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Arjun K.
Bangalore, IN · Jun 2026
Perfect for Travel!
Used esima during my trip to Brno, and I couldn't be happier. The speeds were fantastic, even when streaming Netflix. The customer service was responsive, helping me with a query right away.
Customer reviews
91 verified reviews
4.9
Based on 91 reviews
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Olivia P.
Austin, US · Jun 2026
Fast and Reliable
I used esima while traveling from Prague to Karlovy Vary. The 4G connection was stable, and downloading maps was quick. Slight hiccup with the initial setup, but it worked perfectly for the rest of my trip.
Camila R.
Mexico City, MX · May 2026
Best eSIM for travelers
This eSIM made my trip to the Czech Republic so much easier. I could easily share data across devices, and the connection was strong even in crowded areas like Old Town. Highly recommend it to anyone traveling here!
James K.
Manchester, GB · May 2026
Mixed experience
While the installation was easy, I ran into some slow speeds when I ventured outside of Prague. In the city, everything was fast and reliable, but I wish I had better coverage in the more remote areas. Customer service was helpful when I reached out, though!
Charlotte F.
Montreal, CA · May 2026
Perfect for Prague!
The eSIM worked flawlessly during my trip to Prague. I just scanned the QR code upon landing, and within seconds, I had 5G speed! Streaming Netflix in the evenings was a breeze. Highly recommend it!
Megan H.
Cape Town, ZA · May 2026
Reliable but not super fast
Overall a good experience with esima in the Czech Republic. The setup was quick, but I noticed the speeds dipped a bit in some remote areas. Still, it was more reliable than roaming.
Emma T.
Edinburgh, GB · May 2026
Highly reliable service
I traveled all around the Czech Republic and the esima eSIM never let me down. Fast internet, smooth video calls, and customer service was friendly when I had a small question about setup. Will use again!
Ava M.
Melbourne, AU · Apr 2026
Great Value for Data
Using esima in the Czech Republic was convenient and cost-effective. The 4G speed was solid, and I had no issues making calls or using GPS. Just had a bit of trouble with the app at first, but customer service was quick to help.
eSIM vs roaming in Czech Republic
Typical home-carrier roaming
$10–$18
per day
Esima eSIM
$2.57
Flat rate
Most international carriers charge a daily roaming fee for Czech Republic, with the first gigabyte or two at full speed and throttling after that. Hotspot and tethering are often blocked or cost extra on roaming bundles from major networks.
The daily fee applies every day you use data, so a week-long trip adds up fast even if you only check maps twice. An esima eSIM gives you a flat data allowance at local-market pricing — you pay once, use it until it runs out, and hotspot is enabled by default.
No surprise bills three weeks after you return home, no throttling after the first gigabyte, no daily fee that resets at midnight whether you used data or not. If you are traveling with a laptop or a partner who needs to share your connection, the eSIM is the simpler option.
Real trips, real travelers
Built for travelers like you
Different trip, same eSIM — here is how it lands for the most common visitors to Czech Republic.
You are driving from Prague Castle to Karlštejn, then south to Hluboká and Český Krumlov. The eSIM keeps Google Maps live on highways and in every town center, and the PID Lítačka app works for your morning tram ride before you pick up the rental car. Coverage drops in the Šumava forest, but you downloaded offline maps the night before.
Castle-hopper
You are working from a café in Prague's Vinohrady district, then taking the train to Brno for a client meeting. The eSIM gives you hotspot for your laptop, and O2's 5G in both city centers handles video calls without lag. Czech Railways onboard Wi-Fi is too slow, so you use the eSIM for the two-hour ride.
Digital nomad
You are spending three days in Karlovy Vary, walking the colonnades and hiking the Slavkov Forest trails. The eSIM works throughout the spa district for restaurant lookups and Bolt rides back to your hotel. Coverage thins on forest trails, so you downloaded the Mapy.cz offline map before you left town.
Spa-town visitor
Apps you'll need data for in Czech Republic
The apps locals and travelers actually use — the ones that need real cell data, not just hotel Wi-Fi.
PID Lítačka
Prague metro, tram, and funicular mobile tickets with QR validation
DPMB Šalina
Brno tram and trolleybus mobile tickets with live validation
Bolt
Rideshare in Prague, Brno, and other major cities
Mapy.cz
Czech-focused maps and navigation with offline support
Liftago
Local taxi-hailing app in Prague and Brno
IDOS
Czech Railways and public transit timetables and tickets
How much data you'll burn per day
~50MB per day for text and voice messages, ~150MB per day if you make frequent voice calls, ~400MB per day with video calls.
Maps
~100-200MB per day for live navigation with Google Maps or Mapy.cz; less if you download offline maps for Prague, Brno, and Český Krumlov.
Rideshare
~5-10MB per ride request and tracking session with Bolt, Uber, or Liftago; ~50-80MB per day if you take multiple rides across Prague or Brno.
