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

Planning an international trip and wondering where to buy an eSIM so you have internet access from the moment you land? Just a few years ago, the choice was simple—either use roaming or buy a local SIM card. Today, travelers have far more options, and one of the most convenient is a travel eSIM that can be purchased online and activated before departure.

As eSIM technology has become increasingly popular, many providers now offer mobile internet abroad. They differ in pricing, the number of supported countries, data allowances, customer support, and activation methods. It's no surprise that travelers frequently search Google for questions such as: Where can I buy an eSIM?, Which eSIM provider is the best?, and Is an eSIM better than roaming?

In this guide, we'll explain where to buy an eSIM for international travel, compare the available options, highlight what to consider before purchasing, and help you decide when it's better to choose an eSIM, roaming, a local SIM card, or a portable Wi-Fi router.

Why Has eSIM Become the Most Popular Way to Stay Connected Abroad?

Not long ago, using mobile internet abroad involved several inconveniences:

• Expensive roaming charges
• Buying a local SIM card
• Searching for mobile stores after arrival
• Swapping physical SIM cards
• Risking temporary loss of your regular phone number

eSIM technology eliminates most of these problems. Simply purchase a data plan online, scan a QR code, and install the profile on your phone.

The biggest advantages of eSIM

• Entirely online purchase
• Activation before your trip
• Internet works immediately after arrival
• No need to remove your physical SIM card
• Dual SIM compatibility
• Easy data top-ups
• Better security—because there's no physical SIM card to lose or steal, and deleting an eSIM profile requires device authentication such as a PIN, password, or biometric verification
• More environmentally friendly—eSIM reduces the need for plastic SIM cards, paper packaging, and shipping, helping decrease waste and environmental impact

Where Can You Buy an eSIM for International Travel?

Today, there are several ways to purchase an eSIM.

Buy directly from an eSIM provider

This is the most popular option.

Well-known providers include:

• XOXO WiFi
• Airalo
• Holafly
• Saily
• Nomad
• GigSky
• Revolut (available for selected users)
• Orange Flex (selected destinations)

When buying directly from a provider, you'll usually receive:

• A QR code
• Installation instructions
• Access to your online account
• The option to purchase additional data (where available)
• Technical support

Buy an eSIM through a mobile app

Some providers allow customers to purchase and activate eSIMs directly from their mobile apps.

Before buying, it's worth checking:

• Supported countries
• Pricing
• Data limits
• Whether you can switch or upgrade plans

Buy from your mobile carrier

An increasing number of mobile operators now offer their own travel eSIM packages.

However, these are often intended for:

• Existing subscribers
• Specific regions
• A limited number of countries

Carrier roaming packages are also frequently more expensive than independent travel eSIM providers.

Travel marketplaces

Some travel booking websites now offer eSIM packages alongside flights or accommodation.

Although convenient, it's worth comparing:

• Cost per GB
• Number of available network operators
• Customer support quality
• Top-up options

eSIM vs. Roaming – Which Is the Better Choice?

This is one of the most common travel questions.

eSIM

Advantages

• Lower costs outside the European Union
• Internet works immediately after arrival
• Fast activation
• Wide range of packages
• Access to local mobile networks

Limitations

• Requires an eSIM-compatible phone
• Many travel eSIMs are data-only and don't include voice calls

Carrier Roaming

Advantages

• No installation required
• Continue using your existing phone number
• Convenient for short trips within the European Union

Limitations

• Can be extremely expensive outside the EU
• Data allowances are often limited
• Easy to exceed your roaming allowance

eSIM vs. Local SIM Card

Local SIM cards still have their place.

They're most commonly chosen by people staying abroad for several months.

Advantages of a local SIM

• Local phone number
• Large data packages
• Often cost-effective for long-term stays

Limitations

• You need to find a local mobile store
• Registration is required in many countries
• Physical SIM replacement
• Temporary loss of access to your primary SIM card

For most tourists, however, an eSIM is the simpler and more convenient solution.

When Should You Choose a Portable Wi-Fi Router?

Although an eSIM is the best option for most travelers, there are situations where a mobile Wi-Fi router is a better fit.

A portable router is ideal when:

• You're traveling with family
• Several people need internet access
• You use both a laptop and a tablet
• Some devices don't support eSIM
• Multiple devices need to stay connected simultaneously

A portable router creates a private Wi-Fi network that several users can share at the same time.

