Every eSIM comparison you will read ends with a winner. Ours does not, and that is not a cop-out — it is the finding. The four big travel eSIM providers are built for different trips, and the one that is wrong for a two-week beach holiday is the right one for a three-month round trip.
What follows is what actually separates them, and the four questions that decide which one you should buy. If you are not sure you need an eSIM at all, start with our guide to what an eSIM is and when it pays off.
Contents
The four questions that decide it
Coverage numbers and headline prices are the things comparisons argue about. They are rarely what makes a plan good or bad on the ground. These four are.
- Which local network does the plan actually use? An eSIM is a reseller of someone else's radio towers. In most countries one carrier has noticeably better rural coverage than the others, and the provider's product page usually names the partner network. If it does not, that is information too.
- Does it allow hotspot use? If you plan to share the connection with a laptop or a travel companion, check this before you buy. Some unlimited plans allow tethering, some cap it, some forbid it — and it is the single most common complaint in reviews.
- What does 'unlimited' mean in the small print? Unlimited plans almost always run at full speed up to a daily amount and then throttle. The number that matters is that daily amount, not the word on the box.
- When does the clock start? Time-based plans start counting on first connection, on purchase, or at a time you set — and the difference can cost you a day. Check it if you land late in the evening.
eSIM pricing changes constantly, differs by destination, and is routinely discounted for new customers. Any table of exact figures is wrong within months — and wrong in a way nobody notices.
Compare the actual plans for your actual destination on the day you buy. That takes five minutes and beats any article, including this one.
The four providers
The largest travel eSIM marketplace, covering more than 200 destinations. Its distinguishing feature is not price but reach: regional bundles covering a continent, and global bundles for people who cross several borders on one trip.
Pros
- The broadest country catalogue of the four
- Regional and global multi-country bundles
- Established, with a long track record
Cons
- Data-only on most plans — no local number
- Blocked from inside Turkey (see below)
Holafly built its business on unlimited, time-based plans rather than gigabyte allowances. That suits heavy users who would rather not count — but 'unlimited' here means unlimited at reduced speed after a daily threshold, and hotspot use is restricted on many plans.
Pros
- Time-based unlimited plans, nothing to track
- Good fit for long stays in one country
- Round-the-clock chat support
Cons
- Fair-use throttling after a daily amount — check the figure for your destination
- Hotspot use restricted on many plans
- Blocked from inside Turkey (see below)
Saily is Nord Security's travel eSIM — the same company behind NordVPN. That shows in the product: the app bundles security features alongside the data plan, and privacy is the pitch rather than raw coverage numbers.
Pros
- Clean, modern app
- Security features bundled with the plan
- Useful if you already use Nord Security products
Cons
- Data-only on standard plans
- Smaller catalogue than Airalo
- Blocked from inside Turkey (see below)
Yesim's distinguishing feature is the optional virtual phone number — genuinely useful if you need to receive an SMS verification code while travelling, which data-only plans cannot do. Activation happens inside the app, with no QR code to scan.
Pros
- Optional virtual phone number for SMS verification
- Activation without a QR code
- Straightforward app for first-time users
Cons
- Smaller catalogue than Airalo
- Blocked from inside Turkey (see below)
Which one for which trip
| Your trip | Start with | Because |
|---|---|---|
| One country, two weeks, normal use | Airalo | The widest choice of single-country plans, so you can pick on network and price |
| Several countries on one trip | Airalo | Regional and global bundles avoid buying a new plan at every border |
| Heavy use, one country, longer stay | Holafly | Time-based unlimited — but check the daily threshold and the hotspot rule first |
| You need to receive an SMS code | Yesim | The virtual number does what a data-only plan cannot |
| You already use Nord Security products | Saily | One account, one app, security features included |
This table is a starting point, not a verdict. Run the four questions above against the specific plan for your specific destination before you pay — the answers differ by country even within the same provider.
One country where none of this applies
All four providers on this page are blocked from inside Turkey. Turkey's regulator began blocking travel eSIM storefronts in July 2025, and the list had grown to more than twenty by 2026 — Airalo, Holafly, Saily and Yesim are all on it.
This does not mean they do not work there. It means you cannot buy, activate or top up from inside the country. A profile you set up before you fly runs normally. We wrote this up separately: eSIM in Turkey 2026.
Provider details checked September 2026. eSIM plans, prices and terms change frequently — treat everything here as a place to start looking, not as a substitute for reading the plan you are about to buy.
Got the connection sorted?
Now work out when to go. Find the public holidays and long weekends that turn a few days of leave into a proper trip — across 31 countries in Europe.
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