Three Providers, Three Pricing Units, One Country

Airalo, Holafly and Saily are the three names that dominate the Portugal eSIM providers market, and they do not sell the same product. One sells a fixed bundle of gigabytes with a validity date attached. One sells days, with the data uncapped and the hotspot metered. One sells gigabytes with a security layer bolted onto the connection. The price tables look comparable because they are all tables with numbers in them, and they are not comparable at all.

A page comparing eSIM Portugal providers usually ends in a ranked table. This one does not, because the four products described below are not variations on one product. Our own plan ladder is the fourth model described here, and putting our own product at the top of a list we wrote would tell you nothing. What this page does instead is take each provider’s pricing unit apart, show where each model leaks money, show what each one discloses before you pay and what it holds back, and finish with a routing table: which app to open first for which kind of trip.

One caution before the detail. Prices in this category move every few months, and any figure quoted on a comparison page is a snapshot. Where a provider publishes a number, this page reports it as theirs and says so. The structures underneath the numbers are stable, and they are what the decision turns on. Check the live price at checkout; keep the reasoning from here.

Three pricing units, and why the price tables do not compare

Every travel eSIM on the Portuguese market is sold in one of four units. Once you can name the unit, half the confusion in the category disappears.

Read down the unit column and the problem is obvious. A per-gigabyte plan and a per-day plan are not two prices for the same thing. They are two different products that happen to share a country name.

The consequence is that each unit carries exactly one kind of waste and one kind of protection.

The per-gigabyte model protects your days and wastes your data. Validity on a bundle is usually generous, thirty days in many cases, so a ten-day trip fits inside it with room to spare. Nothing is lost to time. What can be lost is data: buy twenty gigabytes, use sixteen, and a fifth of the payment bought nothing.

The per-day model protects your data and wastes your days. Ten days of unlimited cannot be overspent on volume, because there is no volume to overspend. But the day count is fixed. Shorten the trip and the unused days do not come back, and the daily rate is where the whole price sits.

The matrix model exposes both dimensions to waste, and lets you fit both. Choosing gigabytes and validity separately means you can miss on two axes instead of one. It also means you can hit on two axes, which is the entire reason the model exists. A fifteen-day validity with twenty gigabytes can be sized to a trip that is fourteen days long with a nineteen-gigabyte habit.

That is the whole comparison in miniature. Everything below is detail on how each seller’s unit behaves once you are in Portugal with a phone in your hand.

Airalo eSIM Portugal: gigabytes from a marketplace

Airalo is the largest name in the category and its model is a marketplace. It does not own radio spectrum in Portugal and does not run a network. It buys access to local operator profiles and resells them, which is why the Portuguese plan attaches to NOS and to other national networks depending on which product you pick.

The unit is the gigabyte. You choose a data amount, the validity comes attached to the amount, and the price is quoted per bundle.

What that model buys you. The cheapest small bundles in the category, an app that has been polished over several years, and coverage across more destinations than any competitor. For a two-day stopover where you need one gigabyte and one map, a marketplace with a low entry tier is the rational place to buy.

What it costs you. Two things. First, bundle granularity: you buy the bundle that exists, not the bundle you need, so a seventeen-gigabyte fortnight lands on a twenty-gigabyte tier and the surplus is gone. Second, carrier choice: a marketplace profile is provisioned against a specific operator, and the app does not let you pick which one your plan attaches to.

Airalo also sells an unlimited product, and it is worth reading the asterisk. Its unlimited tiers carry a daily high-speed allowance — commonly around three gigabytes a day in this market — after which the connection is throttled to roughly one megabit. That is a perfectly reasonable product for a normal traveller. It is not the same product as a plan whose speed never drops, and the two get compared as if they were.

Tethering is permitted on Airalo plans, which matters more than the price for anyone travelling with a laptop. Keep that clause in mind for the hotspot section below.

Holafly eSIM for Portugal: days, with the hotspot metered

Holafly sells the opposite unit. Its Portuguese product is one plan shape — unlimited data — priced by the day, with the daily rate falling as the plan gets longer. The company publishes an entry rate around $6.90 for the shortest plan and a floor near $1.55 a day on the longest, which is a spread wide enough that the plan length does more to your bill than anything else you decide.

The product is the absence of a meter. That sounds like marketing and it is a real feature. A traveller who cannot stop checking a data counter is a traveller enjoying Lisbon less. If your honest habit is four gigabytes a day of video and uploads, unlimited at a fixed daily rate removes a decision you would otherwise make forty times.

