
Montenegro SIM Card vs eSIM: EU Roaming, Cruise Stops & Coverage (2026)
Montenegro isn't in EU Roam Like at Home. Compare tourist SIMs and eSIMs for Kotor, Budva and Durmitor, including cruise day stops. Plans from $2.
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Angelus Sharma
Published
September 21, 2026

Choosing the right travel eSIM can make international travel much easier. Instead of buying a physical SIM card after landing, dealing with airport SIM counters, or paying expensive international roaming charges, you can install an eSIM before your trip and connect as soon as you arrive.
But with different data amounts, validity periods, destinations, and plan types available, how do you know which travel eSIM is right for your trip?
With eSIMLLY, you can choose a travel eSIM based on your destination, trip duration, and expected data usage. eSIMLLY provides travel eSIM plans across 160+ countries, with options designed for short trips, longer holidays, business travel, and multi-country journeys.
Explore eSIMLLY travel eSIM plans
A travel eSIM is a digital SIM profile that lets your compatible smartphone connect to a mobile network without inserting a physical SIM card.
Instead of purchasing a local SIM when you arrive at your destination, you purchase an eSIM plan, receive the activation details, install the eSIM on your phone, and use mobile data according to the plan you selected.
eSIMLLY provides prepaid travel data plans for destinations around the world. The exact network, speed, coverage, validity, and supported features depend on the individual plan.
This makes choosing the right travel eSIM plan important.
There are five main things to consider:
Your destination
The number of days you are travelling
How much mobile data you need
Whether you are visiting one country or multiple countries
Whether your phone supports eSIM
Let's look at each one.
The first thing to check is where you are travelling.
Your eSIM needs to support the country or countries you plan to visit.
With eSIMLLY, you can choose from travel eSIM plans covering 160+ countries, including popular destinations across Europe, Asia, North America, South America, the Middle East, Africa, and Oceania.
Popular destinations include:
Japan
United States
United Kingdom
Italy
France
Germany
Spain
Australia
Canada
Singapore
Thailand
Indonesia
South Korea
China
Türkiye
India
United Arab Emirates
Brazil
Mexico
You can select your destination directly from eSIMLLY's country-specific eSIM plans.
For example, if you're travelling to Japan, you can choose a Japan eSIM rather than looking for a general international solution.
Your trip duration is another important factor.
A travel eSIM plan may have a specific validity period, such as 7, 15, or 30 days.
You should choose a plan that covers your entire trip.
If you're travelling for around a week, a 7-day plan may be sufficient.
For example, eSIMLLY offers Japan plans starting at:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
The available plans and prices can change, so check the destination page before purchasing.
For a 10–15 day holiday, a 15-day plan can be convenient.
For example, eSIMLLY's France plans include multiple data options with 15-day validity, allowing you to choose according to your expected usage.
If you're travelling for several weeks, look for a 30-day plan.
eSIMLLY offers 30-day options in various destinations, including Japan, France, Germany, Thailand, Indonesia, Singapore, South Korea, and Mexico.
The important point is to match your eSIM's validity with your travel schedule.
Data usage is one of the biggest factors when choosing a travel eSIM.
You don't necessarily need the largest plan available.
Instead, consider what you actually do on your phone while travelling.
You may need less data if you primarily use your phone for:
Google Maps
WhatsApp messages
Checking travel information
Occasional web browsing
Booking confirmations
A smaller plan can be suitable for this type of usage.
You may need more data if you regularly use:
Social media
Google Maps
Ride-hailing applications
Video calls
Music streaming
Frequent web browsing
Photo uploads
A medium-sized plan may be more appropriate.
You may want a larger plan if you frequently:
Watch videos
Stream music
Upload photos and videos
Make video calls
Use social media extensively
Work remotely
Use your phone as a hotspot where supported
For heavier usage, eSIMLLY offers larger plans such as 10 GB and 20 GB in various destinations.
The right amount depends on your individual usage and whether you have access to Wi-Fi during your trip.
Your destination also determines which type of plan makes sense.
If you're visiting only one country, a country-specific eSIM can be a straightforward choice.
