Compare 8 of the best eSIM providers for international travel, including Airalo, Holafly, Saily, Nomad, Ubigi, GigSky, aloSIM, and Roamless.
Traveling with mobile data used to mean buying a local SIM at the airport or accepting your home operator’s roaming rates.
A travel eSIM gives you another option. You can buy and install a data plan before your trip, keep your physical SIM in the phone, and connect when you arrive.
The best eSIM providers offer local, regional, and global plans. They differ in coverage, data allowances, unlimited plans, hotspot rules, calls and texts, and validity.
This guide compares eight popular providers. The list is not ranked from best to worst. The right choice depends on your destination, trip length, data use, and required features.
What Is a Travel eSIM Provider?
A travel eSIM provider sells prepaid mobile plans that can be installed digitally on a compatible device.
Most plans are designed for temporary international use. They let travelers access local mobile networks without removing their main SIM card or signing a long-term contract.
Many travel eSIMs are data-only. You can still use WhatsApp, FaceTime, Signal, or Messenger, but traditional calls and SMS may not be included.
Before buying, make sure your phone supports eSIM and is not locked to your current operator. For more background, read our eSIM vs. physical SIM comparison.
Key Takeaways
- Airalo offers a broad selection of local, regional, and global plans.
- Holafly is mainly known for unlimited-data travel plans.
- Saily combines travel data with built-in security features.
- Ubigi supports frequent travel and longer-term recurring plans.
- GigSky stands out for cruise and offshore connectivity.
- Roamless uses one reusable global eSIM with pay-as-you-go and fixed-plan options.
Pro tip:
Check calls, SMS, hotspot rules, and fair-use policies before purchase.
Best eSIM Providers Compared
The providers below have different plan structures and benefits. Exact prices are not included because they change by destination, data amount, and validity.
| Provider | Best For | Plan Types | Main Differentiator |
|---|---|---|---|
| Airalo | Broad plan selection | Local, regional, and global | Wide range of destinations and package sizes |
| Holafly | Heavy data use | Unlimited and subscription plans | Unlimited-data focus |
| Saily | Security-conscious travelers | Country, regional, and global | Built-in security and privacy features |
| Nomad | Flexible prepaid data | Fixed, unlimited, regional, and global | Several data and validity options |
| Ubigi | Frequent and long-term travel | One-off, monthly, and annual | Reusable eSIM and recurring plans |
| GigSky | Cruise travel | Land, cruise, offshore, and global | Connectivity at sea |
| aloSIM | Simple prepaid plans | Country and regional | Phone-number offer through Hushed |
| Roamless | Frequent global travel | Pay-as-you-go and fixed plans | One global eSIM and non-expiring credit |
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Airalo
Airalo offers local plans for individual countries, regional plans for multi-country trips, and global plans for frequent travelers.
Users can buy and manage plans through the Airalo app. Most packages focus on data, although selected global plans also include calls and texts.
Best for: Travelers who want a wide choice of destinations and data allowances.
Airalo covers simple single-country trips and more complex itineraries. Check the local network, validity, and included services for each package.
Holafly
Holafly is best known for unlimited-data eSIMs in many popular destinations.
Its plans are often sold by trip duration rather than a fixed number of gigabytes. This is convenient for travelers who stream, use navigation throughout the day, or do not want to track data.
Best for: Travelers who prefer unlimited data and predictable upfront costs.
Plans may be subject to fair-use policies, while hotspot sharing can have separate limits. Check the exact destination conditions.
Saily
Saily offers country, regional, and global prepaid eSIM plans through a simple mobile app.
The app also includes security features such as web protection, an ad blocker, and virtual location options. Automatic top-ups are available on supported plans.
Best for: Travelers who value simple setup and extra security tools.
Saily plans are generally data-only, so standard calls and SMS are not included.
Nomad
Nomad sells prepaid eSIMs for individual countries, regions, and global travel.
Its store includes several data sizes and validity periods, with add-ons available for many plans. Some destinations also have unlimited packages.
Best for: Travelers who want flexible options for short holidays or longer trips.
Network availability, 5G access, and activation rules can vary between packages.
Ubigi
Ubigi provides travel eSIM plans across more than 200 destinations.
Depending on the destination, users can choose one-off packages, recurring monthly plans, or annual plans. The eSIM can remain installed for future purchases.
Best for: Frequent travelers, longer stays, and users who want recurring data options.
Ubigi also supports selected tablets and eSIM-compatible laptops. Check device compatibility and cancellation conditions for recurring plans.
GigSky
GigSky provides country, regional, and global eSIM plans, but its main difference is maritime connectivity.
It offers Cruise + Land and sea-only plans for supported ships, helping travelers stay connected outside normal land-based mobile coverage.
Best for: Cruise passengers who need connectivity at sea and on land.
