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Best eSIM for Switzerland in 2026: 6 providers compared

A weekend in Zurich, a week of skiing in Zermatt, a work trip to Geneva or a train crossing the country from one lake to the next: in Switzerland you need data for SBB timetables, tickets, hiking maps and payments. A Switzerland eSIM installs before you leave, activates as you cross the border and spares you the operator shop, where a Swiss prepaid SIM asks for ID at the counter. You keep your home SIM for calls and texts.

The Swiss trap is the border: the country is in neither the European Union nor the EEA, so the EU roaming rules do not apply. Some European plans include Switzerland anyway, others do not, and a phone left on a motorway rest stop near Geneva can latch onto a Swiss network all by itself. We ran 6 providers through the same grid: price per GB, network used on the ground (Sunrise, Salt or Swisscom), coverage in cities, in the mountains and on trains, support, how simple the app and the activation are, and plan flexibility. The ranking first, then each offer in detail.

Rony
September 9, 2026 · 14 min read
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Best eSIM for Switzerland in 2026: 6 providers compared
The eSIMrat verdict#1 of 6
voilà eSIM

voilà eSIM: the lowest price per GB, on Sunrise and Salt

8.2/10

The lowest price per GB of the six, at €0.63/GB, with two Swiss networks stated (Sunrise and Salt), 5G depending on the area, a two-minute install from an app that is easy to use and human support reachable 24/7. It is the best value for money in the comparison.

Price per GB : €0.63/GBNetwork : Sunrise, Salt
See the voilà eSIM offer

How we ranked these eSIMs

Each eSIM is scored on six criteria, weighted for Switzerland. Price per GB and network coverage weigh the most. Switzerland is one of the best-covered countries in Europe, including in Alpine valleys and along the SBB lines, as the nPerf coverage map shows, and its mobile speeds sit regularly near the top of Ookla's Speedtest Global Index. Three operators share the ground: Swisscom, Sunrise and Salt. The real difference is therefore price, and whether you know which network you land on. The scores are our editorial opinion, not an average of customer reviews.

  • Price per GB25 %

    Cost per gigabyte on each provider's cheapest plan, excluding one-off promotions.

  • Network coverage25 %

    Signal in Zurich, Geneva, Bern and Lausanne, on SBB trains, in tunnels and in Alpine valleys.

  • Reliability15 %

    Connection stability, the partner operator's track record and the provider's reputation.

  • Support15 %

    Channels available, hours, human or automated answers.

  • Activation and app10 %

    How simple the install is, how clear the app is, data usage tracking.

  • Plan flexibility10 %

    Choice of volumes and durations, unlimited, top-ups, tethering.

On these criteria, voilà eSIM comes out on top: it has both the lowest price per GB in the comparison (€0.63/GB) and two stated Swiss networks, plus a clear app and human support around the clock. Esimzon takes second place, a cent behind per GB, because it also names Sunrise and Salt and sells the cheapest unlimited. Ubigi is third, very slightly cheaper per GB than Esimzon, but without saying which network it runs on.

Scores are the opinion of the eSIMrat editorial team, based on the criteria above, not customer reviews. eSIMrat earns a commission on links to its partners, which does not affect the ranking.

The eSIM ranking for Switzerland

The 6 eSIMs compared, from the best-scored to the lowest. The price per GB shown is that of each provider's cheapest plan per gigabyte, here a 50 GB over 30 days at voilà eSIM, Ubigi and Airalo: a small one-week plan costs two to four times more per GB. For Yesim it comes from a one-day mini plan, its real travel plans sit around €0.93 per GB.

ProviderPrice per GBNetworkScore
  1. 1voilà eSIMvoilà eSIM€0.63/GBSunrise, Salt8.2/10
  2. 2EsimzonEsimzon€0.70/GBSunrise, Salt7.7/10
  3. 3UbigiUbigi€0.68/GBLocal networks7.6/10
  4. 4AiraloAiralo€0.82/GBLocal networks7.2/10
  5. 5YesimYesim€0.92/GBLocal networks7.0/10
  6. 6SailySaily€1.65/GBLocal networks6.5/10

Prices checked on September 9, 2026 on the providers' sites. eSIMrat partners' prices come from the comparator and refresh on every build.

