Best eSIM for Montenegro: why EU roaming stops at the border and what to use instead
Only two places use the euro without any agreement with the EU, and Montenegro is one of them. It dropped the Deutsche Mark for the euro in 2002 simply by deciding to, with no treaty and no coins of its own. So the ATM in Kotor hands you euros, and you pay for a coffee in Budva exactly as you would in Rome.
Your phone plan doesn't care about the currency. Roaming deals are signed country by country, and Montenegro isn't on the EU's list. Here's what your carrier charges there, which networks an eSIM Montenegro plan runs on, where the signal gives out in the mountains, and when a Montenegro eSIM pays off even for a single day.
Is Montenegro in the EU roaming zone?
No. Montenegro is an EU candidate country, not a member, and it isn't part of the European Economic Area either. Roam Like at Home, the rule that lets European SIM cards use their home allowance anywhere in the EU, stops at the Croatian border.
If you're coming from the US or the UK, the question works a little differently. Your carrier prices roaming by its own country list, and whether Montenegro sits in the cheaper Europe tier depends entirely on the carrier. Check the actual list of countries, not just the zone name, before you fly.
Change is on the way, slowly. In June 2026 the EU cleared the way for talks to bring Montenegro and the rest of the Western Balkans into Roam Like at Home. There's no start date yet, so for this trip, plan ahead.
Setting up an eSIM takes a few minutes at home, and our installation guide walks you through it. Not sure your phone supports one? Check our compatibility list.
Crnogorski Telekom, One or m:tel: which network does your eSIM use?
Montenegro has three mobile networks, and all three cover the places most visitors go. m:tel belongs to Serbia's Telekom Srbija. One was called Telenor until 2022 and is now owned by the Hungarian group 4iG. Crnogorski Telekom is part of the Deutsche Telekom group, so if you're a T-Mobile customer in the US, the magenta T over its shops will look familiar. Shared branding doesn't put it in your home plan, though.
The Roamic eSIM for Montenegro runs on m:tel and Crnogorski Telekom. Your phone connects to the stronger of the two and can switch if one is weak in a given spot. One isn't part of the mix. On the coast you won't notice, since all three networks are well built out there. When you weigh up the best eSIM for Montenegro, the network list matters more than the logo.
Coast coverage: Kotor, Budva, Sveti Stefan, Ulcinj
From Herceg Novi down to Ulcinj, 4G is the baseline, with 5G in Podgorica and along the Budva Riviera. Kotor's Old Town, the Budva seafront, the causeway to Sveti Stefan and Ulcinj's long beach all get enough signal for maps, video calls and Stories.
The only squeeze comes at the peak of summer, when thousands of phones share one cell on a packed beach and a video loads slower at noon than in the evening. That's the local network at capacity, and locals feel it too.
Where it thins out: Durmitor, Tara Canyon, Žabljak
Head north and the picture changes. Žabljak and Kolašin have signal in town. On the Durmitor trails, down in the Tara Canyon and in many road tunnels, it drops out completely for long stretches, whatever eSIM or local card you're using, because there simply aren't enough masts.
Download the area as an offline map, send the important message from the valley and tell someone which route you're taking. Rafting the Tara needs no data anyway, apart from the photo afterward.
Balkan road trip: does a Montenegro eSIM work in Albania?
No. A Montenegro eSIM works inside Montenegro only, so a trip that continues into Albania needs a separate data plan for the Albanian leg. Install both plans before you leave, and switching at the border takes a few taps in your phone's settings.
Crossing into Albania, Bosnia and Croatia: what changes
- Albania: The main road crossings are Sukobin, near Ulcinj, and Božaj, southeast of Podgorica. Albania isn't in the EU, so an EU plan won't cover it either.
- Bosnia and Herzegovina: The usual detour runs via Trebinje toward Mostar. It's also outside the EU.
- Croatia: An EU member. With a SIM from an EU country, your home allowance works again from the Debeli Brijeg crossing onward. From anywhere else, Croatia depends on your carrier's roaming terms.
Near the borders, especially around Herceg Novi, your phone can latch onto a neighboring country's network. If that happens, pick a Montenegrin network manually in your settings.
Telekom tourist SIM vs. a travel eSIM
Crnogorski Telekom sells its own Montenegro eSIM tourist plans, built for long stays and heavy use. Allowances run from hundreds of gigabytes up to unlimited data for 15 or 30 days, so if you'll spend two weeks or more streaming and working online, they give you more data for your money. They also come with a local number and a small data allowance for the neighboring Balkan countries and Croatia.
