From Prague Castle and the Charles Bridge to the fairy-tale town of Český Krumlov and the spa towns of Karlovy Vary, the Czech Republic is easy to explore with a smartphone. You will use data for maps, public transport tickets, Bolt and Uber, restaurant bookings and translation.
If your home carrier is outside the EU, roaming can be expensive. A Czech Republic eSIM is a simple alternative: buy online, install it before you go and connect as soon as you land in Prague. Simhop compares current Czech plans below.
Networks and coverage in the Czech Republic
The Czech Republic has three mobile operators: O2 CZ, T-Mobile CZ and Vodafone CZ. All three provide good 4G coverage across the country, and 5G is available in Prague and larger cities.
Coverage is strong in Prague, Brno and along major highways. Most of the Prague metro has mobile signal, including in many tunnels. Expect weaker signal in some mountain areas like the Krkonoše and Šumava and in deep river valleys.
Which data plan do you need for the Czech Republic?
For a few days in Prague, 3 GB is usually enough. A week with lots of sightseeing, navigation and photo uploads is more comfortable with 5 GB. Road trips through Bohemia and Moravia call for 10 GB or more. See How much data do I need? for details.
Combining Prague with Vienna, Budapest or Kraków? A Europe eSIM covers all of them, or add an Austria eSIM for the next leg.
Setup and travel tips for the Czech Republic
Check compatibility with our eSIM-compatible phones list, install the eSIM at home and turn it on when you arrive. Guides: iPhone and Android.
- If you drive, buy the electronic highway vignette online before you hit the motorway.
- Prague public transport tickets are available in the PID Lítačka app.
- The validity of most travel eSIMs starts when they first connect in the destination country.
FAQ: eSIM for the Czech Republic
Do I need an eSIM in the Czech Republic?
If you are visiting from outside the EU, an eSIM is usually much cheaper than roaming. EU residents can often roam on their home plan, but an eSIM still helps for longer stays.
Which network is best in the Czech Republic?
O2, T-Mobile and Vodafone all offer good coverage. T-Mobile and O2 are often rated slightly stronger in rural areas.
Is there mobile signal in the Prague metro?
Yes, most of the Prague metro has mobile coverage, including stations and many tunnels, so you can stay online on the go.
Do I need data for driving on Czech highways?
You need an electronic vignette, which you can buy online before you travel. Mobile data is also helpful for navigation and traffic updates.
When does my Czech eSIM validity start?
With most providers, the validity period starts when the eSIM first connects to a network in the Czech Republic, not when you install it.