How to Choose the Right Data Package

There's no need to buy the largest package "just in case."

1–3 GB

Suitable for:

• Maps
• Messaging apps
• Email
• Travel bookings

5–10 GB

Recommended for:

• One-week vacations
• Social media
• Uploading photos
• Occasional video streaming

10–20 GB

Ideal for:

• Remote work
• Frequent video calls
• Heavy daily internet use

30 GB or More

Best for:

• Digital nomads
• Long-term travel
• Families
• High-quality video streaming

What Should You Consider Before Buying an eSIM?

Not every eSIM package suits every traveler. Compare not only the price but also the included features.

Before purchasing, check:

• Whether your phone supports eSIM
• Whether your device is SIM-lock free
• Whether the package is local, regional, or global and covers every destination on your trip
• The number of supported countries
• Data allowance
• Package validity period
• Whether top-ups are available
• Whether hotspot sharing is allowed
• How many partner networks are available in each country
• When the validity period begins
• Whether installation is entirely online
• Whether installation is simple and well documented
• Whether 24/7 customer support is available
• Whether Android and iPhone setup guides are provided
• Whether the app or user dashboard displays real-time data usage, sends usage alerts, and clearly explains what happens after the data limit is reached
• Whether additional features such as VPN, ad blocking, or malicious domain protection are available (if offered by the provider)
• Whether the price matches the amount of data and validity period, providing the best overall value

How to Buy an eSIM Safely

Choose a trusted provider whenever purchasing an eSIM.

A reliable provider should offer:

• Secure payment methods
• Transparent terms and conditions
• Clear package information
• Installation instructions
• Technical support
• Fast customer service

Avoid anonymous websites that provide no contact details or information about their services.

Is an eSIM Really Worth It?

In most situations, yes.

The biggest benefits include:

• Avoiding expensive roaming charges outside the EU
• Fast online purchase
• No waiting in line for a local SIM card
• Internet access immediately after arrival
• Easy plan upgrades
• Keep your regular phone number through Dual SIM
• Convenient for both business trips and vacations

For people who travel several times a year, an eSIM has become one of the most practical connectivity solutions available.

Real Travel Scenarios – Which Option Should You Choose?

Weekend Trip in Europe

Best options:

• Roaming (if your destination is included)
• A small eSIM data package

Two-Week Vacation Outside the EU

Best options:

• 10–20 GB travel eSIM
• Portable Wi-Fi router for families

Multi-Country Trip

Best option:

• Regional or global eSIM with automatic switching between supported local networks

Remote Work Abroad

Best option:

• Large-data eSIM
• Portable Wi-Fi router if several devices require internet access

How to Buy and Activate an eSIM – Step-by-Step Guide

1. Choose the right data package

Check supported countries, data allowance, validity period, hotspot support, and available mobile networks.

2. Purchase your eSIM online

After payment, you'll receive a QR code or manual installation details.

3. Connect to a stable Wi-Fi network

An internet connection is required to download the eSIM profile.

4. Add a new eSIM

Open your phone's Mobile Network, SIM Manager, or Cellular Plans settings and scan the QR code.

5. Install the eSIM profile

Follow the on-screen instructions. Most QR codes can only be used once, so don't delete the profile after installation.

6. Label your eSIM

Give it an easy-to-recognize name such as Travel Internet or XOXO eSIM.

7. Set the eSIM as your mobile data line

Keep your primary SIM active for calls and text messages while using the eSIM for mobile data.

8. Enable data roaming for the eSIM profile

Most travel eSIMs require this to connect to partner networks. At the same time, disable mobile data on your primary SIM card to avoid accidental roaming charges.

9. Check your connection after arrival

Enable the eSIM profile, mobile data, and data roaming. If you can't connect, restart your phone, briefly enable Airplane Mode, or verify the APN settings if required.

Common eSIM Problems While Traveling

Using an eSIM is usually straightforward, but occasional issues can occur.

