Best Prepaid SIM Card for Portugal in 2026: Why I Recommend NOS

Planning a trip to Portugal and looking for the best prepaid SIM card for Portugal for tourists in 2026? In this guide I compare the main mobile operators, show you where to buy a SIM card, what it costs and which one actually gives you the best coverage when traveling around the country.

I traveled to Portugal multiple times, including city trips to Lisbon and Porto, as well as road trips from north to south. From navigating the narrow streets of Lisbon to driving along the Algarve coast, having mobile data on my phone made traveling a lot easier. If you are planning a similar trip, check out my Portugal road trip from Porto to the Algarve or my Lisbon travel guide.

As a full-time travel content creator who has tested SIM cards and eSIMs in more than 160 countries around the world, I know exactly what works and what doesn’t when it comes to staying connected while traveling.

In this guide I break down everything you need to know about buying a prepaid SIM card in Portugal, based on real travel experience and updated 2026 data, so you can choose the right SIM for your trip.

Last updated: May 2026.

This article contains affiliate links. If you purchase through these links, I may earn a small commission at no extra cost to you. All recommendations are based on independent research and personal experience.

Best prepaid SIM card for Portugal in 2026: why I use NOS

The best prepaid SIM card for tourists in Portugal is NOS. It has one of the strongest and most reliable mobile networks in the country, simple prepaid plans, large data bundles and excellent coverage for both city trips and road trips.

Choosing the best prepaid SIM card in Portugal is not just about finding the cheapest plan or the biggest data bundle. Prices are very similar between NOS, MEO and Vodafone, so the real difference comes down to network reliability, coverage outside the main cities and ease of use.

From my own experience traveling around Portugal, including road trips from north to south, NOS gave me the most reliable overall experience. I used a NOS prepaid SIM card in Portugal and stayed connected all the time, even in off the beaten path places and on mountain roads in the North.

For most tourists visiting Portugal, I recommend the NOS 55 GB prepaid SIM card for €10 EUR (~$11 USD). It is affordable, easy to use and comes with more than enough data for maps, social media, WhatsApp, browsing, restaurant searches and travel planning.

Why NOS is my first choice

NOS is the best all-round prepaid SIM card for Portugal because it combines strong nationwide coverage with straightforward prepaid plans. It performs very well in cities like Lisbon and Porto, along the Algarve coast and on longer travel routes across the country.

A NOS SIM card is also the best choice if your trip includes Madeira. NOS has the strongest network on Madeira, which makes it the safest option if you are visiting the island and want reliable mobile data outside the main towns as well.

Best alternative: MEO

MEO is the best alternative to NOS and also an excellent prepaid SIM card for Portugal. MEO has very strong nationwide coverage and performs well in rural areas and inland travel routes, making it a great option for road trips.

The only downside is that MEO uses a slightly more complex prepaid system with weekly bundles and top-ups. For travelers who just want a simple prepaid SIM card with a clear data allowance, NOS is easier and more straightforward.

Also a good option: Vodafone

Vodafone is still a very good choice for most travelers in Portugal. It performs very well in cities, coastal areas and popular tourist destinations such as Lisbon, Porto and the Algarve.

Vodafone often offers a lot of data for the price, which makes it attractive from a value perspective. However, Vodafone is slightly less consistent in rural and inland areas compared to NOS and MEO. For typical city trips and coastal holidays, Vodafone will work perfectly fine.

Not recommended as first choice: Digi

Digi is a new mobile operator in Portugal with a growing network. Prices may be competitive, but coverage is still more limited compared to NOS, MEO and Vodafone.

For tourists, I would not recommend Digi as a first choice yet. If you are traveling around Portugal and want the most reliable mobile data connection, stick with NOS, MEO or Vodafone.

Portugal prepaid SIM card comparison

To make it easier to compare the different options, here is a quick overview of the best prepaid SIM cards in Portugal for tourists. Prices are very competitive, so the main difference is not only the amount of data, but also network coverage, ease of use and how suitable the SIM card is for your type of trip.

My recommendation: If you want the easiest and most reliable prepaid SIM card for Portugal, go for NOS. The 55 GB plan for €10 EUR (~$11 USD) is more than enough for most travelers and NOS is the safest all-round choice for city trips, road trips and Madeira.

If you are mainly staying in Lisbon, Porto or the Algarve, Vodafone is also a good option. If you are planning a longer road trip or traveling inland, MEO is the best alternative to NOS.

