Zermatt, Geneva or the Glacier Express? Switzerland isn’t in the EU, and UK plans treat it differently. See which networks include it before you pay for an eSIM.
Graba SIM eSIM for Switzerlandfrom £2.25prepaid, no contract, in pounds
5GB for 30 days£3.99enough for most two-week trips
Local networksSunrise, Salt5G where the network offers it
QR code by emailinstall before you fly
Keep your UK numberdata-only eSIM
24/7 live chatin the Graba SIM app
Pay your way
Before you buy: straight answers
Which UK networks include Switzerland in roaming?
EE: EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for Switzerland. O2: O2 treats its Europe Zone separately from O2 Travel, and what you pay in Switzerland depends on your plan. Check your plan in My O2 before you go. Vodafone: Check what Vodafone charges in Switzerland in its roaming charge checker. Its European roaming passes only cover Zone B. Three: £2.75 a day in Go Roam in Europe (£2 on plans from 2021 to 2025), or £12 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data.
Is a Swiss eSIM worth it for a ski week?
If your UK network charges for Switzerland or leaves it out, usually yes: one price for the week, and signal on the slopes when your group splits up.
Will it work on the scenic trains?
Between tunnels, yes. The Glacier Express and Bernina lines run through long tunnels where every network drops.
What your trip to Switzerland costs
Set your trip length and how you use your phone. eSIM bars are data-only plans that cover the whole trip; UK network bars use your UK allowance and include calls and texts. EE and O2 and Vodafone don’t publish a price for Switzerland that we can check, so they aren’t charted.
Cost of 7 days’ mobile data in Switzerland, in pounds
For each trip we pick the current plan that costs the least while lasting the whole trip and gives about 0.3 to 0.7 GB a day, enough for maps, messages and social media. A plan may last longer than the trip. Everyone uses data differently, so check your phone’s recent data use. “Best value” only appears when that plan also costs the least per GB of all the plans that fit.
Arriving in Switzerland
GVA Geneva
ZRH Zurich
BSL Basel EuroAirport
BRN Bern
Geneva airport has a French side and a Swiss side, and Basel’s EuroAirport sits in France. Your phone can join a French network in both, so check which network you’re on before you use data.
Signal where people go
Zermatt and the Matterhorn
Good in the village and on the main lifts and pistes.
Geneva and Lausanne
Strong across the cities; near the border phones can switch to a French network.
Interlaken and the Jungfrau
Good in the valley and at the main stations; high ridges are patchier.
Scenic trains
The Glacier and Bernina Express run through long tunnels, where signal drops.
Networks our Switzerland plans use:SunriseSalt
Your UK network in Switzerland
Switzerland is outside the EU, so Europe roaming deals on UK plans don’t cover it. What each network publishes for Switzerland, and a week of it:
Network
What it charges
7 days
Compare
EE
Varies by plan EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for Switzerland.
O2 Europe Zone O2 treats its Europe Zone separately from O2 Travel, and what you pay in Switzerland depends on your plan. Check your plan in My O2 before you go.
Go Roam in Europe £2.75 a day in Go Roam in Europe (£2 on plans from 2021 to 2025), or £12 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data.
Sources:EE (checked 29 October 2026) · O2 (checked 29 October 2026) · Vodafone (checked 29 October 2026) · Three (checked 6 November 2026). Prices change; check before you buy.
Graba SIM vs Airalo: the same plans, side by side
Plans with exactly the same data allowance and validity for Switzerland, both data-only and priced in pounds. Coverage and networks can differ, so check the plan details before you buy.
Switzerland is not in the EU, so an EU roaming allowance on your UK plan may not cover it. Check the Switzerland row for your network on this page.
Near Geneva, Basel and Lake Lugano, phones can switch between Swiss, French and Italian networks. A Swiss-only plan covers Switzerland, so check the coverage for day trips.
Ski lifts and mountain restaurants often have Wi-Fi, but signal on the slopes is what you need if your group splits up.
Crossing a border from Switzerland?
A Switzerland plan covers Switzerland only. This is what your UK network charges next door:
Check your phone is unlocked and supports eSIM on our compatibility page.
Install the plan at home on Wi-Fi with our iPhone or Android guide.
When you land at Geneva, switch mobile data to the eSIM and turn on data roaming for it only.
Questions about Switzerland
Does my UK plan’s Europe roaming include Switzerland?
It depends on the network. Switzerland isn’t in the EU, and each UK network decides whether its Europe deal includes it. The network table on this page shows what each one publishes.
Does a Switzerland eSIM work in France and Italy?
A Switzerland plan covers Switzerland. If you cross into France or Italy, add a plan for those countries or choose a Europe plan that lists Switzerland too.
Is a travel eSIM cheaper than roaming in Switzerland?
For a week with about 0.7 GB a day, the Graba SIM 5GB, 30 days plan costs £3.99, less than each published UK network option for Switzerland (the lowest is Three at £12.00). UK network prices include calls and texts; the eSIM is data only.
What do UK networks charge in Switzerland?
EE: EE doesn’t publish one price for every country: it prices roaming by destination, plan and start date. Check EE’s roaming tool for Switzerland. O2: O2 treats its Europe Zone separately from O2 Travel, and what you pay in Switzerland depends on your plan. Check your plan in My O2 before you go. Vodafone: Check what Vodafone charges in Switzerland in its roaming charge checker. Its European roaming passes only cover Zone B. Three: £2.75 a day in Go Roam in Europe (£2 on plans from 2021 to 2025), or £12 for a 7-day pass. Unlocks your UK calls, texts and up to 12 GB of your UK data.
What if something goes wrong?
Live chat in the Graba SIM app is open 24/7. Email and contact-form requests are answered Monday to Friday.
