Why choose our eSIM for the Czech Republic
Fastest 4G/5G
We cooperate with operators with the fastest Internet
Package works in 38 countries
Our regional packages work in multiple countries
Activation by QR code
We will send a QR code immediately after payment
No document upload required
You don't need to provide identification documents
No hidden fees
Pay only for traffic. If it runs out, you can buy a new package
Keep your number
You can simultaneously use the original number for calls, texts and WhatsApp
Prepaid package
No credit contract and automatic renewal
Cheaper than your roaming plan
We check roaming plans every day and offer the best prices
How does eSIM for the Czech Republic work
Before you purchase, make sure that your smartphone supports eSIM
You can find a list of supported smartphones here
Get the QR code by email
You will receive a QR code and activation instructions immediately after payment
Scan the code
Scan the code with your phone camera and start the activation of the package
Assign mobile data
Assign cellular / mobile Data from original number to be used from the eSIM
Turn on the data and enjoy the Internet
Turn on data roaming in the destination country
Covering not only the Czech Republic but even more
This eSIM works in the Czech Republic and an additional 38 countries
Speed and coverage depend on operator and network availability
Coverage in Europe
- Austria
- Belgium
- Bulgaria
- Croatia
- Cyprus
- Czech Republic
- Denmark
- Estonia
- Finland
- France
- Germany
- Greece
- Hungary
- Iceland
- Ireland
- Isle of Man
- Italy
- Latvia
- Lithuania
- Luxembourg
- Malta
- Netherlands
- Poland
- Portugal
- Romania
- Slovakia
- Slovenia
- Spain
- Sweden
- Switzerland
- Ukraine
- United Kingdom
Additional coverage
- Hong Kong
- Indonesia
- Macao
- Sri Lanka
- Turkey
- Vietnam
Frequently Asked Questions
When you purchase an eSIM from Onesim you will instantly receive the eSIM QR code and all the relevant instructions to download and use it. If you didn’t receive your eSIM plan within 10 minutes, please check your spam folder first then contact us via [email protected]
The eSIM plan will start as soon as you scan and activate the QR code. Therefore, you can either buy the eSIM plan prior to your trip or after you arrive at your destination.
You can’t use an eSIM with a locked phone. To check whether your device is locked, please contact your carrier or check the [Settings] menu. If your phone is locked, you should contact your domestic carrier to unlock your phone before you can use the eSIM plan.
Onesim doesn’t offer top-up service right now. If you want to use your eSIM plan longer, you will need to buy a new eSIM plan.
Once an eSIM plan is installed, it can’t be reinstalled or reissued. If you are facing any problem, please don’t delete your eSIM plan - instead, contact Onesim team via [email protected] first.
Hundreds of happy eSIM customers
Excellent product. Worked right away when the plane landed. Will never go back to using a physical sim when travelling.
Super easy to buy and set it up. Just scanned the QR code for the eSIM and my phone was connected to the network. Great option for travelers to get connectivity at a reasonable price.
The delivery is instant, and the setup is easy to follow. Overall, it is a very good experience to me.
I was waiting for eSim for long time. And now you can buy it even at sea, like me! That’s great! All was without any problems, internet is as usual working OK.