Prepaid SIM card prices in Portugal in 2026

Prepaid SIM card prices in Portugal are very competitive and offer large data bundles for a relatively low price. All major providers include calls, SMS and EU roaming (with fair use limits) in their prepaid plans.

Below is an overview of the main prepaid SIM card plans available in Portugal in 2026.

Vodafone prepaid SIM card plans

• 55 GB data for 4 weeks = €10 EUR (~$11 USD)
• 95 GB data for 4 weeks = €15 EUR (~$17 USD)

Plans include 1,000 minutes and SMS, EU roaming included (fair use applies).

NOS prepaid SIM card plans

• 55 GB data per month = €10 EUR (~$11 USD)
• 100 GB data per month = €19 EUR (~$22 USD)

Plans include 1,000 to 1,200 minutes and SMS, EU roaming included (fair use applies).

MEO prepaid SIM card plans

MEO works a little differently from NOS and Vodafone. Instead of one simple monthly tourist-style plan, MEO uses a prepaid credit and weekly bundle system. You first buy a prepaid SIM card with starting credit/data included, and then activate one of the weekly data bundles.

• 50 GB data - €2.50 EUR per week (~$3 USD)
• 100 GB data - €3.75 EUR per week (~$4 USD)

MEO uses a more flexible prepaid system with weekly bundles and top-ups, while Vodafone and NOS offer more traditional monthly-style plans.

All three providers offer similar pricing levels, with large data bundles available from around €10 EUR (~$11 USD), making Portugal one of the more affordable countries in Europe for prepaid mobile data.

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Mobile internet in Portugal: 4G and 5G coverage

Portugal has very good mobile internet coverage and for most travelers the difference between the main networks will not be dramatic in cities and tourist areas. In places like Lisbon, Porto, Faro, the Algarve and along the main highways, you can expect fast and reliable mobile data on all major networks.

There are four mobile internet providers in Portugal:

• NOS
• MEO
• Vodafone
• Digi

For tourists, the main choices are NOS, MEO and Vodafone. Digi is a newer provider with a smaller and still developing network, so I would not recommend Digi as a first choice for travelers who want the most reliable connection.

Best mobile network in Portugal for tourists

Based on my own travel experience in Portugal and comparing the mobile networks, NOS and MEO are the strongest overall choices. They both offer reliable coverage across the country and are the best options if you are planning to travel beyond the main cities.

• NOS: Best overall choice for tourists, excellent for road trips and the best network for Madeira.
• MEO: Very strong alternative to NOS, especially good for rural areas and inland travel.
• Vodafone: Good network in cities, coastal areas and popular tourist destinations, but slightly less consistent in remote areas.
• Digi: Budget-friendly newcomer, but not yet the best choice for tourists because coverage is more limited.

4G and 5G coverage in Portugal

4G coverage in Portugal is excellent and available almost everywhere travelers are likely to go. Whether you are exploring cities, driving between Lisbon and Porto or traveling along the Algarve coast, you should have a stable mobile data connection most of the time.

5G is widely available in Portugal, especially in cities, larger towns, tourist areas and along major transport routes. NOS, MEO and Vodafone all offer 5G on their prepaid SIM cards.

That said, for travelers the most important thing is not just 5G. A strong and reliable 4G network is often more important when road tripping, hiking, visiting smaller villages or traveling through mountain areas.

Best network for road trips and rural Portugal

If you are only visiting Lisbon, Porto or the Algarve, all major networks will work well. But if you are planning a road trip, visiting smaller towns or traveling more inland, network choice becomes more important.

For road trips and rural travel in Portugal, I recommend NOS or MEO. Both networks are more consistent outside the main tourist areas and are the safest choices if you want reliable mobile data across different regions of the country.

Best network for Madeira and the Azores

If your trip includes Madeira, I recommend choosing NOS. NOS has the strongest network on Madeira and is the safest choice if you want reliable mobile data around the island.

For the Azores, both NOS and MEO are good options. Coverage is generally good in towns and populated areas, but signal can be weaker in remote, mountainous or less populated parts of the islands.

Where to buy a prepaid SIM card in Portugal

You can buy a prepaid SIM card in Portugal at airports, official mobile operator stores and phone shops in city centers. In general, it is easy to get connected, but the experience depends a lot on where you buy your SIM card.

