Montenegro & Greece eSIM: One eSIM for Both Countries
If you’re planning to visit both Montenegro and Greece on the same trip, a regional travel eSIM is one of the easiest ways to stay connected. Instead of buying separate SIM cards or switching mobile plans, one eSIM can provide mobile internet across both destinations.
This is especially useful for Balkan road trips, Adriatic holidays, island travel, cruise itineraries and multi-country European vacations that combine Montenegro’s coast with Greece’s islands, cities and beaches.
Quick answer: if your travel eSIM includes both Montenegro and Greece, your phone can connect to supported local networks in both countries while keeping the same eSIM installed.
Top Greece eSIMs
Greece eSIM
Fixed
1 GB, 7 days€ 1.732 GB, 15 days€ 3.463 GB, 30 days€ 4.33Unlimited
Unlimited, 1 day€ 2.16Unlimited, 3 days€ 4.76Unlimited, 5 days€ 7.79
Montenegro eSIM
Fixed
1 GB, 7 days€ 3.462 GB, 15 days€ 5.193 GB, 30 days€ 6.92Unlimited
Unlimited, 1 day€ 3.89Unlimited, 3 days€ 8.22Unlimited, 5 days€ 12.55
Balkans eSIM
Fixed
1 GB, 7 days€ 4.332 GB, 15 days€ 6.923 GB, 30 days€ 9.09Unlimited
Unlimited, 1 day€ 4.76Unlimited, 3 days€ 10.82Unlimited, 5 days€ 16.87Europe Extra eSIM
Fixed
1 GB, 7 days€ 2.162 GB, 15 days€ 3.463 GB, 30 days€ 4.33Unlimited
Unlimited, 1 day€ 2.60Unlimited, 3 days€ 5.19Unlimited, 5 days€ 8.65Europe+ eSIM
Fixed
1 GB, 7 days€ 2.602 GB, 15 days€ 3.893 GB, 30 days€ 5.19Unlimited
Unlimited, 1 day€ 2.60Unlimited, 3 days€ 6.06Unlimited, 5 days€ 9.95Europe Lite eSIM
Fixed
1 GB, 7 days€ 2.162 GB, 15 days€ 3.463 GB, 30 days€ 4.33Unlimited
Unlimited, 1 day€ 2.60Unlimited, 3 days€ 5.19Unlimited, 5 days€ 8.65Why Use One eSIM for Montenegro and Greece?
Montenegro and Greece are often combined in longer Balkan or Mediterranean itineraries. A regional eSIM keeps things simple because you only need one installation before your trip.
- One QR code.
- One installation.
- One mobile data plan.
- No physical SIM card swap.
- No separate local SIM purchase.
- Useful for multi-country travel.
- Keep your regular SIM active.
How Does a Regional eSIM Work?
A regional travel eSIM connects your phone to supported partner networks in each covered country. Once installed, your phone can switch networks automatically as you move between destinations.
| Country | Automatic Connection |
|---|---|
| Montenegro | Yes |
| Greece | Yes |
Popular Montenegro and Greece Travel Routes
| Route | Best For |
|---|---|
| Montenegro → Albania → Greece | Balkan road trips |
| Kotor → Tirana → Thessaloniki | City and coast combinations |
| Budva → Corfu | Beach and island travel |
| Podgorica → Athens | Multi-country vacations |
| Adriatic Coast → Greek Islands | Longer summer trips |
Regional eSIM vs Local SIM Cards
| Feature | Regional eSIM | Local SIM Cards |
|---|---|---|
| Works in both countries | Yes | Usually separate SIMs required |
| Install before travel | Yes | No |
| Physical SIM needed | No | Yes |
| Best for border crossings | Excellent | Lower |
| Keep home SIM active | Yes | Depends on phone |
Coverage in Montenegro and Greece
| Destination | Expected Coverage |
|---|---|
| Kotor | Excellent |
| Budva | Excellent |
| Podgorica | Excellent |
| Tivat | Excellent |
| Athens | Excellent |
| Thessaloniki | Excellent |
| Corfu | Very Good |
| Greek Islands | Good to Very Good |
| Remote mountain or island areas | Variable |
Does EU Roaming Work in Both Countries?
Greece is part of the EU roaming area, but Montenegro is not. This means a regular European SIM may work differently in each country depending on your home provider.
A regional travel eSIM that includes both Montenegro and Greece gives you one prepaid mobile data solution for the full route.
