Will it work in all three spa towns?

Absolutely — it's the national Czech plan, covering Karlovy Vary, Mariánské Lázně and Františkovy Lázně alike, roaming on O2, T-Mobile or Vodafone across the whole region.

Do I risk German roaming near the border?

You might. Around Cheb your handset can grab a German mast automatically. This Czech plan won't work there, so lock your network to a Czech operator if data suddenly stops.

Karlovy Vary Region eSIM.

Name: Karlovy Vary Region travel eSIM
Brand: My Holiday SIM

The West Bohemian spa triangle of colonnades, hot springs and Becherovka — reliably connected.

from $2.15/day · unlimited dataAll of Czech Republic →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 30 days$4.57$0.46/day

Cheapest plan covering your trip: 3GB, valid 30 days.

Travellers (one eSIM each)

1 × 3GB (valid 30 days) · 10-day trip$4.57

Good to know in Karlovy Vary Region

The spa triangle sits close to the German border, so near Cheb and Františkovy Lázně your phone may hop onto a German network — check you're still on a Czech one before using data to avoid confusion.

Best time to visit Karlovy Vary Region

May to September is peak spa season with warm strolls and open colonnades; early July adds the famous Karlovy Vary International Film Festival.

Two simple ways to buy

Karlovy Vary Region eSIM plans: unlimited, or by the GB.

Every Karlovy Vary Region eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Karlovy Vary Region — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Karlovy Vary Region?

A rough, honest guide to sizing your Karlovy Vary Region eSIM so you're not guessing. Most travellers in Karlovy Vary Region are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Karlovy Vary Region eSIM: your local data guide.

This is Bohemia's grand spa country, where Karlovy Vary's colonnades, Mariánské Lázně's singing fountain and Loket's riverside castle draw wellness travellers and the summer film festival. You'll want data to book spa treatments, translate menus of spa wafers, and drive the wooded roads to Cheb. A Karlovy Vary Region eSIM keeps navigation and bookings running across the triangle.

One eSIM for Karlovy Vary Region and all of Czech Republic. It's the national Czech Republic eSIM — from $2.15/day with unlimited data, working the same in Karlovy Vary Region as it does the moment you leave it.

Landing at Karlovy Vary (KLV)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Karlovy Vary Region eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$0.86

$2.58

—

5 days1GB

$0.52

$2.58

−40%

7 days1GB

$0.37

$2.58

−57%

10 days3GBPopular

$0.46

$4.57

−47%

15 days3GB

$0.30

$4.57

−65%

30 days3GB

$0.15

$4.57

−83%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Karlovy Vary Region

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Karlovy Vary Region eSIM from $2.15/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in Karlovy Vary Region.

Karlovy Vary

Robust 4G/5G along the colonnade and spa hills, easily handling festival apps and hot-spring tour bookings.

Mariánské Lázně

Dependable coverage through the spa park and around the Singing Fountain for playlists and treatment schedules.

Loket

Good signal in the little town below its castle, dipping slightly on the forested Ohře river bends.

Cheb

Strong data near the historic square and the German border, useful for cross-frontier trip planning.

The practical bit

Getting around Karlovy Vary Region on your eSIM.

Apps you'll want online in Karlovy Vary Region

IDOK— The Karlovy Vary Region's integrated transport app for regional buses and trains on one ticket.
IDOS— National timetable app covering every connection from Prague out to the western spa towns.
Liftago— Czech ride-hailing that fills the gap in spa towns where Bolt and Uber are scarce.
Můj vlak— České dráhy app for buying tickets on the scenic rail line through the Ohře valley.

How long to stay in Karlovy Vary Region

Spa breaks here run anywhere from a long weekend to a full week-long wellness stay, with day trips out to Loket, Cheb and the Bečov château.

How much data for Karlovy Vary Region

A light-to-balanced plan around 3 GB suits a relaxed spa trip built on hotel Wi-Fi; choose more if you plan to work remotely or stream between treatments.

Coverage in Karlovy Vary Region

The spa towns and the KLV airport road enjoy strong 4G/5G, but the wooded Slavkov Forest, Krušné hory ridge and quieter valleys between resorts see coverage thin out noticeably.

Where you're headed

Discover Karlovy Vary Region.

Beautiful historic colonnade in Marianske Lazne, Czech Republic, under a bright sky.

A breathtaking aerial view of the charming town of Karlovy Vary nestled in rolling hills and lush forests.

A picturesque view of historical architecture in Karlovy Vary, Czech Republic.

Picturesque view of a river and colorful buildings along the waterfront in Karlovy Vary, Czech Republic.

Cities in Karlovy Vary Region

Zoom in on Karlovy Vary Region.

Karlovy Vary eSIM

How to activate your Karlovy Vary Region eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Karlovy Vary Region

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Karlovy Vary Region?

What is a Karlovy Vary Region eSIM?

A Karlovy Vary Region eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Karlovy Vary Region data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Why travellers choose My Holiday SIM for Karlovy Vary Region.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in Czech Republic.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins Czech Republic's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

O2 Czech Republic
T-Mobile Czech Republic
Vodafone Czech Republic

Popular places covered

PragueBrnoCesky KrumlovKarlovy VaryKutna HoraPlzenOlomouc

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Karlovy Vary Region eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Karlovy Vary Region eSIM questions, answered.

Yes. The town's networks are built for the July surge, so you'll keep solid 4G/5G for the festival app, ticket queues and social posts, even when the colonnades are packed.

Your Karlovy Vary Region eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in Czech Republic?