The hotspot clause is where the model shows its seam. Holafly publishes hotspot as a daily allowance, around a gigabyte a day on its Portugal page, with the trip total being that figure multiplied by the days — a seven-day plan sharing roughly seven gigabytes. Independent testing of unlimited plans has reported a lower daily figure in practice. Both numbers point the same way: this is metered tethering, described in the small print as a per-day number, not as full-speed sharing.

For a phone-only trip that is irrelevant. For anyone who planned to work from a café with a laptop, it is the whole decision. A single hour of video calls plus a file sync can pass a gigabyte, and a laptop’s background updates will do it without asking.

Fair use sits behind the word unlimited. Holafly throttles heavy use under a fair-use threshold, as every unlimited travel product does. Ask what the threshold is before you buy, because the number is the difference between a plan that behaves like unlimited and a plan that behaves like a metered bundle with a marketing label.

Support is the other half of the Holafly pitch, and it is a genuine differentiator: WhatsApp plus web chat, in a long list of languages, which is a channel that works on any connection including a hotel’s.

Saily eSIM Portugal: gigabytes with a security layer

Saily is the newest of the three and the easiest to misread. It is a Nord Security product — the Lithuanian company behind NordVPN — launched in March 2024, which means it started with an engineering team, a payments stack and a privacy brand already in place.

The unit is the gigabyte, the same as Airalo. Entry tiers are inexpensive and there are no daily rates.

The difference is what ships inside the connection. Every Saily plan includes ad blocking, malicious-site blocking and a virtual location feature with a long list of countries, all applied at the network layer through DNS filtering. The company says the ad blocker alone saves a meaningful share of data, which is a plausible claim: advertising and trackers are a real fraction of what a phone downloads, and blocking them before they load is both a privacy feature and a data feature.

For a traveller who would otherwise pay for a VPN separately, that bundle is worth something. For a traveller who would not, it is a feature you are carrying and not using, and it does not make the data cheaper.

Where the model is thin. Saily does not disclose which Portuguese carrier a plan attaches to before purchase, and its live support is inside the app — which is the one place you cannot reach when the problem is that you have no data. It also sells an unlimited tier with a daily high-speed allowance, commonly around five gigabytes a day, then a throttle to about one megabit. Tethering is permitted and not separately throttled, which is a point in its favour over the per-day model.

Refunds on unused plans run thirty days, which is a shorter window than Holafly’s but a cleaner rule: unused means unused.

The test that makes three eSIM Portugal providers comparable

No comparison of these three means anything until two numbers exist on paper. Everyone opens the apps first and picks a plan second, which is backwards, because the apps are designed to make you choose inside their own unit.

Write down two figures before you open anything. If the second number is awkward to estimate, the trip-length ranking works through the same arithmetic tier by tier.

Days in Portugal, counted honestly. Not the flight dates. The days you will be on Portuguese soil and away from your own WiFi. A Tuesday arrival and a Tuesday departure is seven days of use, not eight.

Gigabytes per day, measured on your last trip and not guessed for this one. Your phone already knows. On iPhone, Settings, Cellular, and scroll to the current period; on Android, Settings, Network, Data usage. Divide by the days in that period and you have a real number, not a guess. Most people who describe their usage as light come back with 0.8 to 1.2 gigabytes a day, and most people who describe it as heavy come back with 3 to 5.

With those two numbers you can price all four models in a minute, and the waste on each is visible before you pay, not after the trip ends.

A ten-day trip costed three ways, and the waste in each

Take a concrete case: ten days in Portugal, eighteen gigabytes. It is a common shape — a couple sharing one connection, or one person uploading photos daily.

On a per-gigabyte bundle. Buy twenty gigabytes, use eighteen, and two gigabytes of the payment bought nothing. Ten percent waste on the data axis. On the day axis there is nothing to lose, because a thirty-day validity swallows a ten-day trip. Total waste: ten percent, all of it in data.

On a per-day plan. Ten days bought, ten days used, so the day axis is clean. The data axis has no ceiling, which means the waste is invisible but real: if you use eighteen gigabytes across ten days, you paid the unlimited premium on a trip that a metered bundle would have covered. The premium is not a scam — it is the price of not thinking about it — but it is a purchase, and it should be a deliberate one.

On a matrix plan. Fifteen days and twenty gigabytes, which wastes five days and two gigabytes. On this site’s ladder that tier is $16.99, and the two unused gigabytes are worth $1.70 at the tier’s own rate. The five unused days cost nothing at this tier, because the fifteen-day 20GB plan is priced below the seven-day 20GB plan: at that size, validity is not the dimension you pay for.