Every Switzerland eSIM in detail

  1. voilà eSIM

    1. voilà eSIM

    8.2/10
    €0.63/GBSunrise, SaltData plans, 1 to 50 GB, 7 to 30 days

    The lowest price per GB, Sunrise and Salt stated

    voilà eSIM combines the two things that matter in Switzerland: the lowest price per GB in the comparison, at €0.63/GB on the 50 GB plan, and two stated networks, Sunrise and Salt, on the same eSIM. The phone switches to whichever works best, which shows most in Alpine valleys and on train lines, where coverage changes every few kilometres. The plan page states 3G, 4G, LTE and 5G depending on the local operators, and tethering is unlimited.

    The rest of the range follows: 10 GB at €7.90, 20 GB at €15.10, up to 50 GB over 30 days, with no commitment. Even the small one-week 1 GB, at €1.10, stays reasonable for a day trip to Geneva. The ESIMRAT code gives 5% off, on the promo codes page, which widens the value for money gap further.

    It is also the easiest to get started with: the eSIM installs in two minutes from an app that is easy to use, with top-ups and usage tracking in the same place, and human support answers 24/7. Useful on a Sunday evening in Zermatt, long after the operator shops have closed.

    Pros

    • The lowest price per GB in the comparison, on 50 GB
    • Sunrise and Salt stated on the same eSIM, 5G depending on the area, unlimited tethering
    • eSIM simple to install, app easy to use, human support 24/7

    Cons

    • No unlimited plan
    • Durations capped at 30 days on this destination
    See the offer
  2. Esimzon

    2. Esimzon

    7.7/10
    €0.70/GBSunrise, SaltData plans 1 to 15 GB and unlimited from 1 to 30 days

    The cheapest unlimited, two named networks

    Esimzon is a prepaid reseller that states its operator on every plan: here Sunrise and Salt, like voilà eSIM, and Sunrise alone on the unlimited plans. With voilà eSIM, it is the only provider here that tells you which Swiss network you will land on before you pay.

    Its real argument is unlimited: €48.15 for 30 days, the cheapest of the five on offer, or €1.60 a day, and a single unlimited day at €3.44 for a return trip to Basel. On data plans, its price per GB drops to €0.70/GB on the 10 GB, a cent away from voilà eSIM and Ubigi.

    The limits: the data catalogue stops at 15 GB, prices are shown in dollars on its site (the euro follows the day's rate) and support runs by email or chat, in English.

    Pros

    • The cheapest 30-day unlimited in the comparison, at €48.15
    • Sunrise and Salt named on every plan, unlimited day at €3.44

    Cons

    • Data catalogue capped at 15 GB
    • Prices shown in dollars, support in English
    See the offer
  3. Ubigi

    3. Ubigi

    7.6/10
    €0.68/GBLocal networksData plans, 3 to 50 GB, and unlimited 7 or 30 days

    50 GB at a good price, euros and French support

    Ubigi belongs to Transatel, a subsidiary of the NTT group. In Switzerland it is strictly the second best price per GB in the comparison, €0.68/GB on its 50 GB plan, a cent below Esimzon, but it loses a place because it does not state which Swiss operator it uses. Prices are shown in euros, top-ups happen in the app and support answers by ticket, in French.

    Its 10 GB over 7 days at €9 is one of the best deals here for a ski week, and its 30-day unlimited at €59 holds up without beating Esimzon's. It does not go below 3 GB, so there is no mini plan for a single day.

    Pros

    • Second best price per GB, on a 50 GB plan
    • Prices in euros, top-ups in the app, ticket support in French

    Cons

    • Swiss operator not stated before purchase
    • No plan below 3 GB
    See the offer
  4. Airalo

    4. Airalo

    7.2/10
    €0.82/GBLocal networksData plans, unlimited, regional and global

    The most complete app, 3-day unlimited at €10.50

    Airalo, the market pioneer, has the most complete app of the six, with top-ups and usage tracking, and a regional Europe plan that covers Switzerland alongside France and Italy. Handy if you head down from Zurich to Milan or do a return trip from Lyon in the same week.

