eSIM or EU Roaming: What to Choose for the Czech Republic?
When French Roaming is Enough
Free European roaming (since 2017) covers the Czech Republic. For a 1-week stay with moderate usage, your French plan is probably enough. Check your quota in your carrier's customer area.
When an eSIM is Recommended
- Stay of 2+ weeks: risk of exhausting roaming quota
- Heavy usage: streaming, video calls, hotspot
- Economy plan: Free 2€, some MVNOs with little roaming
- Regular stays: fair use clause after 4 months
Network Coverage in the Czech Republic
The Czech Republic has excellent 4G/5G coverage (99%) thanks to three major carriers:
| Carrier |
Coverage |
5G |
Used by |
| O2 Czech Republic |
99% |
Yes |
GoMoWorld, Airalo |
| T-Mobile Czech Republic |
98% |
Yes |
LinkeSIM |
| Vodafone Czech Republic |
97% |
Yes |
Holafly, Saily |
Coverage by destination
- Prague: perfect 4G/5G throughout the capital
- Brno, Ostrava, Plzeň: excellent coverage in major cities
- Český Krumlov: good coverage in the historic town
- Karlovy Vary: excellent coverage in the spa town
- Rural areas: variable in some remote villages
How to Install Your Czech Republic eSIM
- Purchase your plan (QR code received by email in 2 min)
- Install 24-48h before departure from your WiFi
- Activate upon arrival in the Czech Republic (timer starts)
- Keep your home SIM for calls and texts
Compatibility: iPhone XS+, Samsung S20+, Pixel 3+, Xiaomi 12+, OnePlus 8+
Best Czech Republic eSIM 2026
<BlogSummaryTable
title="Top 5 Czech Republic eSIM 2026"
countryCode="CZ"
countrySlug="czech-republic"
plans={[
{
rank: 1,
providerId: "gomoworld",
data: "10 GB",
duration: "30 days",
price: "$7",
highlight: "Best value for money",
promoCode: "ESIMP",
},
{
rank: 2,
providerId: "linkesim",
data: "5 GB",
duration: "30 days",
price: "$5",
highlight: "Lowest price",
},
{
rank: 3,
providerId: "airalo",
data: "5 GB",
duration: "30 days",
price: "$8",
highlight: "Global leader + 5G",
promoCode: "ESIMP15",
},
{
rank: 4,
providerId: "holafly",
data: "Unlimited",
duration: "5 days",
price: "$20",
highlight: "Unlimited data + hotspot",
},
{
rank: 5,
providerId: "saily",
data: "3 GB",
duration: "30 days",
price: "~$6",
highlight: "NordVPN included",
promoCode: "ESIMP",
},
]}
/>
Why these providers?
- GoMoWorld: O2 Czech Republic network (99%), code ESIMP (-10%)
- LinkeSIM: cheapest, perfect for small budgets
- Airalo: global leader (8M+ users), code ESIMP15 (-15%)
- Holafly: unlimited + hotspot, ideal for families
- Saily: NordVPN integrated for public WiFi
Conclusion
For most travelers (1-2 weeks, moderate usage), check your French roaming quota first.
If you opt for an eSIM: GoMoWorld 10 GB at ~$7 with code ESIMP offers the best value for money.
For heavy users: Holafly unlimited eliminates any stress.
Czech Republic eSIM FAQ