The lesson is not that one model wins. It is that the per-day model hides its waste and the per-gigabyte model shows it. A visible waste of ten percent and an invisible premium you never measured feel like different things at checkout and are the same line item on the receipt.

Hotspot is the clause that separates them by more than price

Ask three questions about tethering and the eSIM Portugal providers market splits cleanly.

Is it allowed at all? On all three providers, yes. Some local Portuguese prepaid cards ban it outright, which is one of the reasons a travel eSIM beats a carrier SIM for anyone travelling with a laptop.

Is it metered separately? Here they part. The per-day provider publishes a daily hotspot allowance in the region of a gigabyte a day. The two per-gigabyte providers allow tethering against the plan’s own data, which means the hotspot is limited by the bundle, with no separate clause attached.

Does the hotspot count against the same meter? On a metered bundle, yes, by definition. On an unlimited plan with a separate hotspot allowance, the hotspot has its own ceiling and the phone’s own data does not.

The practical arithmetic, using the numbers above. A remote worker on a ten-day trip with a laptop needs about fifteen gigabytes for the laptop alone: video calls, file sync, a browser with too many tabs. On a metered twenty-gigabyte bundle that fits. On a per-day unlimited plan with a gigabyte-a-day hotspot, the laptop has ten gigabytes of ceiling — and the phone’s unlimited data cannot be moved onto the laptop, because tethering is the metered path.

That is the single most expensive misunderstanding in this category, and it is not a price difference. It is a product difference hiding inside a word.

What each one discloses before you pay, and what it withholds

A provider’s disclosure list is a better predictor of your week than its star rating. Five facts decide most trips, and they are not equally visible.

Two rows in that table are worth arguing about.

Carrier disclosure. A marketplace that will not name the network is telling you it resells a single profile. That is fine for Lisbon and Porto, where all four Portuguese networks are strong. It matters in the Alentejo, in the Douro valley and on the smaller Azores islands, where which operator your profile is pinned to decides whether you have a bar at all.

Post-allowance speed. A number here is worth more than a word. “Unlimited” without a speed after the allowance is a description of an intention, not a product specification. One megabit is a workable messaging connection and a miserable video connection; the difference between those two experiences is a single digit in a table.

If a provider will not publish the second and fifth rows, treat that as information. It is not necessarily a bad product. It is an unpriced risk.

Why the carrier question decides rural Portugal

Most eSIM providers Portugal travellers compare are marketplaces reselling the same four networks, and none of those networks wins everything. That is a measured result and not an argument: in Ookla’s first-half 2025 Portugal report, NOS took Best Mobile Network on a Speedtest Connectivity Score of 79.87, MEO took Best 5G Network, Vodafone posted the highest 5G availability at 80.3 percent and the strongest consistency at 91.7 percent, and Digi recorded the best mobile gaming score at 82.23.

Four awards, four winners. That is the argument against any product that pins you to one profile, and it is why the carrier line in the table above is not a technicality.

Where it shows up in practice. A profile pinned to one operator is excellent in the cities and variable in the interior. The Alentejo has long stretches of secondary road where one network holds a call and another drops it. The Douro valley’s cut roads and granite walls behave differently by band. On São Miguel, Terceira and Pico, coverage along the inhabited coast is solid on all four and thins out on the smaller islands, where the operator owning the backhaul reaches furthest.

The traveller’s version of this is simple: a plan that can move between networks recovers a bar in exactly the places where a single-profile plan loses one. A larger data allowance does not fix a missing signal.

For the carrier-level detail, including which operator holds which region and the APN values, the Portugal carrier guide is the long version. For how the network question changes the tier you should buy, the Portugal eSIM ranking by trip length works through it.

Support is where the three models diverge at 11pm

Support quality is usually described by channel count. The useful question is narrower: does the channel still work when the eSIM is the thing that is broken?

In-app chat fails in the exact failure case. Saily’s live chat lives inside the app. The most common serious problem with any eSIM is that the profile installs and does not connect, which means no data, which means an app that needs data to open a chat is unavailable at the moment you need it. The only workaround is a hotel network or a second line, and the whole problem is that you are standing in an arrivals hall without either.

A messaging channel survives. Holafly’s WhatsApp support works over any connection, including a hotel’s or a friend’s. That is a structural advantage of the channel, not a claim about response times, and it is the reason a per-day provider with a metered hotspot can still be the right buy for a nervous first-time eSIM user.