The trade-offs show up at checkout. You go through an online biometric ID check, and visitors from outside the EU and the Balkans need a passport for it. Plans come in fixed packages, and a refund only applies if activation fails and you report it within 24 hours.
A Roamic travel eSIM is built for the other kind of trip, and it skips all that. There's no ID upload, plans start at €1.99 for short stays and cruise days, validity only begins with your first data use, and you get a full refund if you don't activate the eSIM within six months.
Cruise stop in Kotor: is an eSIM worth it for one day?
Yes. Kotor is one of the busiest cruise ports on the Adriatic, and many itineraries give it a single day. Larger ships often anchor in the bay and tender passengers to the Old Town.
The expensive part usually happens before you step ashore. At sea, your phone can connect to the ship's own cellular network, which carriers bill as premium roaming. Put your home SIM in airplane mode as you sail, or switch off its cellular data.
Install the eSIM at home, since validity only starts with your first data use. Once you're ashore in Kotor, switch your data line to the eSIM. 1 GB for €1.99 easily covers the climb up the city walls, maps and a few videos, and because it lasts 7 days, a second Montenegrin port later in the cruise is covered too.
What does an eSIM for Montenegro cost?
A week on the coast with navigation, WhatsApp, social media and a few photos a day comes in at 3 to 5 GB for most people. Streaming in cafés, lots of video calls or running a laptop off your hotspot can push that past 10 GB.
As a rough guide, a long weekend in Kotor fits in 3 GB for €2.99, and ten days on the Budva Riviera with normal use fits in 5 GB for €4.99. If you'll stream heavily or work from your hotspot for two weeks, the 15-day unlimited plan saves you from watching your balance.
Plans and prices compared
| Plan | Data | Validity | Price |
|---|---|---|---|
| Roamic Standard | 1 GB | 7 days | €1.99 |
| Roamic Standard | 3 GB | 14 days | €2.99 |
| Roamic Standard | 5 GB | 21 days | €4.99 |
| Roamic Standard | 10 GB | 30 days | €6.99 |
| Roamic Standard | 20 GB | 30 days | €12.99 |
| Roamic Unlimited | 3 GB a day at full speed | 7 days | €16.99 |
| Roamic Unlimited | 3 GB a day at full speed | 15 days | €29.99 |
| Roamic Unlimited | 3 GB a day at full speed | 30 days | €42.99 |
On Roamic's unlimited plan, once you pass 3 GB in a day, you keep browsing at 1 Mbps until the next 24-hour cycle, with no extra charges and no cutoff. Hotspot is included on every Roamic plan, and checkout shows the price in your local currency. Every prepaid eSIM Montenegro plan is listed with its exact validity.
Can you make calls with an eSIM in Montenegro?
Not traditional calls. The Roamic eSIM for Montenegro is data only, with no phone number of its own. Calls go through WhatsApp, FaceTime, Signal or Telegram, which work over mobile data just as they do at home.
Your home SIM stays in the phone and stays active, so calls and texts to your usual number still reach you, including verification codes from your bank. Turn off data roaming on that line so it doesn't pull data in the background, and check what your carrier charges for incoming calls abroad. The emergency number 112 always works in Montenegro.
What is the downside of an eSIM?
Three things are worth knowing before you buy:
- No local number. Hosts and taxi drivers reach you on your usual number or on WhatsApp.
- Not every phone supports it. Yours needs to be eSIM-capable and carrier-unlocked, which rules out some older models.
- It's tied to the device. If you delete the profile or switch phones, you usually can't just move the eSIM over.
One thing an eSIM doesn't change is the dead zones in Durmitor. You'll have those with any option.
Conclusion
Montenegro runs on euros, but your phone plan still treats it as abroad. Sorting that out takes five minutes before you leave.
With Roamic you start at €1.99, connect through m:tel and Crnogorski Telekom, and pay no roaming at all. Validity starts with your first data use, so you can buy and install the eSIM weeks ahead. If your plans change, you have six months: don't activate it, and we refund you in full. You never upload an ID.
Pick your plan for Montenegro, and your first message home goes out before your bag reaches the carousel at Tivat.
FAQs
Is Montenegro in the EU roaming zone?
No. Montenegro uses the euro but isn't an EU member, so EU roaming rules don't apply there. The EU approved talks to change that in 2026, with no start date yet.
Can I use one eSIM for Montenegro and Albania?
Not with Roamic's Montenegro eSIM, which works only inside Montenegro. Add a separate data plan for Albania and switch lines at the border.
Is an eSIM worth it for a one-day cruise stop?
Yes. Roamic's 1 GB plan costs €1.99 and covers a full day in Kotor. Keep your home SIM in airplane mode on board.