We show a saving only when roaming would genuinely cover your whole trip.
UK → Switzerland · roaming vs eSIM
Compare eSIMs for Switzerland.
Compare what your UK network charges to roam in Switzerland with travel eSIMs sized for your trip. See the hotspot rules, speed caps and fair-use limits before opening checkout.
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Hotspot rules, speed caps and fair-use limits beside every plan.
See where each number came from and when we checked it.
The Switzerland guide · updated 23 Sept 2026
Short answer: check your UK plan, because Switzerland is the one European country some networks leave out.
EE, O2, Vodafone, Three, VOXI and Tesco Mobile all put Switzerland in their Europe zone, so it costs the same as Spain or France on those networks. giffgaff's EU roaming excludes it, and we could not confirm it on iD Mobile, SMARTY or Sky, so on those four you should check before you travel rather than assume. If your network charges a daily fee, or leaves Switzerland out altogether, an eSIM bought before you fly is usually cheaper. The worked costs below price both.
- Local networks
- Swisscom, Sunrise and Salt. Nomad lists Salt and Sunrise, and Airalo lists Sunrise.
- Not in the EU
- Switzerland is outside the EU and the EEA, so nothing obliges a UK network to include it. Most do anyway; giffgaff's EU list doesn't.
- Trains and tunnels
- Coverage along the main lines is good, but long tunnels and side valleys drop out. Download tickets and maps before you set off.
- Mountains
- Ski areas and high passes rely on Swisscom more than the other two. Check which network an eSIM uses if you're heading above the treeline.
- Borders
- Near Basel, Geneva or Lugano your phone can hop onto a French, German or Italian network. Those are in the same Europe zone, so the terms don't change.
What your UK network charges in Switzerland
Switzerland is in every UK network's Europe zone. Some networks include it in your plan; others charge a daily fee or sell passes. Every row below is priced for your trip in the calculator above and links to the page we read it on.
| Network | How Switzerland is charged | Worth knowing | Source |
|---|---|---|---|
| EE | EE Europe roaming: £2.72 a day, £16.50 for 7 days or £30 for 15 days | For plans taken out or upgraded from 7 July 2021. Uses your UK allowance in Switzerland, up to a 50GB fair-use ceiling. On an older plan, check the EE app. EE's own price guide lists Switzerland with the EU and EEA, so no rest-of-world pass is needed. | EE mobile price guide ↗checked 25 Aug 2026 |
| O2 | O2 Europe Zone: included, up to 25GB | Pay Monthly plans use their UK allowance in Switzerland at no extra cost. Past 25GB of data abroad, you need to buy a Bolt On. | O2 Europe Zone roaming ↗checked 10 Sept 2026 |
| Vodafone | £2.75 a day, or a European Roaming pass: £16 for 8 days, £21 for 15 days | Applies if your plan doesn't already include Europe. The passes cover 52 destinations, and Vodafone's 25GB roaming limit applies. | Vodafone roaming Extras ↗checked 10 Sept 2026 |
| Three | Go Roam in Europe: £2 a day, or passes from £5 for 3 days | Passes cost £5 for 3 days, £12 for 7 and £24 for 14, and let you use up to 12GB of your UK data abroad. | Three Go Roam passes ↗checked 10 Sept 2026 |
| iD Mobile | Check iD Mobile's roaming page for Switzerland | iD sells Roam Beyond data passes for some destinations outside Europe. We couldn't confirm which applies here, so check before you rely on it. | iD Mobile roaming guidance ↗checked 10 Sept 2026 |
| Sky Mobile | Check Sky's destination list for Switzerland | Roaming Passport Plus costs £2 on each day you use it in the destinations Sky covers. We couldn't confirm this one. | Sky Roaming Passport Plus ↗checked 25 Aug 2026 |
| giffgaff | Check giffgaff's roaming page for Switzerland | giffgaff sells fixed-price travel data add-ons for some destinations outside the EU. Buy one before you use any data, because standard roaming rates apply without it. | giffgaff roaming checker ↗checked 10 Sept 2026 |
| SMARTY | Outside the EU, you need an out-of-plan add-on | SMARTY charges roaming outside the EU from an out-of-plan add-on balance, at the rates in its price guide. Plan on Wi-Fi or an eSIM for data. | SMARTY roaming guidance ↗checked 10 Sept 2026 |
| VOXI | European Roaming Pass: £2.60 for 1 day, £4.80 for 2, £15 for 8, £20 for 15 | The pass starts when you buy it. You get your UK allowance or 20GB, whichever is smaller, and Endless social and video don't apply abroad. | VOXI European Roaming Pass ↗checked 10 Sept 2026 |
| Tesco Mobile | Home From Home: included on pay monthly and pay as you go | Covers 48 destinations, including every EU country, with no separate data cap. A fair-use policy applies only if you spend more time abroad than in the UK. | Tesco Mobile Home From Home ↗checked 10 Sept 2026 |
Roaming versus an eSIM, priced for a real trip
Everyday use is about 0.8GB a day, so a week needs 6GB and a fortnight 12GB. Roaming figures come from the same published charges the calculator uses; eSIM figures are the cheapest single plan from each provider that covers the trip, live from Nomad. Klook is left out because it shows prices only on its own page.