Cruise plans cover selected ships and routes, so confirm support before purchasing.
aloSIM
aloSIM offers prepaid country and regional eSIM plans installed through its app or a QR code.
Its eSIM provides mobile data. Most packages also include access to an international phone number through the separate Hushed app.
Best for: Travelers who want straightforward prepaid data with a phone-number benefit.
Review the Hushed number’s validity and conditions before relying on it for the whole trip.
Roamless
Roamless uses a single global eSIM that works across more than 200 destinations.
Travelers can use pay-as-you-go credit or buy fixed data plans. Roamless Credits do not expire and can also be used for supported calls and SMS.
Best for: Frequent travelers who want one reusable eSIM and a balance that carries between trips.
Compare fixed and pay-as-you-go options because value can differ by country.
How to Choose the Best eSIM Provider
Check Destination Coverage
Do not only check whether the country is listed. Review the local network, available speed, and whether one plan covers every country on your itinerary.
A regional plan is often simpler for multi-country travel, while separate local plans may provide more data.
Estimate Your Data Usage
Light use includes maps, messaging, and email. Moderate use adds social media, music, and browsing. Heavy use includes streaming, video calls, large uploads, and hotspot use.
Travel can increase map, translation, photo, and transport-app usage, so leave some margin. You can also review current mobile data usage statistics for broader consumption trends.
Compare Fixed and Unlimited Plans
Fixed plans provide a defined amount of data for a set period. Unlimited plans reduce the risk of running out but may include fair-use limits or reduced speeds after heavy use.
Travel eSIM packages are usually prepaid. Our guide to prepaid mobile plans explains how prepaid data, validity, and usage allowances generally work.
Check Calls, Texts, and Hotspot Support
Many travel eSIMs provide only data.
Check whether you need a local number, traditional calls and SMS, hotspot sharing, or access to your existing SIM for verification messages.
With dual SIM, you can often keep your main number active while using the eSIM for data. Roaming charges may still apply to the main SIM.
Review Activation and Validity
Some plans start when they connect to a supported network. Others start after installation or manual activation.
Read the instructions before installing. Also check whether unused data expires and whether the plan can be topped up or reused.
Are Travel eSIMs Better Than Roaming?
Travel eSIMs often provide clearer prepaid costs and more plan choices than standard roaming. They can be bought before departure without replacing the main SIM.
Roaming may be simpler when your operator already includes the destination, the trip is very short, or you need your normal number for calls and texts.
An eSIM is not always cheaper. Compare the full cost, included data, network, speed, and convenience.
How eSIM Providers Make Money
Common eSIM business models include:
- Prepaid data packages
- Unlimited plans
- Pay-as-you-go credit
- Regional and global bundles
- Monthly and annual subscriptions
- Voice and SMS add-ons
- Affiliate partnerships
- White-label eSIM services
White-label services can allow an MVNO or digital brand to sell eSIM connectivity without owning a mobile network.
Behind the app, providers need to manage plan catalogs, data usage, prepaid balances, payments, subscriptions, refunds, and partner settlements.
These offers may combine usage-based pricing with recurring or subscription billing.
This requires telecom billing software that can process mobile usage and support several pricing models.
Tridens Monetization helps telecom and digital service providers configure offers, rate usage, manage balances and subscriptions, issue invoices, and settle with partners.
Conclusion
The best eSIM provider depends on how and where you travel.
Airalo has a broad plan selection, while Holafly focuses on unlimited data. Saily adds security tools, and Nomad provides flexible prepaid packages.
Ubigi suits frequent or longer-term use. GigSky covers supported cruises, aloSIM combines data with a phone-number offer, and Roamless provides one reusable global eSIM.
Before buying, check the destination, network, data allowance, validity, hotspot rules, and whether calls or SMS are included.
Best eSIM providers FAQ
What is the best eSIM provider for international travel?
There is no universal best provider. Airalo offers a broad plan selection, Holafly focuses on unlimited data, GigSky covers supported cruises, and Roamless is useful for travelers who want one reusable global eSIM.
Can I keep my normal phone number while using a travel eSIM?
Yes. On a dual-SIM device, you can usually keep your main SIM active for your normal number and use the travel eSIM for mobile data. Check your operator’s roaming charges before making calls, sending texts, or receiving certain services abroad.
When should I install a travel eSIM?
It is usually best to install the eSIM before departure while you have reliable Wi-Fi. However, check the activation rules first because some plans begin when installed, while others begin only after connecting to a supported network.
Are unlimited eSIM plans really unlimited?
Unlimited plans normally provide continuous data access, but they may include fair-use policies, daily high-speed allowances, hotspot limits, or reduced speeds after heavy usage.
Is a travel eSIM always cheaper than roaming?
No. A travel eSIM can provide better prepaid rates and more control, but roaming may be cheaper or simpler when your mobile plan already includes the destination or the trip is very short.