For example:
Japan only → Japan eSIM
France only → France eSIM
Thailand only → Thailand eSIM
Singapore only → Singapore eSIM
But if your itinerary includes several countries, you may want to consider a regional plan where available.
For example, someone travelling through several European countries may prefer a Europe-focused solution rather than purchasing a separate eSIM for every country.
eSIMLLY provides destination and regional travel options designed for international travellers.
Before buying any travel eSIM, make sure your smartphone supports eSIM technology.
Many newer smartphones support eSIM, including compatible models from:
Apple
Samsung
Google Pixel
Other manufacturers
However, eSIM support can vary by model, region, and carrier configuration.
If you're unsure, use the eSIMLLY Compatibility Checker before purchasing.
Check your device compatibility with eSIMLLY
This is especially important if you are travelling with an older smartphone.
One of the advantages of choosing eSIMLLY is that you can select a plan specifically for your destination.
Here are some examples of currently listed plans.
eSIMLLY Japan plans include options such as:
Data | Validity | Example Price |
|---|---|---|
1 GB | 7 days | $4 |
2 GB | 15 days | $6 |
3 GB | 15 days | $8.99 |
5 GB | 15 days | $18.50 |
10 GB | 15 days | $32 |
10 GB | 30 days | $37 |
20 GB | 30 days | $55 |
Check current Japan eSIM plans
France plans include options such as:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current France eSIM plans
eSIMLLY Germany plans include:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current Germany eSIM plans
Thailand travellers can choose from plans including:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current Thailand eSIM plans
Singapore plans include:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current Singapore eSIM plans
Indonesia plans include:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current Indonesia eSIM plans
South Korea plans include options such as:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current South Korea eSIM plans
Mexico plans include:
1 GB / 7 days
2 GB / 15 days
3 GB / 15 days
5 GB / 15 days
10 GB / 15 days
10 GB / 30 days
20 GB / 30 days
Check current Mexico eSIM plans
A simple way to estimate your requirement is to think about your daily usage.
Suitable for lighter usage such as:
Messaging
Maps
Occasional browsing
Suitable for travellers who regularly use:
Maps
Social media
Browsing
Messaging
Travel apps
Occasional media
Useful for travellers who use mobile data frequently for:
Social media
Navigation
Video calls
Streaming
Work
Frequent browsing
A larger option for heavy mobile-data users or longer trips.
Remember that actual consumption depends heavily on your phone settings, video quality, background applications, cloud backups, and whether you use Wi-Fi.
If you're unsure between two plans, consider your access to Wi-Fi.
If you will spend most evenings at hotels, restaurants, offices, or cafés with Wi-Fi, you may not need a very large mobile-data package.
If you're travelling continuously and expect to use mobile data throughout the day, a larger plan may provide more flexibility.
With eSIMLLY, you can choose from multiple data sizes depending on the destination instead of automatically purchasing the largest available plan.
eSIMLLY is designed specifically for travellers who want convenient mobile connectivity without relying on physical SIM cards.
eSIMLLY provides travel eSIM coverage across more than 160 countries.
That means you can use eSIMLLY for trips across Europe, Asia, the Americas, Africa, the Middle East, and Oceania.
Different travellers have different requirements.
eSIMLLY provides different data allowances and validity periods across its destination plans, helping you select an option based on your trip.
Depending on the destination, plans can cover short trips as well as longer stays, with options including 7-day, 15-day, and 30-day validity.
After purchasing an eSIM plan, you can receive your eSIM digitally rather than waiting for a physical SIM card.
eSIMLLY provides installation guidance for supported iPhone, Samsung, Google Pixel, and Android devices.
View the eSIMLLY installation guide
eSIMLLY plans use supported local networks, with available network technology depending on the destination and specific plan.
You don't need to remove your existing physical SIM card to install an eSIM.
On compatible dual-SIM devices, you can potentially keep your existing SIM active while using the eSIM for travel data, depending on your device and carrier configuration.
Once you select your eSIMLLY plan, you can install the eSIM on your compatible device.
A typical process involves:
Purchase your destination eSIM.
Receive your eSIM activation details.
Open your phone's cellular/mobile network settings.
Select the option to add an eSIM.
Scan the QR code or enter the activation details manually.
Follow the installation instructions.