Common activation and connectivity problems

The most frequent issues include:

• No internet connection after arrival
• eSIM activation failure
• Selecting the wrong SIM for mobile data
• Data roaming disabled for the eSIM profile
• SIM-locked device
• Phone doesn't support eSIM
• QR code used on another device or deleting the profile after installation

How to Fix Connectivity Issues

If your eSIM isn't working:

• Verify that the eSIM profile is active
• Confirm that it's selected for mobile data
• Enable data roaming for the eSIM
• Turn Airplane Mode on and off to refresh the connection
• Restart your phone
• Manually select a partner network
• Check APN settings if required
• Contact customer support if needed

How to Avoid Unexpected Costs

Before purchasing, check what happens after your data allowance is used. Some providers reduce connection speeds, while others require you to buy another package.

Also review:

• Package validity
• Top-up availability
• Any additional fees

To prevent unnecessary roaming charges, disable mobile data on your primary SIM card and use only your eSIM for internet access.

Practical Tips Before and During Your Trip

Before departure

• Set mobile data usage alerts
• Download offline maps (such as Google Maps)
• Save tickets, reservations, and important documents offline
• Sync large files only through trusted Wi-Fi networks
• Install and configure your eSIM before traveling using a stable Wi-Fi connection

After arrival

• Confirm that the eSIM profile is active and selected for mobile data
• Enable data roaming if required by your provider
• Refresh the network connection by briefly enabling Airplane Mode
• If your phone doesn't connect automatically, manually select a partner network
• Restart your phone or contact customer support if necessary

Frequently Asked Questions (FAQ)

Where is the best place to buy an eSIM before traveling?

The safest option is purchasing directly from a trusted eSIM provider. You'll receive installation instructions, technical support, and access to an online dashboard for managing your data plan.

Can I buy an eSIM several days before my trip?

Yes. In fact, it's recommended. Install your eSIM about two days before departure while connected to a stable Wi-Fi network. Many travel eSIMs activate only after first connecting to a supported network at your destination.

Does an eSIM work immediately after landing?

Yes. If the profile has been installed correctly, your mobile internet can begin working within minutes of connecting to a local network.

Can I use my eSIM and physical SIM simultaneously?

Yes. Most modern smartphones support Dual SIM, allowing you to use your eSIM for mobile data while keeping your physical SIM active for calls and SMS.

Does my phone need to be unlocked?

Yes. Your device must be SIM-lock free for an eSIM from another provider to work properly.

What happens if I run out of data?

Many providers offer convenient top-up options without requiring you to install another eSIM profile. Check whether this feature is available before purchasing.

How many eSIM profiles can my phone store?

It depends on your phone model. Most modern smartphones can store between 5 and 10 eSIM profiles, although only one (or two on selected Dual eSIM devices) can usually be active for mobile data at the same time.

Does activating an eSIM require Wi-Fi?

Yes. A stable internet connection—typically Wi-Fi—is required to download and install the eSIM profile. That's why it's best to activate it before traveling.

Does an eSIM work with roaming?

Yes. An eSIM works with roaming just like a traditional SIM card. However, most travelers choose dedicated travel eSIM plans because they are often more affordable than standard carrier roaming.

Does an eSIM include a phone number?

Not necessarily. Many travel eSIMs are data-only services. You can use the eSIM for internet access while keeping your existing phone number active on your physical SIM for calls and text messages.

Final Thoughts

Buying an eSIM before your trip is one of the easiest ways to ensure reliable internet abroad without the stress of expensive roaming charges. Compared with local SIM cards or traditional roaming, an eSIM offers convenient online purchasing, quick activation, and seamless access to local mobile networks in countries around the world.

Before choosing a provider, compare not only pricing but also the number of supported countries, data allowance, top-up options, technical support, and activation process. This will help you find the best solution whether you're planning a weekend city break, a family vacation, a multi-country adventure, or a business trip.

If you're looking for a reliable way to stay connected without swapping your physical SIM card, it's worth exploring XOXO WiFi eSIM. With a wide selection of local, regional, and global data packages, quick online activation, and responsive customer support, you'll be ready to connect from the moment you land.

Tags

Share

• 
• 

Copy

Previous post Next post

Also check

27.07.2026

eSIM vs. Roaming – Which Is Better for International Travel? A Comparison of Costs, Speed, and Convenience

27.07.2026

How to Ensure Reliable Internet in Spain During Two Weeks of Remote Work and Daily Video Calls

27.07.2026

Multi-Country Travel eSIM – Which Option Offers the Best Value for Money? Comparison and Ranking