Best eSIM for Travel: 7 Providers Compared and How to Choose

A good travel eSIM is one of the simplest upgrades you can make to a trip. You land, switch on your phone and have maps, ride apps and messages straight away – no hunting for a SIM shop, no surprise roaming bill. The hard part is choosing, because the plans look alike but work very differently.

This guide explains what actually matters, then compares seven popular providers and who each one suits. We compared the providers' published plans and terms and independent test reports; prices and plans change often, so always check the current offer before you buy.

Quick picks

• Most destinations: Airalo
• Best value for light-to-medium use: Saily
• Heavy users who want "unlimited": Holafly
• Japan and South Korea: Ubigi
• Multi-country trips without planning ahead: Roamless

Before you buy: 5 things to check

1. Is your phone eSIM-ready and unlocked?

Most iPhones from the XS onwards and many recent Android phones support eSIM, but not all models sold in every country do. Your phone must also be unlocked – a phone locked to your home carrier won't accept another provider's eSIM. Check your phone's settings or use the provider's compatibility checker. Many providers won't refund a plan bought for an incompatible phone.

2. Data packs or unlimited?

Data packs (for example 5 GB for 15 days) are usually cheaper and run at full speed until the data is gone. Unlimited plans are priced by the day, but almost all have a fair-use limit: after a certain amount of data per day, speed drops sharply. For maps, messaging and social media, a data pack is usually enough. If you stream video or work online, unlimited can be easier – read the fair-use terms first.

3. Hotspot rules

If you want to share data with a laptop or a travel partner, check the hotspot policy. Some providers allow it freely; some unlimited plans restrict tethering to a small daily allowance.

4. Country, regional or global plan?

A plan for one country is usually the cheapest. Visiting several countries? A regional plan (Europe, Asia, Latin America) saves you buying and installing several eSIMs. Watch the borders: a plan for one country may not work next door.

5. Phone number, calls and texts

Most travel eSIMs give you data only. That's fine for WhatsApp calls, but you won't receive normal SMS on the eSIM. Keep your home SIM in the phone (switch off its roaming data) so you still get bank and security codes by text.

The 7 best travel eSIM providers

1. Airalo – best for the widest choice of destinations

Airalo has one of the largest catalogs of country, regional and global plans, which makes it a safe choice for unusual destinations and multi-stop itineraries. The app is easy to use, it checks whether your phone is compatible before you pay, and repeat buyers collect credit for future plans. Some plans include calls and texts.

Good to know: Prices are not always the lowest, and reviews of its customer service are mixed. Its unlimited plans slow down after a daily allowance.

Best for: Travelers going somewhere off the beaten track, or visiting several regions in one trip.

2. Saily – best value for most trips

Saily is run by Nord Security, the company behind NordVPN. Its data packs are often among the cheapest for popular destinations, and the app adds security features such as an ad blocker and protection against malicious websites. Optional extras include a virtual phone number and travel perks sold in the app.

Good to know: Some unlimited plans slow down after a daily allowance, and a few users report that new eSIMs can take a while to connect at first.

Best for: Budget-conscious travelers and anyone who uses public Wi-Fi a lot.

3. Holafly – best for unlimited data

Holafly sells unlimited-data plans priced by the number of days, which makes budgeting simple: pick your dates and stop worrying about gigabytes. Support is available around the clock by chat. Long-term travelers can choose a monthly subscription instead.

Good to know: Holafly is usually more expensive than metered plans, unlimited data is still subject to fair-use limits, and hotspot use on per-trip plans is restricted. Plans are data-only.

Best for: Heavy users on short to medium trips who would rather pay a little more than count data.

4. Ubigi – best for Japan and South Korea

Ubigi is run by Transatel, a French mobile operator, and is known for strong 5G performance in Japan and South Korea. It offers short data packs as well as monthly plans that renew automatically, and you can top up an existing eSIM instead of installing a new one.

Good to know: Plans are data-only, and it isn't always the cheapest option outside its strongest markets.

Best for: Trips to Japan or Korea, and long stays where a monthly plan is convenient.

5. Nomad – best for reliable coverage in Europe

Nomad offers fairly priced data packs with a good reputation for stable connections across Europe. The app is simple, and regional plans make city-hopping easy.

Good to know: Check the network partner for your destination and the plan's validity period before buying.

Best for: Europe trips where you want predictable data and price.

6. Jetpac – best budget pick for frequent flyers

Jetpac's data packs are aimed at budget travelers, and it often runs low-price offers. Its standout perk is free airport lounge access if a flight is delayed for an hour or more, and on many plans essential apps such as maps and messaging keep working even after your data runs out.

Good to know: Plans are mostly data-only, and the perks come with terms and conditions worth reading.

Best for: Light data users who fly a lot.

7. Roamless – best for country hoppers

Roamless works differently: you can top up a global balance that is charged per megabyte in whichever country you are in, and the credit doesn't expire. You can also buy regional data plans, and in-app calling is available for a few cents a minute.

Good to know: Pay-as-you-go data costs more per gigabyte than a fixed plan, so it's best for flexible trips rather than heavy use.

Best for: Travelers who visit many countries or don't know their route in advance.

How to install a travel eSIM

1. Buy the plan at home on Wi-Fi, a day or two before you fly.
2. Install it by scanning the QR code or using the provider's app. Label it clearly, for example "Travel data".
3. Set it as your mobile data line, and turn on data roaming for the eSIM only – travel eSIMs usually need it.
4. Keep your home SIM on for calls and texts, but switch off its roaming data so it doesn't run up charges.
5. When you land, switch on the eSIM. If it doesn't connect, restart your phone or choose a network manually.

Don't delete an eSIM until your trip is over and you're sure you won't top it up – many can only be installed once.

eSIM, roaming or local SIM?

• Your home carrier's roaming is easiest – nothing to install – but it can be expensive outside free-roaming zones. Check your carrier's day passes first.
• A local SIM bought at the airport can be the cheapest for long stays and usually includes a local number, but you need an unlocked phone with a SIM slot, often your passport, and time at a shop.
• A travel eSIM is the best balance for most trips: cheap, instant and installed before you leave.

Sorting your data is item 16 on our day-before-you-travel checklist. Traveling alone? Read why having data on arrival matters in our safety tips for women traveling solo.