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Czech Republic eSIM for 7 days
$2.99
3 GB, valid 15 days on O2. Enough for maps, rides, messages and photos for a week.
Choose 7 daysPay, then open NUM: your install code is waiting in your chat, and we email it about five minutes after you pay. If we can’t issue it, you get a full refund.
The short answer
The best eSIM for Czech Republic is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $4.39, as of 4 Nov 2026.
| Plans from | $1.09 on 4 Nov 2026 |
|---|---|
| Networks on local plans | O2, Vodafone |
| 7 days | 3 GB, 15 days, $2.99 |
| 14 days | 5 GB, 30 days, $4.39 |
| 30 days | 10 GB, 31 days, $6.29 (regional plan, 31 countries) |
| 45+ days | 20 GB, 90 days, $20.29 (regional plan, 34 countries) |
| Phone number | None, data only |
| Payment | Apple Pay, Google Pay or card |
A regional plan may list fewer networks here than a local plan. If you need a particular network, check that plan’s network list in the shop before you pay.
How it works
Pick your trip
Choose 7, 14 or 30 days. The shop picks the data for how you use your phone, and shows the networks.
Pay in seconds
Apple Pay, Google Pay or a card. Then open NUM and join free: your install code is waiting in your chat.
Install, then land online
Install at home on wifi with one tap, switch it on as the plane lands, and you’re online walking off. Your home number stays on for calls and codes.
Czech Republic eSIM for 7, 14 and 30 days
Czech Republic eSIM for 14 days
$4.39
5 GB, valid 30 days on O2. Room for social, photos and a few video calls over two weeks.
Choose 14 daysCzech Republic eSIM for 30 days
$6.29
10 GB, valid 31 days, a regional plan covering 31 countries. A month of everyday use, with some streaming and hotspot.
Choose 30 daysCzech Republic eSIM for longer trips
$20.29
20 GB, valid 90 days, a regional plan covering 34 countries. For long stays, remote work and heavy use.
Choose longer tripsNUM’s pick for each trip length on 4 Nov 2026, for photos, maps and social. Prices in US dollars; the price on the pay button is the price you pay.
Czech Republic data plans and prices
| Data | Valid for | Network | Price | Per GB |
|---|---|---|---|---|
| 1 GB | 7 days | O2 5G, Vodafone 5G | $1.09 | $1.09 |
| 2 GB | 15 days | O2 5G, Vodafone 5G | $2.19 | $1.10 |
| 3 GB | 15 days | O2 5G, Vodafone 5G | $2.99 | $1.00 |
| 3 GB | 30 days | O2 5G, Vodafone 5G | $3.19 | $1.06 |
| 5 GB | 30 days | O2 5G, Vodafone 5G | $4.39 | $0.88 |
| 10 GB | 30 days | O2 5G, Vodafone 5G | $6.39 | $0.64 |
| 20 GB | 30 days | O2 5G, Vodafone 5G | $11.79 | $0.59 |
| 1 GB | 30 days | Regional plan, 34 countries | $2.99 | $2.99 |
15 plans in the shop on 4 Nov 2026; 8 shown, least money first. See every plan and today’s prices.
How much data do you need in Czech Republic?
| How you use it | 7 days | 14 days | 30 days |
|---|---|---|---|
| Maps and messages | 1.4 GB | 2.8 GB | 6 GB |
| Plus social | 2.8 GB | 5.6 GB | 12 GB |
| Lots of video | 11 GB | 21 GB | 45 GB |
Coverage in Czech Republic: what to know
Opensignal's February 2026 report put T-Mobile first for coverage experience, 5G availability and speeds. O2 won only 5G coverage and time on 5G, and Vodafone shared the top spot for time connected. T-Mobile is the strongest network.
Checked 3 Nov 2026. Source: insights.opensignal.com. Coverage changes, so check your route before you rely on it.