Email is slower and always available. This site runs support around the clock by email and in-app, which is not as fast as a live chat and does not depend on the thing that broke.

Test the channel before you buy, not after. Open the provider’s support page and ask a question about the hotspot clause. The answer tells you two things at once: whether the channel is staffed, and whether the clause is understood by the people selling it.

Refund windows, unused plans and the money that comes back

Refund terms in this category look generous and are narrower than they read, because they cover one failure and not the other.

The failure they cover: it did not work. A profile that will not install, a phone that rejects it, a destination where the plan never connects. Every serious provider refunds that, and this site refunds in full if a Portugal eSIM does not activate.

The failure they do not cover: you did not use it. A plan bought for a trip that got cancelled, a bundle sized too large, a day count that outlived the itinerary. That is your error, and a refund policy is not insurance against it. Saily offers a thirty-day window on unused plans and Holafly publishes up to six months in its own terms. The operative word in both is unused, meaning the profile was never installed against a network.

The practical rule: refund policies make a bad purchase recoverable and a badly sized purchase permanent. Size it properly and the refund question mostly disappears.

Where all three stop and a Portuguese carrier starts

All three providers sell a data product to a visitor. None of them sells you a Portuguese phone number, a contract, or anything that behaves like a local line. That is a different purchase with a different set of frictions.

Anyone staying past roughly a month should be looking at the local market, where the arithmetic changes. MEO sells an unlimited tourist plan for around €10 over fifteen days, which is the only one of the three big carriers a visitor can buy entirely online. NOS sells prepaid mobile broadband with no roaming, plus travel bundles that include an EU allowance. Vodafone sells a thirty-day traveller bundle and a domestic unlimited option. Digi, the newest entrant, prices aggressively enough to be worth a look.

The catch is administrative, not financial. Portuguese law has required identity verification for any SIM or eSIM activation since 2021, so a local eSIM means a passport upload and a registration step. MEO and NOS reject many international cards outright, and Vodafone requires a card older than three months. For a fortnight that friction is not worth it. For three months it is.

The unlimited data guide covers the local unlimited products in detail, and the carrier guide covers registration and card acceptance market by market.

How to test a provider in ten minutes without paying

There is a way to evaluate all three before spending anything, and it takes about ten minutes per provider.

Minute one: find the hotspot number. Not the word hotspot, the number. If the plan page says the hotspot is included and does not say how much, that is your answer.

Minute two: find the post-allowance speed. On a metered plan this does not exist, which is itself the answer. On an unlimited plan it is the only number that matters.

Minute three: find the validity start. Purchase, installation, or first connection. The difference can be several days, and a plan that starts at purchase is a plan that starts leaking before you fly.

Minute four: find the carrier. If the plan page names the Portuguese network, the provider is being straight with you. If it says “best local networks” and nothing else, it is reselling one profile and does not want to say which.

Minute five: find the refund condition, in the terms, not the marketing page. Look for the word unused.

Then do it twice more, and put the five answers for each provider side by side. The comparison you end up with is more useful than any star rating, because it describes the product, not the brand.

Which app to open first, by traveller

Every eSIM Portugal providers list ends the same way, with one recommendation. This one ends with five trips and five different first clicks: not a ranking, a routing table.

A business trip of four days with a laptop. Open the per-gigabyte providers first. You need a metered bundle large enough for the laptop and a hotspot clause without a daily ceiling, and the per-day model’s hotspot allowance is the constraint that rules it out. A thirty-day twenty-gigabyte bundle covers the work and leaves the validity surplus as insurance against a delayed return.

A family of four for a fortnight. Open the per-day provider first, if the phones stay together. Four phones on one shared connection is exactly the case where an uncapped plan beats four metered ones, and the hotspot ceiling stops mattering when the devices are phones and not laptops.

A solo sightseer for a week. Open the per-gigabyte providers first, and buy the smallest bundle that covers 1.2 gigabytes a day. Unlimited is a premium this trip will not consume.

A month of remote work from Lisbon. None of the three, initially. Price the local unlimited options first — MEO’s fifteen-day tourist plan at around €10 is the benchmark — and only come back to a travel eSIM if the registration friction or the card rejection is what stops you.

