Prices in pounds · Three prices checked 6 November 2026
Three roaming in Switzerland vs a travel eSIM
In Switzerland, Three uses its Go Roam in Europe prices. Here is what that costs for a long weekend, a week and a fortnight, next to a data-only travel eSIM for the same trip.
Photo : Henrique Ferreira on Unsplash
Three vs eSIM in Switzerland: 3, 7 and 14 days
Three’s lowest published option in Switzerland for each trip length, next to a Graba SIM Switzerland plan with about 0.7 GB a day.
- 3 days
- 7 days
- 14 days
Three roamingGraba SIM eSIM
| Trip | Three | Graba SIM eSIM | Difference |
|---|---|---|---|
| A long weekend3 days | £5.003-day pass | £3.995GB, 30 days | The eSIM is £1.01 less |
| A week7 days | £12.007-day pass | £3.995GB, 30 days | The eSIM is £8.01 less |
| A fortnight14 days | £24.0014-day pass | £5.4910GB, 30 days | The eSIM is £18.51 less |
What’s included: Three: your UK calls, texts and up to 12 GB of your UK data. Graba SIM: data only, prepaid; your Three SIM stays in your phone for calls and texts. Graba SIM prices are live; Three prices checked 6 November 2026.
Sources: Three roaming (checked 6 November 2026). Prices change; check before you buy.
Graba SIM Switzerland plans: data, validity and total price
The 20GB plan costs much more than the smaller sizes here. At about 0.7 GB a day, most week-long trips need around 5 GB.
Each plan is a one-off price for one eSIM. It starts when it first connects in Switzerland, and hotspot use comes out of the same data.
Using your phone in Switzerland
- GVA Geneva
- ZRH Zurich
- BSL Basel EuroAirport
- BRN Bern
- 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
- 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.
Going further with Three
- France (Chamonix and the French side of Geneva): Three charges £2.75 a day (Go Roam in Europe).
- Italy (Lake Como and Lake Maggiore): Three charges £2.75 a day (Go Roam in Europe).
- Liechtenstein (Liechtenstein, next to St. Gallen): Three charges £2.75 a day (Go Roam in Europe).
What you get for the money
Three Go Roam in Europe
- £2.75 a day if you joined or upgraded on or after 18 December 2025; £2 a day if you joined between October 2021 and December 2025.
- Unlocks your UK calls, texts and up to 12 GB of your UK data a month.
- Three only charges on days you use your phone, but your Spend Cap has to be high enough to cover the daily charge or pass, or roaming can stop.
Graba SIM Switzerland eSIM
- 4 plan sizes for Switzerland, from 1GB, 7 days to 20GB, 30 days, each a one-off price.
- Runs on Sunrise, Salt in Switzerland, with 5G where the network offers it.
- Data only. Your Three SIM stays on for calls and texts, so bank codes still reach you in Switzerland.
Three in Switzerland: questions
How much does Three roaming cost in Switzerland?
£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. For a trip, that is 3 days: £5.00 (3-day pass); 7 days: £12.00 (7-day pass); 14 days: £24.00 (14-day pass).
Is a travel eSIM cheaper than Three in Switzerland?
It depends on the trip. Comparing Three’s lowest published option with a Graba SIM plan of about 0.7 GB a day: 3 days, the eSIM is £1.01 less; 7 days, the eSIM is £8.01 less; 14 days, the eSIM is £18.51 less. Three’s price also includes your UK calls, texts and up to 12 GB of your UK data.
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.