Buying a SIM card at Lisbon Airport

If you are flying into Lisbon Airport, you can buy a prepaid SIM card right after arrival. There are mobile operator shops and resellers in the arrivals hall offering tourist SIM cards.

While this is the most convenient option, it usually comes with a bit of waiting time and tourist SIM cards sold at tourist prices. After a long flight, the last thing you want is standing in line waiting to get connected.

If you want to know exactly what to expect, including shop locations and prices, check my detailed guide for buying a SIM card at Lisbon Airport.

Buying a SIM card in Portugal city centers

In cities like Lisbon, Porto, Faro, Braga and other popular tourist destinations across the country, you will find plenty of official stores from MEO, NOS, Vodafone and Digi as well as smaller phone shops.

This is often the best place to buy a prepaid SIM card in Portugal if you want more choice and a smoother experience compared to the airport. Staff in city stores are usually more helpful and the process can be quicker.

From my experience traveling around Portugal, I found it easy to walk into a shop in the city center and get connected within a couple of minutes, as long as you have your passport ready for registration. I have done this in the past, but as I said before nowadays I order myself an eSIM for Portugal before my trip.

Buying an eSIM for Portugal online

The easiest way to stay connected is to arrange your data before your trip and install an eSIM for Portugal online. This way you are connected as soon as you land, without having to visit a store or show your passport.

eSIMs are slightly more expensive than local SIM cards, but the convenience is unbeatable. If you prefer this option, check my complete guide to the best eSIMs for Portugal.

Do you need a SIM card for Portugal?

Yes, having mobile data on your phone is essential when traveling in Portugal. Whether you are exploring the streets of Lisbon, discovering viewpoints in Porto or road tripping along the Algarve coast, staying connected makes your trip easier, more flexible and definitely more enjoyable.

For me, arranging mobile data is always one of the first things I take care of when planning a trip. It is not just about convenience, it is also about safety and flexibility. Being able to access maps, book accommodation on the go, find restaurants or check travel updates instantly makes a huge difference.

From my own experience traveling around Portugal multiple times, including a road trip from Porto to Algarve, I rely heavily on mobile data for navigation, planning and staying in touch. Especially when driving longer distances or visiting smaller towns, having a stable internet connection is simply a must.

You could technically rely on WiFi in hotels, restaurants and cafes, but it is sometimes slow or simply not available when you actually need it. That is why I always recommend getting either a prepaid SIM card in Portugal or an eSIM for Portugal.

Best eSIM for Portugal in 2026

If you want to avoid the hassle of buying a local SIM card, using an eSIM for Portugal is by far the easiest way to stay connected. You can install it before your trip and be online as soon as you land, without visiting a store or showing your passport.

eSIMs are usually a bit more expensive than local prepaid SIM cards, but the convenience makes up for it. Especially for short trips, city visits or if you simply don’t want to waste time after arrival, an eSIM is often the better option.

I recommend checking my complete comparison of the best eSIMs for Portugal, where I break down all providers in detail.

Best overall eSIM for Portugal: Airalo

Airalo is the best all-round eSIM for Portugal. It offers reliable performance, very competitive pricing and flexible data plans.

The biggest advantage of Airalo is that it works on multiple networks in Portugal (MEO, NOS and Vodafone). This means your phone can connect to the strongest available signal depending on where you are, which makes it the most reliable eSIM option overall.

I have personally used Airalo in more than 50 countries and it has always worked flawlessly, which is exactly what you want when arriving in a new destination.

Use the discount code TOMTOM3 for $3 USD off your first Airalo eSIM.

Best value eSIM for Portugal: Sim Local (Lycamobile)

If you are looking for the best value, then Sim Local (Lycamobile eSIM) is a great choice.

At a similar price level as other eSIM providers, it includes calls, SMS and EU roaming, which most other eSIMs do not offer. This makes it a more complete package for travelers who want more than just data.

Use the discount code TRAVELTOMTOM for 15% off any Sim Local eSIM.

For more details, you can also read my full Sim Local eSIM review.

Bottom line: if you want maximum convenience and the most reliable connection, go for Airalo. If you are looking for the best value with extra features like calls and SMS, Sim Local is the better option.

eSIMs vs local prepaid SIM cards in Portugal

Choosing between an eSIM and a local prepaid SIM card in Portugal comes down to one simple question: do you value price or convenience more?

• Local prepaid SIM cards are usually cheaper and offer large data bundles for a good price.
• eSIMs are slightly more expensive, but much easier to use and set up.