Czech Republic eSIM by city
Czech Republic coverage, place by place
| Prague | A local guide rates 4G as excellent across virtually all of Prague and major transport routes, with 5G growing in central areas. |
|---|---|
| Cesky Krumlov | A travel guide describes reliable 4G/5G coverage in town, and free wifi is widely offered at hotels, cafés and restaurants as backup. |
| Karlovy Vary | A travel guide describes reliable 4G/5G coverage throughout the spa town, with hotel and café wifi generally good as backup. |
From network data, travel guides and traveler reports, checked 3 Nov 2026. Signal changes, so treat these as a guide.
Where travelers go in Czech Republic
- Brno
Online as you land in Czech Republic
Switch it on as the plane lands at any of these and you’re online walking off:
Planning Czech Republic
One eSIM for Europe
Crossing borders? A regional plan covers this country and its neighbours on one eSIM. Each plan says how many countries it covers.
Nearby destinations
eSIMs for other trips
Questions people ask about a Czech Republic eSIM
What is the best eSIM for Czech Republic?
The one that fits your trip and runs on the Czech Republic’s main networks (O2, Vodafone). For a week most people need about 3 GB; for two weeks about 5 GB; for a month of social and video, 10 GB or more. NUM lists 15 plans here and picks one for your trip and how you use your phone.
How much does an eSIM for Czech Republic cost?
On 4 Nov 2026, plans started at $1.09 and went up to $78.99 for the biggest. NUM’s 7-day pick was 3 GB for $2.99, the 14-day pick 5 GB for $4.39 and the 30-day pick 10 GB for $6.29. The shop always shows today’s price, and the price on the pay button is the price you pay.
How much data do I need for Czech Republic?
As an estimate: maps and messages use about 0.2 GB a day, adding social feeds about 0.4 GB, and video calls or streaming 1.5 GB or more. So a week of everyday use is about 3 GB, two weeks about 5 GB, and a month 10 GB or more.
Is there an unlimited eSIM for Czech Republic?
Not on 4 Nov 2026. The plans for Czech Republic have a set amount of data; you can add more to the same eSIM from your order page if you run low.
Is an eSIM better than roaming in Czech Republic?
For data, usually yes: a travel eSIM is prepaid, so there is no bill afterwards, and you choose the amount before you go. Your home carrier’s roaming can still be handy for calls and texts; keep your home line on for those and turn its data roaming off.
Should I get a local SIM card in Czech Republic instead?
A local SIM can give you a local number, but you queue for it after you land and swap out your home SIM. An eSIM installs before you fly, works as the plane lands, and leaves your home SIM in place for calls and bank codes.
Does a Czech Republic eSIM work everywhere in the country?
It works wherever the Czech Republic’s networks (O2, Vodafone) reach. Cities and main roads are well covered; remote islands, mountains and parks can have weak or no signal, so download offline maps before you go.
Will my Czech Republic eSIM work in neighbouring countries?
A Czech Republic plan works in Czech Republic only. For several countries, a Europe regional plan covers them on one eSIM; each plan lists the countries it covers.
When do the days start counting?
Install it at home on wifi; switch the line on when you land. Each plan in the shop says when its validity starts, so check that before you pay if you are installing well ahead.
Can I use it as a hotspot?
Hotspot works on most plans, so one eSIM can get a laptop or a travel partner online too.
Will I be online when I land?
Install the eSIM at home on wifi, then switch the line on as the plane lands at Prague (PRG), České Budějovice (JCL), Karlovy Vary (KLV). You are online walking off the plane, with no SIM counter and no airport wifi.
Which network works well in Czech Republic?
Opensignal's February 2026 report put T-Mobile first for coverage experience, 5G availability and speeds. O2 won only 5G coverage and time on 5G, and Vodafone shared the top spot for time connected. T-Mobile is the strongest network.
Why does my eSIM show another carrier’s name?
Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.
Will it work on my phone?
Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.
When do I install it?
At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.
Does it come with a phone number?
No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.
What if it doesn’t work?
If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.
An eSIM with a concierge inside.
Text NUM a table for tonight, a driver at 6 am or a pharmacy that’s open now. Any language, any hour, on the data you just bought.
Get my Czech Republic eSIM