Croatia eSIM Guide 2026: Best Tourist eSIM, Phone Numbers and Island Coverage

This Croatia eSIM guide is for visitors landing in Zagreb, Split or Dubrovnik with a phone from outside the EU, and for anyone planning ferries to the islands or a day across the border in Bosnia and Herzegovina or Montenegro. Updated October 2026.

Table of contents

1. What is the best eSIM for Croatia?
2. Do I need an eSIM for Croatia if my SIM is from Bosnia, the UK or the US?
3. Which network is best in Croatia: Hrvatski Telekom, A1 or Telemach?
4. Will my phone have signal on Croatian ferries and islands?
5. How do I check Croatia's mobile coverage at Plitvice Lakes or on Velebit?
6. Will I pay Bosnian roaming on Croatia's coast road through Neum?
7. Can I get a Croatia eSIM with a phone number?
8. Can a tourist buy a Croatian SIM card without ID?
9. How much data do I need for a week of island hopping in Croatia?
10. Is there an unlimited data eSIM for Croatia?
11. When should I install my Croatia eSIM, before the flight or after landing in Split?

1. What is the best eSIM for Croatia?

For most coast trips the best eSIM for Croatia is 10 GB for 30 days at ⁦$10.49⁩, on a plan that can use more than one Croatian network so your phone can move to the stronger signal on Hvar or in the Pelješac vineyards. As of October 2026 every plan we carry for Croatia is a multi-country plan (Europe, Balkans or worldwide); there is no Croatia-only plan, which matters little unless you want a +385 number. If you will spend a month in a rented apartment in Split and work from it, go up to a plan like 20 GB for 30 days at ⁦$17.99⁩.

2. Do I need an eSIM for Croatia if my SIM is from Bosnia, the UK or the US?

Yes, a Bosnian, British, American or Canadian SIM roams at your home carrier's international rates in Croatia, and a travel eSIM, with plans from ⁦$3.49⁩, swaps those rates for one prepaid price. EU "roam like at home" only covers SIMs from the EU, Iceland, Liechtenstein, Norway, Moldova and Ukraine, according to the European Commission's Your Europe roaming page. A German, Slovak or Italian SIM works in Croatia like it does at home, so check your own allowance before buying anything.

3. Which network is best in Croatia: Hrvatski Telekom, A1 or Telemach?

Hrvatski Telekom scored best in the regulator's 2025 drive test, with 904 of 1,000 points against 851 for Telemach and 846 for A1 Hrvatska, according to HAKOM's independent measurement report. The test ran in April and May 2025 across 31 cities and about 5,000 km of roads, so it says little about open sea or national parks. Hrvatski Telekom is also the largest, with 44.4% of mobile users at the end of 2024, ahead of A1 at 34.1% and Telemach at 21.5% (HAKOM data reported by tportal). On our plan pages Hrvatski Telekom often appears as T-Mobile, because it belongs to the Deutsche Telekom group.

Plans that list two or three of these networks let your phone switch when one fades. Plans with a single network are cheaper per GB and fine for Zagreb or Split old town.

4. Will my phone have signal on Croatian ferries and islands?

On the short Jadrolinija car ferries, such as Split to Supetar or Zadar to Preko, the crossing stays close to the coast, and island ports and towns are on the same Croatian networks as the mainland. The risk is the long open-water routes, including Jadrolinija's lines to Ancona and Bari in Italy: far from shore a phone can latch onto a ship's satellite network, and the European Commission notes that EU roaming rules and price caps do not apply there (Your Europe). If your home SIM is still on, the Commission's advice is to turn off roaming or use flight mode while on board.

5. How do I check Croatia's mobile coverage at Plitvice Lakes or on Velebit?

Check HAKOM's coverage maps, which show A1, Hrvatski Telekom and Telemach side by side, with separate maps for data and for calls, indoors and outdoors, updated every quarter (HAKOM coverage maps). Data coverage is graded in four levels, from no signal to very good, so you can zoom into the Plitvice trails, the Velebit huts or the Krka canyon and see which network reaches. The operators supply these maps themselves, and canyons and forest can be worse than the map shows, so download offline maps of the park before you leave the car park.

6. Will I pay Bosnian roaming on Croatia's coast road through Neum?

You can, because the old Adriatic coast road crosses about 20 km of Bosnia and Herzegovina at Neum, and a phone near the town may switch to a Bosnian network where EU roaming rules do not apply. Since Croatia joined Schengen, the two crossings at Neum are EU external borders with passport checks (Neum). The Pelješac Bridge, open since 26 July 2022, takes traffic to Dubrovnik around Neum on Croatian territory (Pelješac Bridge), but some buses and tours still go through the town.

As of October 2026 our Balkans and worldwide plans cover all three countries. Add or remove stops to match your route:

7. Can I get a Croatia eSIM with a phone number?

Not a Croatian +385 number: as of October 2026 the plans we sell for Croatia are data-only, except the EU 60 GB and 120 GB plans from Bouygues, which come with a French +33 number and unlimited calls and texts within the EU. WhatsApp and Viber calls run over mobile data, which is enough to reach a konoba, a boat skipper or your apartment host in Croatia. Your home number keeps receiving calls and texts if you leave your physical SIM switched on, though incoming calls may be charged as roaming.

8. Can a tourist buy a Croatian SIM card without ID?

As of October 2026, most of our Croatia plans are delivered by email with no ID check; plans that require one show 'ID check required' on the plan page. A local prepaid line asks for more: Hrvatski Telekom's bonbon prepaid brand, for example, registers foreign customers with photos of their passport's personal data page sent by MMS to 13701 (bonbon registration terms). Croatia has used the euro since 1 January 2023 (European Central Bank), so prices in shops and kiosks are in euros.

9. How much data do I need for a week of island hopping in Croatia?

A week of island hopping usually fits in 10 GB for 30 days at ⁦$10.49⁩, because a normal holiday day of maps, social apps, some video and a video call home uses about 1.3 to 1.9 GB. Most apartments and cafés in Hvar town or Korčula have Wi-Fi, but you are on mobile data on deck, on the beach at Zlatni Rat and on the bus to Plitvice. Set your own day and trip length here:

10. Is there an unlimited data eSIM for Croatia?

Yes, on Europe-wide plans that include Croatia: the cheapest is unlimited data for 3 days at ⁦$7.99⁩. For a longer stay the biggest fixed plan, 120 GB for 30 days at ⁦$49.99⁩, works out at about 4 GB a day for 30 days, enough to run a hotspot for a family laptop in an apartment without Wi-Fi. For most trips a 20 GB or 30 GB plan does the same job for less money.

11. When should I install my Croatia eSIM, before the flight or after landing in Split?

Install it at home on Wi-Fi the day before you fly, and switch it on when the plane lands in Split, Zagreb or Dubrovnik. As of October 2026, most of the plans we carry for Croatia start counting days at your first data use there, so installing early costs nothing; the Half Global and Global plans from 3 start at installation, so install those on arrival. An eSIM that is never activated expires two months after purchase, and each plan page states its rule.