Switzerland eSIM
data from $1.99.

If you are searching for an eSIM for Switzerland, buy a data only plan from $1.99 and install it before departure. Slashtel plans connect to Sunrise, Salt and Swisscom on 5G, with sizes from 1GB to 50GB and validity from 7 to 180 days. There is no local number, so your home SIM stays in place for calls and bank codes.

Choosing an eSIM for Switzerland

Match the plan to your trip length and data habits, check that your phone supports eSIM, and install before you leave. If you are asking which is the best eSIM for Switzerland for your own trip, the answer depends on how long you stay and how much you stream, map and share.

What matters when you compare options:

• Coverage on the main networks. Your phone should be able to use Sunrise, Salt and Swisscom, so you keep signal in cities, on rail routes and in ski resorts. The network is chosen automatically.
• Enough data. A short city break needs far less than a two week rail and ski trip with daily photo uploads.
• Validity. A plan must stay active for your whole trip. Choose 7, 15, 30 or 180 days to match your dates.
• Hotspot. Check that tethering is included if you want to share data with a laptop or a travelling companion.
• Installing before the trip. Set the eSIM up at home over wifi, then switch it on when you land. This avoids relying on airport wifi with a tired phone.

Data only means no local calls or SMS. Messaging apps work over data, and your home SIM can stay active for calls and bank verification codes.

Plans and prices for Switzerland

Plans run from 1GB to 50GB, with validity of 7, 15, 30 or 180 days, and prices start at $1.99. The table below shows the sizes with their price tokens. Prices shown are live from prices.

Short trips suit the smaller sizes. Longer stays, remote work and heavy photo sharing suit the larger ones. The 180 day option is useful if you return to Switzerland across a season or stay for a long period. Check the size and duration together before you buy, because a large plan with a short validity is not helpful if your trip runs longer.

Networks and coverage in Switzerland

Slashtel connects to Sunrise, Salt and Swisscom, the main Swiss mobile networks, with 5G available. Your phone selects the network automatically, so you do not need to change settings as you move between regions.

In practice this matters most on the move. Alpine rail journeys pass through valleys and tunnels where any network can drop for a stretch, and the automatic selection lets your phone use whichever signal is present. In Zurich and Geneva, city coverage is generally straightforward. In ski resorts, coverage varies with altitude and terrain, so download offline maps and lift information before you head up the mountain.

Keep a few habits that help on any network:

• Download maps, tickets and translations while you have wifi.
• Save your accommodation address and a screenshot of your booking.
• Expect short gaps in mountain tunnels and treat them as normal.
• Switch airplane mode on and off if data stalls, which forces a fresh network selection.

No network reaches every metre of every Alpine valley, so plan your day around offline copies of the essentials.

How much data you need

Most travellers do well with 1GB for a week, 2GB for two weeks and 3GB for a month, and heavier users should size up. These are the standard trip sizes for Switzerland.

• One week: 1GB for 7 days, enough for maps, messages and light browsing.
• Two weeks: 2GB for 15 days, a sensible step up for a rail trip with daily use.
• One month: 3GB for 30 days, for longer stays with regular but moderate use.
• Photo and video heavy trips: choose 5GB or 10GB, especially if you upload daily.
• Remote work or family hotspot use: 20GB or 50GB gives more room.

Maps, messaging and web browsing use little data. Video, cloud photo backup and hotspot tethering use much more. If you plan to stream on trains or share data with a laptop, go up a size rather than risk running out mid trip. You can top up later if you need more, but sizing generously at the start is simpler.

Install it before you fly

Install the eSIM at home over wifi, label it clearly, and switch it on when you arrive in Switzerland. Installation before travel means you land with working data and no need to find wifi at the airport.

A simple order of steps:

1. Buy the plan and follow the install guide for your phone.
2. Label the eSIM, for example Switzerland, so you can tell it apart from your home SIM.
3. Keep your home SIM as the line for calls and bank codes.
4. Set the Switzerland eSIM as the line for mobile data.
5. Turn on data roaming for the eSIM if your phone requires it for travel plans.
6. Switch the eSIM on after landing and wait for the network to connect.

For step by step instructions, see the guide to installing an eSIM on iPhone and Android. If you are unsure whether your handset supports eSIM, check is my phone eSIM compatible before buying.

Calls, texts and your home number

The Switzerland eSIM is data only, with no local number, no calls and no SMS. WhatsApp, FaceTime and other messaging apps work over the data connection, including voice and video calls.

Keep your home SIM active for ordinary calls and for bank verification codes. Set your home SIM as the default line for calls and texts, and the Switzerland eSIM as the line for mobile data. This way your number still receives codes while data comes from the local plan, and you avoid surprise charges from your home operator for data use abroad. Turn off data roaming on your home SIM if you want to be certain it does not use mobile data.

Questions travellers ask about Switzerland

Travellers usually want to know about data only use, messaging apps, hotspot rules, plan start, topping up and phone compatibility. The answers below cover those points, and the full plan list is above if you want to compare sizes before buying.

If you are still deciding, buy for your trip length first and your data habits second. A one week winter trip to a ski resort has different needs from a month of remote work in Zurich or Geneva, and the plans cover both ends of that range.