Where to Buy an eSIM for International Travel? A Complete Guide to the Best Mobile Internet Options Abroad

Planning a holiday, city break, business trip, or a journey lasting several weeks and wondering where to buy an eSIM for international travel? Today, you no longer need to look for a local mobile operator’s store after landing or replace your physical SIM card. You can buy a mobile data plan online before departure, install it on your phone, and start using mobile data when you arrive at your destination.

There are, however, more and more options to choose from. You can buy an eSIM for international travel from specialized providers such as XOXO WiFi, Airalo, Holafly, or Saily, through financial apps such as Revolut, and in some cases directly from a local mobile operator. Other alternatives include roaming with your home operator, a traditional local SIM card, or a portable WiFi router.

Which option should you choose? In this guide, we explain where to buy an eSIM for mobile internet abroad, how the available solutions differ, how to choose the right data package, and what to check before purchasing.

What is an eSIM and how does it provide internet abroad?

An eSIM (embedded SIM) is a digital equivalent of a traditional SIM card. Instead of inserting a plastic card into your phone, your device has a built-in module on which a mobile operator profile can be stored.

For international travel, this mainly means greater convenience. You can purchase a data package online and then install the eSIM using a QR code or by following the provider’s instructions.

You do not need to:

• remove your primary SIM card,
• buy a physical SIM after arrival,
• look for a local mobile operator’s store,
• wait for a physical SIM to be delivered,
• change your regular phone number.

On phones that support Dual SIM, you can keep your primary SIM active and use the eSIM for mobile data abroad. This allows you to keep your existing phone number while using a separate travel data package for internet access.

It is worth remembering that many travel eSIMs are data-only services. This means they primarily provide internet access, while calls can be made through apps such as WhatsApp, Messenger, FaceTime, or Signal.

Where to buy an eSIM for international travel?

The most convenient option is usually to buy an eSIM online before your trip. Travelers currently have several options that differ in price, customer service, country coverage, and available data packages.

1. XOXO WiFi – buy an eSIM online before departure

One option for travelers is XOXO eSIM, an eSIM designed to provide mobile internet during international trips.

It is particularly useful if you want to arrange your internet connection before departure. After purchase, you receive the information needed to install your eSIM and can prepare your phone before your trip begins.

XOXO WiFi offers packages for individual countries as well as selected regions and multi-country trips. This can be useful for holidays, business travel, multi-destination trips, and remote work.

Key advantages include:

• online eSIM purchase,
• no physical SIM card,
• installation before departure,
• plans for many popular destinations,
• no need to search for a local SIM store after landing,
• the ability to keep your primary SIM card in your phone,
• hotspot support with many packages,
• customer support if you experience installation or connection problems.

For travelers who value access to customer support and assistance before departure or during setup, this may be an important advantage compared with relying exclusively on international self-service platforms.

2. Airalo – a large eSIM marketplace

Airalo is one of the most recognizable international eSIM providers for travelers. It offers local, regional, and global packages.

One of its main advantages is the wide selection of destinations and the ability to manage eSIMs through an app. However, when comparing offers, you should check the conditions of the specific package, including the amount of data, validity period, supported network, hotspot availability, and activation rules.

3. Holafly – eSIM with a focus on unlimited plans

Holafly is popular primarily among travelers looking for plans advertised as unlimited.

With this type of package, it is important to carefully read the fair-use terms. “Unlimited internet” does not always mean you can use an unlimited amount of data at maximum speed throughout the day. The operator or provider may apply a Fair Usage Policy (FUP), hotspot restrictions, or reduced speeds after a certain level of usage.

4. Saily – app-based eSIM management

Saily is another international eSIM provider aimed at travelers.

As with other platforms, it is worth comparing more than just the price. Check the amount of data, validity period, available networks, and package conditions before purchasing.

5. Revolut – eSIM as an additional in-app service

Revolut users may also have the option to purchase eSIM data packages directly through the app.

This can be convenient for people who already use the Revolut ecosystem and want payments and some travel services in one place. However, this does not automatically mean that Revolut will offer the best-value package for every destination. Compare the price per GB and validity period with providers that specialize in mobile internet for travelers.

6. eSIM from a local mobile operator

In some countries, you can purchase an eSIM directly from a local mobile operator.

This can provide attractive prices and access to local tariffs, but it may not always be as convenient for tourists. Purchasing one may require:

• registering your personal details,
• presenting your passport,
• visiting a store,
• downloading a local app,
• using a local payment method.

If your trip lasts only a few days or two weeks, a travel eSIM purchased before departure may be simpler.

XOXO WiFi, Airalo, Holafly, Saily, or Revolut – where should you buy an eSIM?

There is no single provider that is best for everyone. An offer that works well for a weekend in London may not be suitable for three weeks in Japan or a month of remote work in Thailand.

Instead of choosing based only on the brand name, compare the specific features of each package.