With a local SIM card, you need to visit a store, show your passport for registration and sometimes wait in line. This can take time, especially after a long flight.

With an eSIM, you install everything before your trip and you are connected instantly when you land. No paperwork, no store visits, no hassle.

From my experience, if you are traveling for a short trip or visiting multiple destinations, the convenience of an eSIM often outweighs the small price difference. But if you are staying longer and want maximum value for money, a local prepaid SIM card is still a great option.

Bottom line: local SIM cards are cheaper, but eSIMs are faster, easier and more convenient.

Traveling beyond Portugal? If you are visiting multiple countries, it is worth comparing international SIM card options.

Check out my guides for the best international SIM cards for traveling abroad and the best SIM cards for Europe to find the most convenient solution for multi-country trips.

Things to know before buying a SIM card in Portugal

• Passport registration is required: When buying a prepaid SIM card in Portugal, you need to show your passport for registration.
• SIM cards are easy to buy: You can get a SIM card at airports, official stores or phone shops in cities like Lisbon and Porto.
• EU roaming is included: All major providers include EU roaming, but data usage abroad is limited by fair use policies.
• 5G is available: All main operators (NOS, MEO and Vodafone) offer 5G connectivity in urban areas.
• Validity is usually 4 weeks: Most prepaid plans are valid for around 28 to 30 days.
• Hotspot is supported: You can use your phone as a hotspot with most local SIM cards.
• Coverage is strong overall: Mobile internet works well across Portugal, especially in cities and along the coast.

FAQ about prepaid SIM cards in Portugal

What is the best prepaid SIM card for Portugal?

The best prepaid SIM card for Portugal is NOS. It offers a strong and reliable network, simple prepaid plans and performs very well across the country. For rural travel and Madeira, NOS is the best option.

Can I buy a SIM card at Lisbon Airport?

Yes, you can buy a prepaid SIM card at Lisbon Airport. There are shops in the arrivals hall, but you may need to wait in line and register your SIM card with your passport. Read my guide for buying a SIM card at Lisbon Airport.

Is Vodafone good in Portugal?

Yes, Vodafone is a good network in Portugal, especially in cities and along the coast. It often offers more data for the same price, but is slightly less consistent in rural and inland areas compared to NOS and MEO.

Does a SIM card in Portugal work in Madeira and the Azores?

Yes, Portuguese SIM cards work in Madeira and the Azores. For the best coverage in Madeira, NOS is recommended, while in the Azores both NOS and MEO perform well.

Is eSIM better than a prepaid SIM card in Portugal?

eSIMs are more convenient because you can install them before your trip and be connected instantly on arrival. Local prepaid SIM cards are usually cheaper, but require visiting a store and passport registration.

How much does a prepaid SIM card cost in Portugal?

Prepaid SIM cards in Portugal typically cost around €10 EUR (~$11 USD) for large data bundles with 50 GB or more.

Do prepaid SIM cards in Portugal include EU roaming?

Yes, all major providers include EU roaming, but data usage in other countries is limited by fair use policies.

Is 5G available in Portugal?

Yes, 5G is available in Portugal, especially in cities. All major operators (NOS, MEO and Vodafone) offer 5G on their prepaid plans.

Final tips for using a SIM card in Portugal

Before you choose a prepaid SIM card for Portugal, it is worth thinking about how and where you will be using your phone during your trip. Whether you are exploring Lisbon, visiting Porto or road tripping along the Algarve, staying connected will make your trip much easier.

From my own trips around Portugal, including multiple visits and a full road trip from Porto to the Algarve, I can honestly say that having mobile data on your phone is essential for navigation, finding restaurants and planning your trip on the go.

If you want the most reliable prepaid SIM card, go for NOS. If you are planning more inland travel or road trips, MEO is an excellent alternative to NOS.

You can also buy a SIM card at Lisbon Airport but if you prefer convenience over price, an eSIM like Airalo will get you connected instantly on arrival. Check all options in my guide for the best eSIMs for Portugal.

Traveling beyond Portugal? Then have a look at my best SIM cards for Europe or best international SIM cards to find the best option for multi-country trips.

Whichever option you choose, make sure you are connected from the moment you land so you can fully enjoy your trip to Portugal.

For more Portugal travel tips and inspiration check out my Instagram profile @traveltomtom and follow along for all my adventures around the world.

Enjoy your trip to Portugal.

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