# How to buy & set up an eSIM for Croatia (step by step)

> Buying an eSIM for Croatia takes 2 minutes and is done online. Here are the exact steps.

Buying an eSIM for Croatia takes 2 minutes and is done online. Here are the exact steps.

## Steps

- Check your phone supports eSIM and is unlocked
- Buy the Croatia plan at MerrSIM
- Receive the QR code by email
- Scan: Settings → Mobile → Add eSIM
- Turn on Data Roaming for the eSIM on arrival

## Get online at the airport

Install a MerrSIM eSIM for Croatia (from €1.99, 10 GB €10.99) before departure and you’re online the moment you land at Zagreb Airport — no WiFi hunt, no roaming.

[MerrSIM — eSIM Croatia](https://merrsim.com/destinations/esim-plans-for-croatia)

## How much data you really need

For normal use — maps, messaging, social media and the odd video — budget about 300–700 MB a day. A light traveller is fine with 3–5 GB for a week, while anyone doing video calls, streaming or laptop hotspot will want 10–20 GB. In Croatia, download offline maps and use hotel WiFi for big downloads; that way a 10 GB plan comfortably lasts two weeks. If you run out, you buy a new plan in the app with no waiting.

## Does your phone support eSIM?

Before you buy, check two things. First, the phone must be eSIM-compatible: iPhone XR/XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and many recent Motorola, Huawei and Oppo models. Second, it must be carrier-unlocked. You can verify by dialling *#06# — if an EID number appears, your phone supports eSIM. This saves you any surprises when you arrive in Croatia.

## How an eSIM works

An eSIM is a digital SIM built into your phone: there is no physical card to insert. You buy it online, get a QR code by email and scan it in your settings. Once installed, the profile lives on your phone and activates when you reach Croatia, connecting automatically to a local partner network. You can keep your main SIM at the same time, so your number still gets calls and texts while the eSIM handles data.

## Tips to save data

A few small habits make your gigabytes last in Croatia. Download Google Maps offline before you head out, set video quality to “Auto” or 480p, and turn off background app refresh. Use hotel WiFi for big updates and high-resolution photo uploads. With these steps, even a modest plan covers the whole trip, and your hotspot stays free for the moments you really need it.

## Common mistakes to avoid

Three mistakes often spoil the start of a trip. First: buying the eSIM at the last minute at the airport, when you have no WiFi to install it — do it at home. Second: forgetting to switch on data roaming for the eSIM line, which makes it look like it is not working. Third: leaving mobile data on your home SIM, which racks up roaming charges. Check these three and your connection in Croatia will be trouble-free.

## FAQ

### How do I get online as soon as I arrive in Croatia?
Activate a MerrSIM eSIM for Croatia (from €1.99, 10 GB €10.99) by QR before departure; you connect automatically at the airport.


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Author: Etnik Beqiri  
Published: 2026-05-28  
Source: https://merrsim.com/en/blog/si-te-blesh-esim-croatia-en