Crossing Between Montenegro and Greece
Most travelers move between Montenegro and Greece through Albania, by road, bus, ferry connections or flights. If your eSIM covers all countries on your route, your phone can reconnect automatically as you move from one network to another.
For smooth reconnection:
- Keep the travel eSIM enabled.
- Enable Data Roaming.
- Leave Network Selection on Automatic.
- Wait a few minutes after crossing a border or landing.
- Turn Airplane Mode on for 30 seconds if needed.
Recommended Phone Settings
| Setting | Recommended Value |
|---|---|
| Mobile Data | Travel eSIM |
| Calls | Primary SIM |
| SMS | Primary SIM |
| Data Roaming | ON |
| Network Selection | Automatic |
| Automatic Data Switching | OFF |
| APN | data.esim if required |
Can You Keep Your Home SIM?
Yes. Most Dual SIM smartphones allow you to keep your regular SIM active while using the regional eSIM for mobile data.
- Use the eSIM for internet.
- Keep your home SIM for calls.
- Receive SMS verification codes.
- Continue using your regular phone number.
- Keep WhatsApp linked to your existing number.
Does WhatsApp Work?
Yes. WhatsApp works normally in both Montenegro and Greece using mobile data from your eSIM or WiFi.
Your WhatsApp account remains linked to your existing phone number, so your chats, contacts and groups stay the same.
Can You Use Hotspot?
Yes. Most smartphones allow hotspot sharing with a travel eSIM.
This is useful for:
- Laptops.
- Tablets.
- Travel companions.
- Remote work.
- Emergency backup internet.
How Much Data Do You Need?
| Trip Type | Recommended Data |
|---|---|
| Short two-country trip | 3–5 GB |
| One-week holiday | 5–10 GB |
| Two-week Montenegro and Greece trip | 10–20 GB |
| Island hopping and road trips | 10–20 GB |
| Remote work | 20 GB+ |
Typical Data Usage
| Activity | Approximate Data Usage |
|---|---|
| Google Maps navigation | 5–10 MB per hour |
| WhatsApp messages | Very low |
| WhatsApp voice calls | 30–50 MB per hour |
| WhatsApp video calls | 250–500 MB per hour |
| Instagram browsing | 100–300 MB per hour |
| TikTok | 500 MB–1 GB per hour |
| YouTube HD | 1–3 GB per hour |
Best Travel Tips
- Install your eSIM before departure.
- Check that both Montenegro and Greece are included.
- If traveling by land, check whether Albania is also included.
- Enable Data Roaming.
- Keep Network Selection on Automatic.
- Download offline maps before road trips.
- Save hotel and ferry details offline.
- Carry a power bank.
Common Mistakes
- Buying a Greece-only eSIM before visiting Montenegro.
- Buying a Montenegro-only eSIM before continuing to Greece.
- Forgetting that Albania may be part of the land route.
- Disabling Data Roaming.
- Selecting the primary SIM for Mobile Data.
- Using manual network selection near borders.
What If Internet Does Not Work After Arrival?
- Wait a few minutes for network registration.
- Check that the travel eSIM is selected for Mobile Data.
- Enable Data Roaming.
- Turn Airplane Mode on for 30 seconds.
- Restart your phone.
- Keep Network Selection on Automatic.
- Verify the APN is data.esim if required.
Related Guides
- Montenegro eSIM
- Greece eSIM
- Balkans eSIM
- Montenegro and Albania eSIM
- Montenegro and Croatia eSIM
- Best eSIM for Montenegro
- Best eSIM for Greece
- How to Use an eSIM in Montenegro
FAQ
Can one eSIM work in both Montenegro and Greece?
Yes. A regional travel eSIM that includes both countries can work in Montenegro and Greece.
Do I need two separate eSIMs?
No. One regional eSIM is enough if your plan covers both countries.
Do I need Albania included too?
If you travel by land between Montenegro and Greece, yes, it is recommended to choose a plan that also includes Albania.
Does WhatsApp work in both countries?
Yes. WhatsApp works normally using your eSIM mobile data while keeping your existing phone number.
Can I keep my physical SIM card?
Yes. Most Dual SIM phones let you keep your primary SIM active for calls and SMS.
What APN should I use?
If manual configuration is required, use data.esim.
Final Recommendation
If you’re visiting both Montenegro and Greece, a regional travel eSIM is the easiest way to stay connected across the full itinerary. Make sure your plan includes both countries, and if traveling by land, check that Albania is included too. Install the eSIM before departure, enable Data Roaming and keep Network Selection on Automatic for smooth mobile internet throughout your trip.