FAQ
Frequently asked questions
Does eSIM work in Český Krumlov?
Yes. Český Krumlov's old town has reliable 4G on O2, T-Mobile, and Vodafone. Coverage drops to 3G on Vodafone once you hike into the surrounding Šumava forest, and all three carriers have gaps on trails farther from town. Download offline maps before any forest walk.
Does the eSIM work on Prague metro?
Yes, on platforms. All Prague metro stations have cell service, so the eSIM works while you wait for trains. Coverage drops in the tunnels between stations. The PID Lítačka app for mobile tickets requires live data for QR validation, so activate your ticket before you descend to the platform.
How much data do I need for a week in Prague and Brno?
Plan for 3-5GB. PID Lítačka and DPMB Šalina apps for transit tickets use minimal data, but live navigation with Google Maps or Mapy.cz will consume 100-200MB per day. Add another 50-150MB per day for WhatsApp, restaurant lookups, and rideshare apps. If you are working remotely or streaming video, double that estimate.
Can I make WhatsApp calls in Czech Republic on this eSIM?
Yes. WhatsApp voice and video calls work over the eSIM's data connection on all three Czech networks. A 30-minute WhatsApp voice call uses roughly 20-30MB; video calls use 200-300MB for the same duration. Standard voice calls to Czech numbers require a separate voice plan or a VoIP app.
Does the eSIM work in Karlovy Vary?
Yes. Karlovy Vary spa district has full LTE on O2, T-Mobile, and Vodafone. Hiking trails in the Slavkov Forest west of town have spotty coverage on all carriers. If you are driving to Loket Castle or deeper into the forest, download offline maps before you leave the city center.
O2 vs T-Mobile coverage in Prague?
O2 Czech Republic has the widest 5G footprint in Prague's city center, from Old Town Square to Vinohrady. T-Mobile offers solid LTE across the same areas but fewer 5G zones. Both work well for navigation, transit apps, and rideshare. The eSIM hands off between carriers automatically, so you get whichever is stronger at your location.
Does Bolt work on this eSIM in Prague?
Yes. Bolt requires live data to request rides, track drivers, and process payments. The eSIM works with Bolt, Uber, and Liftago across Prague, Brno, and other major cities. Expect each ride request and tracking session to use 5-10MB.
Does the eSIM work on Czech Railways trains?
Yes. The eSIM works continuously on Czech Railways trains on the Prague-Brno-Ostrava corridor and most other mainline routes. Onboard Wi-Fi exists but is slow and drops frequently. The eSIM is better for work, video calls, or streaming. Coverage thins in tunnels and remote mountain sections.
Vodafone vs O2 coverage in Český Krumlov?
Both have reliable 4G in Český Krumlov's old town and around the castle. Vodafone drops to 3G faster than O2 once you hike into the Šumava forest. O2 and T-Mobile hold LTE longer but still have gaps on trails farther from town. The eSIM switches carriers automatically based on signal strength.
How much data does Google Maps use in Czech Republic?
Live navigation with Google Maps uses 100-200MB per day of active use — more if you reroute frequently or load satellite views. Mapy.cz, the popular Czech alternative, uses similar amounts. Download offline maps for Prague, Brno, and Český Krumlov before you start driving to cut data use by half.
Does the eSIM work in Bohemian Paradise (Český ráj)?
Yes, but with gaps. The Bohemian Paradise rock formations have LTE on O2 and T-Mobile, but Vodafone has dead zones near Hrubá Skála and Trosky Castle. Download offline maps and trail guides before you start hiking. Coverage is solid in Turnov and other gateway towns.
eSIM vs airport SIM in Prague?
An eSIM installs in two minutes via QR code before you leave home; an airport SIM requires finding the Vodafone or O2 store at Václav Havel Airport, waiting in line, and showing your passport. Pricing is similar for equivalent data allowances. The eSIM advantage is speed and the ability to install it before you board your flight.
Does the PID Lítačka app work on this eSIM?
Yes. PID Lítačka, Prague's official transit app for metro, tram, and funicular tickets, requires live data for QR validation. Offline tickets are not supported. The eSIM provides the connectivity you need to buy and validate tickets on the move. Each ticket purchase and validation uses less than 1MB.
Does the eSIM work in Brno's trams?
Yes. The DPMB Šalina app for Brno tram and trolleybus tickets needs live connectivity for validation, just like Prague's PID Lítačka. The eSIM works throughout Brno's tram network. Coverage is solid from the main station to Špilberk Castle and across the city center.
Can I use hotspot with this eSIM in Czech Republic?
Yes. Hotspot and tethering are enabled by default on esima eSIMs for Czech Republic. You can share your connection with a laptop, tablet, or travel partner's phone. No extra fee, no throttling on the first 5GB like some Czech carrier prepaid plans.
Need broader coverage?
Going further than Czech Republic? These plans include Czech Republic plus everywhere in between.
