Best eSIM for Portugal: Unlimited Data for Pennies

Staying connected and enjoying unlimited data is easy with the best eSIM for Portugal. While you can always opt for a Portuguese SIM card, why would you? An eSIM blends the best of both worlds. It’s like using a physical SIM, but without the need to physically install it. Better yet, you can set it up before your trip.

A trusted eSIM for Portugal gives you peace of mind, as you can enjoy unlimited internet and use social media or VoIP services normally. With some, you can even call and text. But what are the best eSIMs for Portugal in 2026? Scroll down a bit, and you’ll see our top five based on extensive field tests of over twenty.

Best eSIM for Portugal: Top 5 Picks for Any Budget

A reliable eSIM for travelers must have everything: speed, coverage, flexible plans, and much more. This comprehensive list was made with these aspects in mind, and the five best eSIM providers for Portugal fit the bill perfectly. Best of all, they’re excellent for all budgets and start at just a few dollars. Read on.

1. Ubigi (Starting price: $6 for 3 GB of data for 30 days)

Ubigi is our favorite eSIM for Portugal, with a tremendous unlimited data plan for only $24 for 7 days. Even longer variants, like those for 15 and 30 days, for $39 and $48, are pretty affordable and worth your money. For longer stays, Ubigi has monthly and annual plans that renews every period, with the data credits renewing accordingly.

Our review of Ubigi praised its speed and performance worldwide. It’s no different here, as Ubigi provides reliable 5G coverage for bandwidth-hungry activities. Ubigi’s connections are also encrypted for another layer of security. The eSIM is easily activated via a QR code, and your plan starts when you arrive.

We found Ubigi’s 24/7 support to be one of the best, while its extensive support for phones, tablets, and laptops makes it feel even more premium. Ubigi allows tethering (data sharing), so one eSIM for Portugal can serve multiple travelers. If you need an eSIM for calling or SMS, Ubigi doesn’t provide phone numbers.

However, its generous data and impressive performance overshadow this tiny shortcoming. If you’re interested, you can claim a 10% discount on your first purchase from Ubigi using the promo code GIZMODO.

See Ubigi eSIM

2. Saily (Starting price: $3.99 for 1 GB of data for 7 days)

Saily starts at $3.99 for a gigabyte of data for a week. While it isn’t much, Saily compensates with security features. You get an ad blocker, which saves you data, and 115 virtual locations to conceal your whereabouts. Saily also blocks malicious websites, allowing you to browse safely even on foreign soil.

As the best eSIM for Portugal, Saily has other plans. 10 GB for 30 days is the best seller at $16.99, but there’s also the unlimited plan at $34.99 for 10 days. Saily isn’t the cheapest, but you can get a refund if the eSIM doesn’t work for you. The provider offers all the essentials, including 24/7 support and data sharing.

In practice, it works well in Portugal, with consistent 5G speeds and extraordinary speeds. We tested it for streaming and gaming without issues. Saily lacks local phone numbers, but it, again, isn’t a big deal, as you get ample data. It’s easy to set up and activate, making it one of the most reliable choices in 2026.

3. Holafly (Starting price: $3.90 for unlimited data for a day)

Holafly is a good eSIM for Portugal for a short to moderate stay. If you’re there for a day, it costs $3.90 for unlimited data. Five days are five times more, but when you go for seven, ten, or more days, the $3.90/day price slowly decreases. For instance, Holafly costs $36.90 for ten days and $74.90 for a month.

These aren’t the lowest prices, but Holafly justifies its price tag with speed. We enjoyed 5G connections from NOS and Vodafone, with top-tier speeds for all activities. Even using VoIP apps was smooth, with lag-free calling and chatting. We also liked that Holafly automatically activated our plan when we arrived.

Plus, its 24/7 support was available all the time in case we faced issues. Luckily, we didn’t, except for the annoying data-sharing limit of 500 MB per day. That’s Holafly’s only major flaw. Apart from that, Holafly is very popular and is also one of the best eSIMs for Asia, the USA, Canada, and other major locations.