A two-week road trip that crosses into Spain. Open the regional product, not one of the three country plans. A Portugal-only plan stops at the border, and every provider in this comparison sells one. The Europe plan covers the crossing without a second purchase.

eSIM Portugal providers: the questions that come back

Which of the three is cheapest for a week in Portugal? Depends on your daily habit, not on the brand. Under about two gigabytes a day, a per-gigabyte bundle is cheaper because you are not paying for a ceiling you will not reach. Above roughly four gigabytes a day, the per-day plan becomes the cheaper way to buy headroom, because a metered bundle has to cover your worst day and not your average one.

Does Holafly really give unlimited data in Portugal? It gives uncapped data with fair-use throttling behind it and a daily hotspot allowance in front of it. For a phone-only trip that behaves like unlimited. For a laptop it does not, because the tethering path is metered even when the phone’s data is not.

Can I use Airalo in Portugal on 5G? Airalo’s Portuguese plans run on local networks that carry 5G, and whether your phone sees 5G depends on the profile, the band support in your handset and where you are standing. The band that matters indoors in Portugal is n28 at 700 MHz and n20 at 800 MHz, the compatibility list names the handsets that carry both, and a phone without them will fall back to 4G in exactly the buildings where the icon matters least.

What does Saily’s built-in ad blocker do? It filters at the DNS layer, so ads and trackers are stopped before they download. That is a privacy feature first and a data feature second, and it reduces consumption by a real but modest margin. It does not make up for a bundle that is too small.

Is a marketplace eSIM worse than one that switches networks? Only where the signal varies. In Lisbon and Porto, a single-profile plan on any of the four networks works. In the Alentejo, the Douro valley and the smaller Azores islands, a plan pinned to one operator is a plan that keeps whichever signal it started with, and that is where switching earns its keep.

Why do the price tables on comparison pages never match the apps? Because the tables are snapshots and the apps are live. Per-day rates fall as plan length grows, per-gigabyte tiers get repriced by the season, and promotional pricing appears and disappears. Use a table to learn the pricing unit and the structure, then price the actual plan in the actual app on the day you buy.

Do any of them include a Portuguese phone number? No. All three are data products. A Portuguese number means a local carrier eSIM or SIM with passport registration attached, and that is a separate purchase with a separate set of frictions.

What happens if my plan runs out mid-trip? All three sell top-ups from the app, and the difference between them is how the top-up interacts with the original plan. On a matrix model a top-up extends the same profile; on a per-day model it usually adds days; on a marketplace bundle it can add a second profile instead of extending the first. Confirm which before you rely on it.

Can I install all three and switch between them? Phones hold several eSIM profiles and activate one or two at a time, so yes. It is also unnecessary for most trips, and it is worth knowing that installing a profile does not start its validity clock — connection to a network does. That is what makes pre-installation safe.

Do I need to remove the eSIM after the trip? You can leave it installed and switch it off. Deleting a profile is usually irreversible, and a deleted profile cannot be reinstalled from the same QR code. Keep it until the refund window has closed.

Where these figures come from. Pricing structures and quoted rates are the providers’ own published terms for Portugal at the time of writing, including Holafly’s daily entry and floor rates, its per-day hotspot allowance, and Saily’s security features and post-allowance throttle behaviour; confirm them in each app before buying. Plan tiers and prices for this site’s Portugal product are the published ladder on the Portugal eSIM plans page. Network awards and scores are from Ookla’s Portugal 1H 2025 report, with the carrier-level detail on the carrier tables. Portuguese identity-verification rules for SIM activation follow ANACOM guidance on the 2021 registration requirement. Band allocations follow the operators’ published network information, and EU roaming terms follow the European Commission’s Roam Like at Home guidance.

The one-paragraph version

Airalo, Holafly and Saily are not three prices for one product. Airalo sells gigabytes from a marketplace, Holafly sells days with a metered hotspot, Saily sells gigabytes with a VPN company’s security layer, and this site sells a validity-and-volume matrix. Each unit carries one kind of waste: the per-gigabyte model wastes unused data and protects your days, the per-day model wastes unused days and hides its data waste inside the premium, and the matrix exposes both and lets you fit both. Fix your days and your daily gigabytes on paper before opening any app, then read five facts per provider — hotspot figure, post-allowance speed, validity start, carrier name, refund condition. The hotspot clause splits the category more than price does, and the support channel decides your evening if the profile installs and never connects. Buy the unit that matches your habit, not the brand that matches your search.

Portugal plans are the fourth model in the table above: gigabytes and validity chosen separately, from $1.99 to unlimited, with no throttle on any tier. Price your own days and gigabytes against the ladder before you commit, and if the route crosses into Spain, the Europe plan replaces the decision.