    Its price per GB drops to €0.82/GB on the 50 GB plan, fourth in the comparison. Its 3-day unlimited at €10.50 is the cheapest of all for a weekend, and the 7-day one at €22.50 is decent, but over 30 days it climbs to €60.50, above Esimzon and Yesim. It does not state the Swiss operator for this destination, and its support, in English, can be slow.

    Pros

    • 3-day unlimited at €10.50, the cheapest for a weekend
    • Complete app, built-in top-ups, regional Europe plan

    Cons

    • Swiss operator not stated before purchase
    • 30-day unlimited at €60.50, support in English
    See the offer
  5. Yesim

    5. Yesim

    7.0/10
    €0.92/GBLocal networksData plans up to 30 GB, unlimited from 1 to 30 days

    Unlimited sold day by day, reusable eSIM

    Yesim is a Swiss provider, which gives it no privilege on the country's networks: like the other resellers, it does not state which operator it uses. Its strength is flexibility: unlimited is sold day by day, from €3.50 for 24 hours to €57 for a month, so you pay exactly the length of your stay, six days at €21 for instance.

    Watch the price per GB shown, €0.92/GB: it comes from a 0.49 GB mini plan valid for one day, useful as a stopgap, not for a stay. On a real travel plan, its 30 GB works out at around €0.93 per GB, which puts it fifth.

    The eSIM can be reused from one trip to the next, which avoids a fresh install every time you leave. On the other side, support is chat only.

    Pros

    • Unlimited sold day by day, from €3.50 for 24 hours to €57 a month
    • eSIM reusable from one trip to the next, plans up to 30 GB

    Cons

    • Swiss operator not stated before purchase
    • Its lowest price per GB comes from a one-day mini plan, chat-only support
    See the offer
  6. Saily

    6. Saily

    6.5/10
    €1.65/GBLocal networksData plans 1 to 20 GB, unlimited 30 days

    Ad and tracker blocker, 24/7 chat

    Saily is the eSIM from Nord Security, the maker of NordVPN. The app is simple, with an ad and tracker blocker and built-in web protection, and chat answers around the clock in English. On a hotel or station public network, that is a real plus.

    The price is much less appealing: €1.65/GB on the 20 GB plan, the highest price per GB in the comparison, more than double voilà eSIM's. Its data catalogue stops at 20 GB, it offers a single unlimited plan, 30 days at €63.99, the most expensive of the five, and it does not state the Swiss operator before you buy.

    Pros

    • Built-in ad and tracker blocker, 24/7 chat
    • Simple app, short one-week plans

    Cons

    • The highest price per GB in the comparison, more than double the first
    • A single unlimited plan, the most expensive of the five, data catalogue capped at 20 GB
    See the offer

Which Switzerland eSIM for your profile?

The eSIM we recommend for each kind of traveller.

  • voilà eSIM
    Best value for moneyvoilà eSIM€0.63/GB, the lowest price per GB, with Sunrise and Salt stated and human support 24/7.
  • Esimzon
    A month without countingEsimzon€48.15 for 30 days of unlimited, €1.60 a day, the cheapest in the comparison.
  • Airalo
    Weekend in Zurich or BaselAiraloThree days of unlimited at €10.50, without buying GB you will not use.
  • Yesim
    An awkward stay lengthYesimUnlimited is paid day by day, six days cost €21, no more and no less.
  • Ubigi
    A ski weekUbigi10 GB over 7 days at €9, in euros, with ticket support in French.
  • voilà eSIM
    Cross-border day tripsvoilà eSIMThe small 1 GB at €1.10 covers a day in Geneva without touching your home plan.

Does your European plan cross the Swiss border?

That is the first thing to check, and the answer depends on your carrier. Switzerland is in neither the European Union nor the European Economic Area: the EU roaming regulation does not apply there, and nothing obliges a carrier to include it. In practice, many do anyway. The Forfait Free 5G+ in France, for instance, counts Switzerland among its included destinations, with a 35 GB monthly allowance; the full list is in our article on the countries included with Free Mobile. Orange, SFR and Bouygues place Switzerland either in the Europe zone or in a paid option, depending on the plan.