The key takeaway is simple: do not choose an eSIM based on price alone. A package that costs slightly less may be less practical if it has a shorter validity period, a smaller data allowance, or does not allow hotspot sharing.

eSIM, roaming, local SIM, or WiFi router – what should you choose abroad?

An eSIM is not the only way to get internet while traveling. It is worth comparing it with the three main alternatives.

eSIM

The main advantage is convenience. You can purchase it online and install the profile before departure.

Best for: tourists, business travelers, and people who mainly need internet access on their smartphone.

Roaming

Within the European Union, roaming may be sufficient thanks to the Roam Like at Home rules, although your operator may apply specific mobile data limits.

Outside the EU, the situation is different. Standard roaming data can be considerably more expensive, so check your operator’s rates and available roaming packages before departure.

Best for: travelers within the EU or those with a suitable roaming package.

Local SIM card

A local SIM can offer good value, particularly for longer stays. The disadvantages are the potential formalities and the need to find a point of sale.

Best for: travelers staying in one country for several weeks or months.

Portable WiFi router

A mobile router creates a private WiFi network that can be shared by several devices at the same time.

It can be a practical option for:

• families,
• groups of friends,
• business teams,
• laptop and tablet users,
• travelers whose phones do not support eSIM.

With XOXO WiFi, you can therefore choose a solution based on how you travel: an eSIM for individual mobile data use or a portable WiFi router when the connection needs to be shared across multiple devices.

What should you look for when choosing an eSIM for international travel?

Price matters, but it should not be your only criterion.

Data allowance

Consider what you will use mobile internet for.

As a general guide:

• 1–3 GB – maps, messaging, email, and occasional web browsing,
• 5–10 GB – a typical one-week trip with social media and navigation,
• 10–20 GB – intensive smartphone use, multimedia, and hotspot sharing,
• 20 GB or more – remote work, frequent video streaming, and internet sharing.

If you regularly watch videos, participate in video calls, or share your connection with a laptop, your data consumption will be significantly higher.

Package validity

A 10 GB package valid for 7 days and a 10 GB package valid for 30 days are two very different offers. Match the validity period to the length of your trip.

Also check when the eSIM validity period begins – at purchase, installation, or only after the first connection to a supported network at your destination.

Mobile operator and coverage

An eSIM provider does not necessarily operate its own mobile network in your destination country. Instead, the eSIM may connect to the network of a local partner operator.

Before buying, check:

• which network the eSIM uses,
• whether LTE/4G or 5G is available,
• what coverage is like outside major cities,
• whether automatic or manual network selection is supported.

This is particularly important when traveling to islands, mountains, national parks, or less populated regions.

Hotspot and tethering

If you want to share your phone’s internet connection with a laptop or tablet, check whether the eSIM package supports hotspot use.

This is particularly important for remote workers.

FUP on unlimited plans

If you are considering an “unlimited” plan, check its Fair Usage Policy.

After a certain amount of data usage:

• internet speed may be reduced,
• hotspot use may be restricted,
• full speed may only return the following day.

Always read the package details rather than relying solely on the word “unlimited.”

Customer support

Customer support is often overlooked in eSIM comparisons, but it becomes particularly important when your internet does not work after landing.

Check whether the provider offers assistance with:

• eSIM installation,
• mobile data settings,
• APN configuration,
• selecting the correct network,
• activation problems.

Quick access to support may be more valuable than saving a small amount on the price of the package.

Checklist before buying an eSIM for international travel

Before clicking “buy,” check:

• Does my phone support eSIM?
• Is my device SIM-lock free?
• Does the package cover my destination country?
• How many GB are included?
• How long is the package valid?
• When does the validity period begin?
• Which local network does the eSIM use?
• Is 4G/LTE or 5G available?
• Can I use a hotspot?
• Is there a Fair Usage Policy?
• Can I top up the package?
• Does the provider offer technical support?
• Do I need a single-country package or a regional plan covering several countries?

Answering these questions makes it much easier to find the best eSIM for your trip.

How to buy and activate an eSIM before your trip

The process is usually straightforward.

Step 1. Choose your country or region

If you are visiting only one country, a local package will usually be sufficient.

If you are traveling through several countries in Asia or Europe, for example, a regional eSIM may be more convenient because it can work across multiple destinations without requiring a new profile every time you cross a border.

Step 2. Choose your data allowance and validity period

Match the package to the length of your trip and your expected mobile data usage.

Step 3. Install the eSIM profile

After purchase, you will receive installation instructions, usually involving a QR code or details for adding the eSIM manually.

It is best to complete the installation before departure while connected to a stable WiFi network.

Step 4. Set the eSIM as your mobile data line

After arriving at your destination, select your travel eSIM as the line used for mobile data.

Step 5. Enable data roaming for the travel eSIM

With many international eSIMs, data roaming must be enabled because the eSIM connects to the network of a local partner operator.