7 days · plan for 6GB
UK roaming
- O2Included
- Tesco MobileIncluded
- Three£12.00
- VOXI£15.00
- Vodafone£16.00
- EE£16.50
Travel eSIM
- Nomad · 10GB · 30 days≈ £15.38live price, converted from USD · see plan ↗
14 days · plan for 12GB
UK roaming
- O2Included
- Tesco MobileIncluded
- VOXI£20.00
- Vodafone£21.00
- Three£24.00
- EE£30.00
Travel eSIM
- Nomad · 20GB · 30 days≈ £18.75live price, converted from USD · see plan ↗
Roaming figures assume you roam every day of the trip and the pass or daily fee covers your data need; the calculator above lets you change both. Nomad prices are converted from US dollars at a rounded rate and marked as estimates.
The eSIM providers we compare for Switzerland
Four providers appear in the comparison above. Saily and Nomad send us live prices, Airalo's are checked by hand, and Klook shows its prices only on its own page. Links we could earn a commission on are marked as sponsored in the page source.
Saily on local partner networks
Quotes real pounds, so the price you see is the price you pay. Saily says it doesn't restrict hotspot use, though your phone or the local network may.
Watch out: Check when the plan starts counting down before you install it.
Saily Switzerland plans ↗We may earn a commission on this link.
Nomad on Salt and Sunrise
Prices in US dollars, which we convert at a rounded Bank of England rate, so your card may charge a little more. Nomad lists Salt and Sunrise for Switzerland and says its eSIMs support hotspot use.
Watch out: Nomad plans have to be activated within 60 days of purchase, so don't buy months ahead.
Nomad Switzerland plans ↗We may earn a commission on this link.
Airalo on Sunrise
We have no affiliate relationship with Airalo and list it anyway. Its Switzerland eSIM lists Sunrise as the main network.
Watch out: If you pick an unlimited plan, check its daily full-speed limit before you buy.
Klook on the network named on Klook's page
Klook's price changes with every combination of days and data, so we don't show one. We haven't confirmed a single Klook product page for Switzerland, so the link opens Klook's own search for it.
Watch out: You get a QR code on a voucher. Install it on Wi-Fi before you travel and check when the countdown starts.
Klook Switzerland plans ↗We may earn a commission on this link.
In the Europe zone, but not in the EU
UK networks build their own Europe zones, and most of them put Switzerland in alongside the EU countries. EE lists it with the EU and EEA in its price guide, O2 includes it in the Europe Zone, Vodafone counts it among the destinations its European passes cover, and Three, VOXI and Tesco Mobile list it too.
giffgaff is the clear exception: Switzerland isn't on its EU roaming list, so your allowance doesn't travel there and you'd need one of its travel data add-ons instead. We couldn't confirm Switzerland on iD Mobile, SMARTY or Sky Mobile either, so treat those as unknown until you've checked your own account.
Trains, tunnels and mountain coverage
Swiss rail is where most visitors use their phones, and the main lines are well covered. Long base tunnels and the deeper valleys are not, so save your tickets offline rather than relying on a QR code loading as the inspector arrives.
Higher up, coverage thins out. Swisscom has the widest reach in the mountains, and travel eSIMs usually ride on Salt or Sunrise, so if you're skiing or walking above the villages, expect gaps and download your maps first.
Why a local Swiss SIM rarely makes sense
Swiss prepaid SIMs must be registered with ID, and Switzerland is an expensive place to buy data: a tourist bundle typically costs several times what the same allowance costs on a travel eSIM.
For a week or two, the realistic choice is between your UK network's Europe terms and an eSIM. The comparison above prices both for the trip you're actually taking.
Setting up for Switzerland
- 01Check your UK plan first
If your network includes Switzerland and its roaming cap covers your trip, you may not need an eSIM at all. Your network's app shows both.
- 02Buy and install at home
Install the eSIM on home Wi-Fi before you travel and keep the new line switched off until you land. Save the QR code or setup details in case you need to reinstall.
- 03Turn off data roaming on your UK line
Leave your UK SIM on so calls and bank texts still reach you, but switch its data roaming off so it can't run up charges.
- 04Make the eSIM your data line
Set the eSIM as the line for mobile data, turn off automatic data switching, and turn on data roaming for the eSIM only.
