The quick verdict
An eSIM is the easy choice — but Switzerland is not in the EU, so a Europe plan may or may not include it.
Get an eSIM for Switzerland ↗
Airalo sells a local Switzerland eSIM — pick it on their store. Some links here are partner links: if you buy through them, Diaries of Travels may earn a commission at no extra cost to you. We only point to a service when it matches the advice on the page, and a commission never changes what we recommend. Disclosure →
What to expect
- Coverage
- Switzerland has outstanding coverage, including deep in the Alps and on the scenic rail lines.
- Networks
- Runs on Swisscom, Sunrise or Salt.
- Data for a week
- 5 GB for a week covers cities and mountain days.
- Good to know
- Check the plan lists Switzerland explicitly. Swisscom-based coverage is best if you're riding the Glacier or Bernina Express.
eSIM, local SIM or roaming?
For most trips to Switzerland, an eSIM is the simplest choice: you buy and install it before you fly, then land already online. A local SIM can be cheaper for very long stays, but means queuing at the airport and sometimes registering ID. Your home carrier's roaming is the most expensive option and worth avoiding unless your plan already includes Switzerland.
How to set up your Switzerland eSIM
- Check your phone. It needs to be eSIM-compatible and carrier-unlocked. Most phones from the last few years qualify.
- Buy the Switzerland eSIM before you fly, while you still have Wi-Fi at home.
- Install it over Wi-Fi. A one-tap install or a QR code adds it as a second line — your home SIM stays in place.
- Land and switch on. Turn on data roaming for the eSIM line only. It connects to a local network automatically.
- Keep your number. Leave your home SIM active for calls and texts, and use the eSIM for data.
One honest caveat
Coverage, plans and prices change, and networks vary by region within Switzerland. Always download offline maps for anywhere remote, and check your phone supports eSIM before you buy.