Two reflexes before you go. Open your account and look at your plan's exact roaming zone, not the neighbouring plan's. And remember the network does not stop at customs: near Geneva, Basel or in the Jura, a phone can latch onto a Swiss mast from French soil and bill out-of-plan roaming without you having crossed anything. If your plan does not include Switzerland, turn off data roaming on your home line and let the eSIM do the work.

eSIM or Swiss prepaid SIM card?

A Swiss prepaid card remains an option: Swisscom, Sunrise and Salt sell them in shops, stations and airports. Two constraints. Swiss law requires every prepaid line to be registered to an identified person, so passport or ID card at the counter, form included. And the rates are those of the most expensive mobile market in Europe: around twenty francs just for the card and its initial credit, before a single gigabyte.

A travel eSIM is bought online, installs before you leave and costs, in this comparison, between €0.63 and €1.65 per GB. You keep your home line for calls and texts, with no counter and no ID to show. Our rule: eSIM for a stay, a ski season or cross-border day trips, Swiss prepaid card only if you need a Swiss number for verification texts.

What to check on your phone before buying

Two conditions: an eSIM-compatible and carrier-unlocked phone. iPhones from the XR on, plus recent Pixel, Galaxy S and other models, qualify; the full list is on our eSIM-compatible phones page. A phone bought subsidised from a carrier may still be locked: ask for the unlock before you go.

Once the eSIM is installed, keep your home SIM active for calls and texts, turn off its data roaming, and switch on the Switzerland eSIM's roaming when you arrive. Cities, motorways and the main SBB lines are very well covered, including most tunnels; steep valleys and high-altitude hiking routes still have gaps, so download your maps offline. Every plan in the Switzerland comparator is sold by providers that show compatibility before you buy. And if your next trip leaves Western Europe, the same comparison exists for the best eSIM for Albania and the best eSIM for Turkey.

Frequently asked questions

What is the best eSIM for Switzerland?
On our criteria, voilà eSIM: it has both the lowest price per GB in the comparison, at €0.63 on its 50 GB plan, and is one of only two offers to state its Swiss networks, Sunrise and Salt. Add an eSIM that is simple to install, an app that is easy to use and human support 24/7. For unlimited, Esimzon is the cheapest over 30 days, at €48.15, and Airalo over three days, at €10.50.
How much does an eSIM for Switzerland cost?
Between €0.63 and €1.65 per GB depending on the provider, on the large 30-day plans. A small one-week plan costs two to four times more per gigabyte. Unlimited is paid by the day: about €1.60 a day over a month from the cheapest provider, €3.44 for a single day.
Is Switzerland included in EU roaming?
Not by law. Switzerland is in neither the European Union nor the EEA, so the EU roaming regulation does not apply. Many European carriers include it anyway: Free Mobile in France covers Switzerland in its 5G+ plan with a 35 GB monthly allowance, while Orange, SFR and Bouygues place it in the Europe zone or in a paid option depending on the plan. Check your plan's exact roaming zone in your account before you travel.
Why does my phone catch a Swiss network from France?
Because masts do not stop at the border. Near Geneva, Basel, in the Jura or in Haute-Savoie, a phone can latch onto a Swiss relay stronger than the nearest French one, and roaming is then billed at Swiss rates even though you never left France. Two fixes: lock network selection manually to a domestic carrier, or turn off data roaming on your home line and use a Switzerland eSIM.
Do you need ID for a SIM card in Switzerland?
For a Swiss prepaid card, yes: the law requires every line to be registered to an identified person, so you must show a passport or ID card at the point of sale. A travel eSIM is bought online before you leave, with no registration and no counter, and activates by itself when you arrive.
Does an eSIM work on trains and in the mountains in Switzerland?
Yes in the vast majority of cases. The main SBB lines, motorways and most tunnels are covered, and ski resorts are covered very well. The gaps are in steep valleys, on high-altitude trails and in some secondary tunnels. An eSIM that uses two networks, like voilà eSIM with Sunrise and Salt, limits the damage, but download your hiking maps offline anyway.
Author
Rony

A travel obsessive, I built eSIMrat to share the best connectivity deals: the most reliable option at the best price, so you can leave with a clear head and make every trip the best it can be.

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