HERO, 2000×1100The Lauterbrunnen valley.
Staying connected
Mobile data in Switzerland
Whether you need an eSIM at all, the three ways to get data, and how to set one up so it works the moment you land.
Staying connected
Whether you need an eSIM at all, the three ways to get data, and how to set one up so it works the moment you land.
You will lean on your phone here more than you expect: train tickets and platforms in the SBB app, the live webcams before you commit to a mountain, lift status, and the weather radar when the cloud is deciding what to do. The cheapest way to have data from the moment you land is usually an eSIM, set up before you fly.
Switzerland is not in the EU, so the EU’s “roam like at home” rules do not apply here. Plenty of European and UK plans either charge extra for Switzerland or leave it out altogether, and North American plans usually charge a daily roaming fee. Look up “Switzerland” in your own provider’s roaming list before you travel. If it is included at no extra cost, you do not need anything on this page.
A data-only Swiss eSIM running on the Sunrise and Salt 5G networks, sold through Klook. Plans run from small daily allowances up to unlimited, for anything from 1 to 30 days, and the validity only starts when it first connects to a Swiss network, so you can install it at home days ahead. You can share it to a laptop or a partner’s phone as a hotspot.
For maps, the SBB app, webcams and the odd photo sent home, a few gigabytes a week is plenty. If you upload video or work from the valley, take a bigger plan or unlimited. The SBB app itself is light, so tickets will never be what eats your allowance.
The valley floor, Wengen, Mürren and the main lift stations are well covered. As anywhere in the mountains you will hit dead spots in places, so download offline maps for the trails before you set out rather than relying on signal halfway up.
Next: getting here by train, and the pass calculator to work out which travel card to buy.
Common questions
Only if your own phone plan charges for Switzerland or leaves it out. Switzerland is not in the EU, so EU roam-like-at-home rules do not apply. Check your provider's roaming list first; if Switzerland is included at no extra cost, you do not need one.
No. The eSIM we recommend is data only. Your normal number stays active on your home SIM for calls and security texts, and messaging apps work over the eSIM's data.
Yes. The valley floor, the car-free villages and the main lift stations are well covered. Expect dead spots on some trails, as anywhere in the mountains, and download offline maps before you hike.
At home, on Wi-Fi, before you fly. Validity starts only when it first connects to a Swiss network, so installing early costs you nothing.
On the valley floor, with the station a short walk away.
Nightly ranges for our own three places, before cleaning. What you actually pay moves with the dates, the length of stay and how far ahead you book, so treat these as the shape of it rather than a quote. Dollar figures are converted at 1 USD = 0.835 CHF, set 15 October 2026.
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