Quick verdict: which Czech Republic eSIM to buy
For most Czech Republic trips, buy the Flysimio Czech Republic eSIM: it connects to O2 and Vodafone, two of the country's three networks, with 4G even inside the Prague Metro tunnels. It costs $5.95 for 5 GB / 30 days and $10.70 for 10 GB, against $12.50 and $16 at Nomad when we checked on October 29, 2026. Hotspot is included, and you get a full refund within 7 days if it is unused or has used less than 100 MB.
| Trip length | Recommended plan | Why |
|---|---|---|
| Long weekend in Prague | Flysimio 3 GB / 30 daysBuy$4.00 | Maps, Bolt or Uber and the Metro apps for a few days |
| 1–2 weeks (Prague + Český Krumlov) | Flysimio 5 GB / 30 daysBuy$5.95 | A week to ten days of maps, photos and messaging |
| 2–3 weeks, remote work or heavy use | Flysimio 10 GB / 30 daysBuy$10.70 | Hotspot for a laptop, video calls |
| Extended stay | Flysimio 20 GB / 30 daysBuy$23.65 | A month of heavier use |
Flysimio Czech Republic eSIM
Pick the plan for your trip · instant QR · 7-day refund
Flysimio Czech Republic eSIM plans
For a one- to two-week trip, the 5 GB / 30-day plan at $5.95 covers maps, messaging and social for Czech Republic. Every plan includes hotspot. Full live range (prices update hourly):
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1 GBBuy$1.43 | 7 days | $1.43 | $1.43/GB |
| 2 GBBuy$2.85 | 15 days | $2.85 | $1.43/GB |
| 3 GBBuy$3.75 | 15 days | $3.75 | $1.25/GB |
| 5 GBOur pickBuy$5.95 | 30 days | $5.95 | $1.19/GB |
| 10 GBBuy$10.70 | 30 days | $10.70 | $1.07/GB |
| 20 GBBuy$23.65 | 30 days | $23.65 | $1.18/GB |
Every plan: instant QR delivery, no physical SIM, and a 7-day money-back guarantee.
Czech Republic coverage: Prague and beyond
- Prague Metro (lines A, B, C): 4G in stations and throughout tunnels between stations — a genuine rarity among European metros.
- Český Krumlov: solid 4G across the historic centre, the castle, and the Vltava riverbank.
- Bohemian Switzerland National Park (Hřensko, Pravčická Gate): 4G at the main tourist sites; deep gorge hiking trails thin to 3G.
- Karlovy Vary spa zone: 4G throughout.
- The Prague–Brno D1 motorway: continuous 4G along the route.
Which networks does the Flysimio Czech eSIM use?
The Czech Republic has three mobile networks: O2, T-Mobile and Vodafone. The Flysimio eSIM connects to O2 and Vodafone, and your phone uses whichever has the stronger signal. A Czech prepaid SIM gives you a local number but means a shop visit; the eSIM is bought online, installed before you fly and leaves your home SIM in the phone for calls and texts.
Frequently asked questions
What is the best eSIM for the Czech Republic?
The Flysimio Czech Republic eSIM: it runs on O2 and Vodafone and costs $10.70 for 10 GB / 30 days, against $16 at Nomad when we checked on October 29, 2026. That covers two to three weeks of maps, transit apps and photos, with hotspot included.
Does the eSIM work on the Prague Metro?
Yes. All three Prague Metro lines (A, B, C) have 4G in stations and throughout tunnels between stations — most European metros don't manage in-tunnel coverage this well.
Is there coverage in Český Krumlov?
Yes. The historic centre, the castle, and the Vltava riverbank all have solid 4G.
Does this eSIM work in Bohemian Switzerland National Park?
Yes at Hřensko village and Pravčická Gate, the largest natural arch in Central Europe. Deep gorge hiking trails thin to 3G.
Can I use it in Vienna, Germany or the rest of Europe?
The Czech Republic eSIM covers the Czech Republic only. For a trip that continues to Vienna, Berlin or Budapest, the Flysimio Europe eSIM covers the Czech Republic and 30+ other countries on one plan.
What if the eSIM does not work for me?
You can get a full refund within 7 days of purchase if the eSIM is unused or has used less than 100 MB, so you can install it and check it connects first. If it genuinely fails on our side, we refund it in full after that too. Full terms are in our refund policy.
What currency does the Czech Republic use?
Czech koruna (CZK / Kč) — the Czech Republic is an EU member but has not adopted the euro. Most tourist venues accept card payments.
How much data do I need for a week in Prague?
For typical use — maps, messaging, and photos — 3 GB comfortably covers a long weekend, and 5 GB covers a full week to ten days.
Flysimio Czech Republic eSIM
$1.43 from · instant QR · 7-day refund
Sources & further reading
Maya Okafor
Senior Travel Connectivity Editor
Maya has tested eSIMs across 40+ countries over five years of full-time travel — from Tokyo subways to Patagonian backroads. She runs Flysimio’s hands-on network and speed testing.