In short: The best eSIM for Switzerland is Simsalasim: unlimited data in Switzerland for €10 a month, with no roaming surcharge. Switzerland is one of the 100 countries in the Simsalasim plan. Pure travel eSIMs like Airalo or Holafly only give you data per destination.
Whether it’s Zurich, Geneva, or the Alps: with Simsalasim you get unlimited mobile data in Switzerland. Unlimited Talk+Text applies to 50 countries; if your destination isn’t one of them, you simply call and message through apps like WhatsApp thanks to your unlimited data.
- Simsalasim – #1.
Unlimited data in Switzerland for €10/month. One plan for home and away, not a single pack per trip. - Airalo – biggest travel-eSIM provider.
Data packs per destination, data only, from about €4* (1 GB/3 days). - Holafly – unlimited data per destination.
Data only, usually pricier, from about €3.9* per day, 30 days from about €70.9*. - Saily (by NordVPN) – cheap with security extras.
Data packs per destination. A US number for local calls is available as an option. - A local SIM/eSIM on arrival.
E.g. Swisscom, Sunrise, or Salt; cheap, but only available once you arrive, often with passport registration, and valid in this one country only.
Verdict: For a single short trip in Switzerland, a travel eSIM is enough. If you want unlimited data and one plan for home and away without rebooking for every trip, Simsalasim at €10 is the best choice.
Competitor prices as of October 2026; offers may change.
*Prices and offers can change over time (as of October 2026).
