sold it, and we would rather that not be us. The AT&T and Verizon day passes do include Switzerland.

Most countries on this site have a clear answer. Switzerland does not. Swisscom prepaid sells unlimited data for about 2 francs a day, on the strongest network in Europe, which on a data-heavy week is hard to beat once the starter pack, roughly 20 to 40 francs, is paid for. Against that, a Nomad eSIM is a few dollars per gigabyte with nothing to collect, no passport at a counter and no starter pack. If you are streaming and tethering for ten days, run the Swiss numbers. If you want maps, messaging and a few photos uploaded, the eSIM is cheaper and simpler.

Two practical notes. Swiss shops sell physical SIMs, so if your phone has no SIM tray a local plan means a local eSIM ordered online rather than a counter purchase, and staff cannot help with that. And Swiss prepaid data is valid in Switzerland only: it does not roam into the EU on the terms an EU SIM would, so it is the wrong buy if Switzerland is one stop on a longer European trip. In that case a regional plan that explicitly names Switzerland is the clean answer.

This section is short because Switzerland has solved it. Coverage is strong in the cities, across the valleys, up most of the cable cars and mountain railways, along the passes and through the long rail tunnels that break the signal in neighboring countries. The scenic trains, the Glacier Express and the Bernina among them, generally hold a connection. High off-piste terrain and the deepest side valleys can thin out, and that is a hiking detail rather than a trip-planning problem.

So the decision here really is only about price and about the country list, which is unusual and worth saying plainly rather than manufacturing a warning. Download offline maps for a serious mountain day anyway, on the general principle that a phone in the Alps has other ways to fail. This guide is written for US travelers departing the US. For more, see cash or card in Switzerland and the Switzerland money guide.

Common questions

Quick answers.

More on Switzerland

The little money things nobody warns you about.

• Taxis in Switzerland, and why to take the trainSwiss taxis are honest and metered, but among the most expensive anywhere, and the public transport is so good that you will rarely want one. Here is how it works.
• Tipping in SwitzerlandSwitzerland is a light-tipping country. Service was folded into prices long ago and staff earn strong wages, so nobody expects a US-style percentage. Rounding up for good service is the norm. Here is what you actually owe.
• Do I need cash in Switzerland, or can I use cards?Short answer: a card for almost everything, a little cash in francs. Switzerland is very card-friendly, but the thing to get right is the currency: it uses Swiss francs, not euros, despite being surrounded by the eurozone.
• Bringing your dog or cat to Switzerland.Switzerland runs on the single EU pet-entry process for a US-origin dog or cat: microchip, rabies in the right order, and an EU health certificate on a 10-day clock. No quarantine, no rabies titer. Here is what that means for Switzerland, and the local parts worth knowing.
• Is the Swiss Travel Pass worth it?Everywhere else on this site the answer is usually to skip the pass. Switzerland is the exception, because Swiss trains are genuinely expensive and the pass covers an unusual amount. The catch is that its real competitor is not a stack of tickets.
• What does getting sick in Switzerland cost a visitor?Switzerland runs one of the best health systems in the world and one of the least free. There is no NHS-style public service to fall outside of, because there is no free public service for anyone.