4. Airalo (Starting price: $4 for 1 GB of data for 3 days)

Airalo relies only on 5G data in Portugal, so it’s fast, dependable, and ready for everything. In our tests, Airalo performed like a champ, and we had no issues with activation and usage. Its price is pretty low. The initial 1 GB plan for 3 days is $4, but we used the 10 GB plan for $9 for 7 days. Unlimited data is available.

It starts at $10.50 for 3 days and goes up to $61 for 30 days. Either way, Airalo is inexpensive and offers broad coverage. This eSIM for Portugal is famous for unlimited data sharing and its intuitive app, which also tracks data usage and notifies you when you’re about to hit the limit. Airalo isn’t ideal, however.

We noticed slower customer support responses and the lack of phone numbers. For example, when we tested eSIMs in the Netherlands, we used Airalo’s plan with a phone number for texting and calling. Portuguese numbers aren’t on the list. These are tiny complaints, and as a whole, Airalo is a well-oiled machine.

5. aloSIM (Starting price: $4.50 for 1 GB of data for 7 days)

aloSIM found its place on this list due to its international phone number, which you can use in Portugal for calling and texting. It’s free with every plan, even the cheapest one with 1 GB of data for $4.50 for 7 days. aloSIM is mostly suited for longer stays, as most of its plans are for 15 and 30 days.

The best-value one is 20 GB for $28 for 30 days, while unlimited data is valid for 10 days and costs $35. aloSIM’s testing showed decent performance, with 4G and 5G connections being stable for all activities. We measured their speeds, and they were below Holafly and Ubigi, so aloSIM may not be ideal.

Its support could be more responsive, as well, but since it works without issues and is easy to activate, you won’t need it that much. aloSIM is a solid all-arounder with diverse offers and options for business users and tailored plans and prices. Consider it for longer stays, and if you need a local phone number.

See Ubigi eSIM

Which Devices Support eSIM Cards?

You’ll typically use an eSIM for Portugal on your phone. However, phones aren’t the only devices with eSIM compatibility. In fact, other devices, apart from phones, support physical SIM cards, as well, such as tablets and laptops. Phones that support eSIMs are typically newer models, starting from 2020.

The iPhone XR may be the oldest phone that supports it, as it was released in 2018. On the other hand, the oldest Samsung model that supports eSIMs is the S20, released in 2020. In any case, it’s easy to check if your device supports the eSIM you want to buy. All providers have compatibility checkers.

Type in your device model name and you’ll see if it’s supported. Another method is to go to Settings on your device and see if there’s an option to add an eSIM. If it’s unsupported, you must get a physical SIM card for Portugal or any other country. While that’s less practical, it’s still cheaper than roaming fees.

What is the Cheapest eSIM for Portugal?

Speaking of low-cost options, the cheapest eSIM for Portugal depends on how long you’re staying in this country. If you need an affordable option for a day or two, Holafly at $3.90 is the best one, as it offers unlimited data for that price. If you’re staying for longer, you’ll get the best value for your money from Ubigi.

It offers unlimited data for 7 days for $24 and for $48 for 30 days. Meanwhile, Holfly’s 30-day offer is over $74. Across the board, Ubigi and Airalo have some of the lowest prices for both short and long stays in Portugal in 2026.

Conclusion

These were some of the top-rated eSIMs in general. Subsequently, they’re reliable to use in Portugal, offering flexible plans, good coverage, and seamless activation. Ubigi takes the top spot, as it’s affordable and fast, without notable shortcomings. Saily is best for many security features and consistent speeds.

Holafly is made for the highest data needs, while Airalo is a well-rounded, cheap 5G eSIM for Portugal. aloSIM is a stellar alternative to these four if you need an international number for calling, texting, and authentication. The best choice ultimately depends on your needs, and with these, you’re set for your entire trip.

See Ubigi eSIM