Configure the eSIM for mobile data.
Activate the appropriate roaming/data settings required by the plan.
It is generally useful to install the eSIM before travelling so you have time to complete setup while you still have reliable internet access.
For detailed installation instructions, use the eSIMLLY installation guide.
On compatible dual-SIM smartphones, you can often keep your regular SIM installed while using an eSIM for mobile data.
This can be useful when travelling internationally.
For example:
Physical SIM: Your regular number for calls, SMS, or account verification
eSIMLLY eSIM: Travel mobile data
This allows you to stay connected while avoiding the need to physically remove your primary SIM.
Your phone's capabilities and carrier settings determine exactly how dual-SIM functionality works.
The right travel eSIM isn't necessarily the plan with the largest amount of data.
Instead, it should match your:
Destination
Trip duration
Data usage
Number of countries visited
Smartphone compatibility
Budget
For example:
7-day Japan trip + light usage → a smaller Japan plan may be enough.
15-day European trip + moderate usage → consider an appropriate Europe/regional option.
30-day Asian trip + heavy usage → a larger regional or destination plan may make more sense.
The goal is to choose enough data for your trip without paying for significantly more data than you expect to use.
eSIMLLY brings together destination coverage, different data allowances, and different validity periods in one travel eSIM platform.
With coverage across 160+ countries, travellers can use eSIMLLY for holidays, business trips, backpacking, family travel, and multi-destination itineraries.
Plans are available for destinations across:
Japan, Singapore, Thailand, Indonesia, South Korea, China, India and more.
France, Germany, Italy, Spain, the United Kingdom and more.
United States, Canada, Mexico and more.
Brazil and other destinations across the region.
United Arab Emirates, Türkiye and other destinations.
Multiple African destinations are covered through eSIMLLY's international coverage.
Australia and other destinations across the region.
Coverage and available plans vary by destination, so check the specific destination page before purchasing.
Start by checking whether the eSIM supports your destination. Then compare the available validity periods and data allowances with your trip length and expected usage. Finally, confirm that your phone supports eSIM.
Light users may need only a small data plan, while travellers who stream video, use social media heavily, work remotely, or make frequent video calls may need 10 GB or more. Your actual requirement depends on your usage and access to Wi-Fi.
Yes. eSIMLLY offers travel eSIM coverage across 160+ countries, with country-specific and regional options available depending on the destination.
Yes. Depending on the destination, eSIMLLY offers short-validity options such as 7-day plans.
Yes. 30-day options are available for various destinations, with the available data amounts depending on the specific destination.
Compatible dual-SIM smartphones can allow you to keep your physical SIM installed while using an eSIM for mobile data. Device and carrier capabilities determine how this works.
Your phone generally needs to support eSIM and be compatible with the relevant network/service. Check your device and carrier restrictions before purchasing.
Yes. Installing your eSIM before travelling can make the arrival process easier. Follow the activation and installation instructions provided with your eSIMLLY plan.
Depending on the plan, eSIMLLY provides options to purchase additional data or another plan when your current allowance is used.
eSIMLLY currently offers coverage across 160+ countries, with destination availability and plan options varying by country.
Choosing a travel eSIM becomes simple when you follow a few steps:
Step 1: Select your destination.
Step 2: Check your trip duration.
Step 3: Estimate your daily data usage.
Step 4: Choose an appropriate data allowance.
Step 5: Decide whether you need a country-specific or regional plan.
Step 6: Check that your smartphone supports eSIM.
Step 7: Purchase and install your eSIM before travelling.
With eSIMLLY, you can choose from travel eSIM plans covering 160+ countries, with different data allowances and validity periods designed for different types of trips.
Whether you're travelling to Japan for a week, spending two weeks exploring Europe, visiting Southeast Asia, or taking a longer international trip, you can find an eSIMLLY plan based on your destination and data requirements.
Choose your destination, select the data you need, install your eSIM, and stay connected throughout your journey.
Instant activation, hotspot included and no roaming fees in the destinations from this guide.

Montenegro isn't in EU Roam Like at Home. Compare tourist SIMs and eSIMs for Kotor, Budva and Durmitor, including cruise day stops. Plans from $2.
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