Switzerland questions, answered
Is Switzerland included in UK Europe roaming?
On EE, O2, Vodafone, Three, VOXI and Tesco Mobile, yes: Switzerland sits in the same Europe zone as EU countries. giffgaff's EU roaming excludes it, and we couldn't confirm it on iD Mobile, SMARTY or Sky Mobile, so check those before you travel.
Does giffgaff work in Switzerland?
Your phone will connect, but Switzerland isn't on giffgaff's EU roaming list, so your allowance doesn't cover it. Buy one of giffgaff's travel data add-ons before you use any data, or use an eSIM.
What does EE charge for roaming in Switzerland?
EE's price guide lists Switzerland with the EU and EEA, so its Europe terms apply: on plans taken out or upgraded from 7 July 2021, £2.72 for each day you use your phone, or £16.50 for 7 days and £30 for 15.
How much data do I need for a week in Switzerland?
At our everyday estimate of about 0.8GB a day, around 6GB. Mostly maps, tickets and messages needs about 3GB; heavy video or hotspot use, about 14GB.
Will an eSIM work on Swiss trains and in the mountains?
On the main rail lines, yes. Travel eSIMs here usually run on Salt or Sunrise, which cover the cities and valleys well but thin out on high passes and in long tunnels, so download maps and tickets before you set off.
Where the numbers come from
How we work this out.
On EE we price roaming for all 26 destinations. Across the other nine networks we price 145 more network-and-destination combinations from published charges; everywhere else we send you to your network's own checker instead of guessing. Saily and Nomad send us their prices directly, covering 26 destinations. Airalo prices are checked by hand for 5 of them and carry the date we last looked. Klook never shows a price here — we send you to their own page instead of guessing one.
UK roaming rules Checked 25 Aug 2026Hand-checked prices & calls/texts labels Checked 23 Sept 2026Exchange rates (rounded) Checked 23 Sept 2026Price refresh rule Rechecked on a weekly scheduleLive prices from Saily and Nomad working · 26 destinations
Setting up before you fly
Keep your UK number. Turn off its data.
- 01Install at home
Buy before departure, install on Wi-Fi and keep the new line switched off until arrival.
- 02Choose the data line
Set the travel eSIM as Mobile Data and disable data switching so your UK SIM cannot take over.
- 03Keep texts available
Leave the UK line on for banking texts if needed, but turn off its data roaming and avoid chargeable calls.
Common questions
Things worth checking first.
Do you work out what my own network would charge?
On EE, for all 26 destinations. Across the other nine networks, for 145 more network-and-destination combinations. Everywhere else we send you to your network’s own checker rather than invent a number — usually because the network has stopped publishing a rate, or prices it against your individual account. Pick the tariff that applies to you and we work out the daily fees, the cheapest combination of passes, or the per-megabyte rate from your network’s published charges. We only claim a saving when roaming would actually cover your whole trip and everything else you asked for.
Are these prices live?
Saily’s and Nomad’s are — they come from each provider’s own feed and are marked “Live price”. Saily quotes real pounds; Nomad quotes US dollars, which we convert. Airalo prices are checked by hand and carry the date we checked them. They are already in pounds, so they need no conversion. Klook never shows a price here, because we cannot read one reliably; that link takes you to their own page.
Why does one provider show several plans?
Because more than one can fit your trip — a bigger allowance, a longer run before it expires, or unlimited data. We show each provider’s best few for your trip and tuck the rest — including any that cost more without giving you more — behind one “show more” button. Pin up to three to compare side by side.
Where do I find hotspot and speed limits?
Open “Hotspot, speed & other limits” on any plan. It covers whether you can use the phone as a hotspot, what happens when you hit a speed cap, what the fair-use rules are, when the plan starts counting down, and which local network you will be on. If it says “check plan”, the provider’s own wording was not clear enough for us to promise you either way.
Can I make normal calls on these?
Usually not. Most travel eSIMs give you data only — WhatsApp and FaceTime work, but your phone number does not. If you need real calls and texts, answer “Yes” in the form and we will only recommend a plan that we have confirmed includes them.
Will an eSIM work on my phone?
Search for your exact model and we will check it against manufacturer guidance. Two things we cannot check for you: whether your phone is locked to a UK network, and which regional version you own — some models sold in certain countries have no eSIM at all. Confirm both before buying.
How many destinations do you cover?
26 destinations — Turkey, United States, Spain, France, Italy, Greece, Portugal, Germany, Netherlands, Ireland, Cyprus, United Arab Emirates, Thailand, Japan, Australia, Canada, Mexico, Morocco, Egypt, Indonesia, Switzerland, Poland, Croatia, India, Vietnam, Sri Lanka — and all 10 UK networks. Saily and Nomad price every destination live; 5 of them also carry hand-checked Airalo prices.