At the same time, you can disable mobile data on your primary SIM card to reduce the risk of accidental roaming charges.

What should you do if your eSIM does not work abroad?

No internet connection after landing does not necessarily mean there is a problem with the eSIM itself.

First:

1. Check whether the eSIM profile is enabled.
2. Make sure the eSIM is selected for mobile data.
3. Enable data roaming for the eSIM.
4. Turn airplane mode on and off.
5. Restart your phone.
6. Check the APN settings if required by the provider.
7. Try manually selecting a supported mobile network.

If the problem continues, contact your eSIM provider’s customer support.

This is another reason to consider customer service availability rather than comparing packages based solely on price.

Is an eSIM for international travel worth it?

In many situations, yes – particularly when traveling outside the European Union.

However, the biggest advantage of an eSIM is not always the lowest possible price per GB. For travelers, predictable costs and convenience can be equally important.

When you purchase a specific data package, you know in advance how much data you receive and how much you will pay. You also avoid searching for a local SIM card after arrival.

An eSIM is particularly practical if:

• you are traveling outside the EU,
• you want internet access from the beginning of your trip,
• you do not want to replace your physical SIM card,
• you are visiting several countries,
• you need internet for maps and messaging apps,
• you work while traveling,
• you want better control over mobile data costs.

You do not always need an eSIM, however. If you are traveling within the EU and already have a large roaming data allowance included in your mobile plan, regular roaming may be sufficient.

The best option therefore depends on your destination, length of stay, required data allowance, and how you plan to use the internet.

Local, regional, or global eSIM – which should you choose?

Travel eSIM providers generally offer three main types of packages.

A local eSIM covers one country. It can be a good choice for a two-week holiday in Japan, Turkey, or the USA.

A regional eSIM works across several or even dozens of countries within a specific region. It may be more convenient for trips around Europe, Asia, or North America.

A global eSIM covers a large number of countries and is primarily aimed at frequent international travelers.

If you are visiting several countries during one trip, compare the cost and convenience of buying several local eSIMs with using one regional package.

FAQ – where to buy an eSIM and how to use mobile internet abroad

Where is the best place to buy an eSIM for international travel?

The most convenient option is usually to purchase an eSIM online before departure. Options include XOXO WiFi, Airalo, Holafly, Saily, Revolut, and local mobile operators. The right choice depends on your destination, data allowance, validity period, supported networks, hotspot availability, and price.

Can I buy an eSIM before traveling?

Yes. This is one of the biggest advantages of eSIM technology. You can purchase and install an eSIM before leaving home, meaning your phone is prepared before your trip. Just make sure you check the activation rules of the specific package.

Does an eSIM work in every country?

Not every eSIM package works in every country. Availability depends on the provider and its agreements with local mobile operators. However, local, regional, and global packages are available, making it possible to use a single eSIM across multiple countries.

Can I keep my regular phone number while using an eSIM?

Yes, if your phone supports Dual SIM. You can keep your primary SIM active for your regular phone number while using the travel eSIM for mobile data.

Can I make calls and send SMS messages with an eSIM?

It depends on the specific package. Many travel eSIMs are data-only and are designed primarily for internet access. In this case, you can make calls and send messages using apps such as WhatsApp, Messenger, or FaceTime.

How many GB do I need for a one-week trip?

For basic use of maps, messaging apps, and email, around 3–5 GB may be enough. If you regularly use social media, 5–10 GB may be a more practical choice. Travelers who watch videos, work remotely, or use a hotspot should consider 10–20 GB or a larger package.

Is an eSIM better than a local SIM card?

For short trips, an eSIM is generally more convenient because you can buy it before departure and do not need to visit a mobile operator’s store. For stays lasting several months, however, a local SIM card may offer better value.

Can I share an eSIM internet connection with my laptop?

With many packages, yes. Hotspot availability depends on the terms of the specific plan. Before purchasing, check whether tethering is allowed and whether a separate data limit applies.

Summary – where to buy an eSIM with mobile internet abroad

If you are wondering where to buy an eSIM for international travel, there are now far more options than there were just a few years ago. You can choose a specialized provider such as XOXO WiFi, Airalo, Holafly, or Saily, purchase a package through Revolut, or use an offer from a local mobile operator.

There is no single best eSIM for every traveler. Before buying, compare the data allowance, validity period, available networks, activation rules, hotspot support, Fair Usage Policy, and customer support.

For a short international trip, an eSIM is one of the most convenient ways to stay connected: you can purchase it online, prepare your phone before departure, and avoid searching for a local SIM card after landing.

If you are planning a holiday, business trip, or multi-country journey, check the available XOXO eSIM packages for your destination and choose the data allowance and validity period that match the length of your trip. This way, your internet can be ready when you need it – from the very beginning of your journey.

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