Country
A-B
C-E
F-H
I-Z
Instant Activation
High Internet Speeds
Hotspot Sharing
No Hidden Charges
Belgium eSIM
Belgium
FROM $2.58
Ï 5G
Network Provider: Base, ORANGE Belgium NV/SA, Orange
  • 22 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Brazil eSIM
Brazil
FROM $3.90
Ï 5G
Network Provider: TIM, Vivo S.A.
  • 19 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Afghanistan eSIM
Afghanistan
FROM $8.90
Ï 4G
Network Provider: Afghan Wireless Afghanistan, Etisalat, Roshan Afghanistan
  • 4 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Albania eSIM
Albania
FROM $3.49
Ï 4G
Network Provider: Vodafone
  • 21 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Algeria eSIM
Algeria
FROM $3.90
Ï 4G
Network Provider: Mobilis, Ooredoo, Optimum Telecom Algeria Spa
  • 18 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Andorra eSIM
Andorra
FROM $6.90
Ï 5G
Network Provider: Mobiland, STA Andorra
  • 21 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Anguilla eSIM
Anguilla
FROM $8.90
Ï 4G
Network Provider: Digicel Anguilla
  • 16 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Antigua and Barbuda eSIM
Antigua and Barbuda
FROM $8.90
Ï 4G
Network Provider: Digicel Antinua and Barbuda, FLOW
  • 5 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Argentina eSIM
Argentina
FROM $4.90
Ï 4G
Network Provider: Movistar, Telefonica Moviles Argentina S.A.
  • 19 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Armenia eSIM
Armenia
FROM $4.90
Ï 4G
Network Provider: Orange, UCOM Armenia, VEON Armenia CJSC
  • 17 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Australia eSIM
Australia
FROM $3.90
Ï 5G
Network Provider: OPTUS MOBILE PTY LTD, Optus, Vodafone
  • 8 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Austria eSIM
Austria
FROM $3.04
Ï 5G
Network Provider: 3, Orange, Three
  • 22 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Region
Instant Activation
High Internet Speeds
Hotspot Sharing
No Hidden Charges
Africa (29 Countries) eSIM
Africa (29 Countries)
FROM $12.49
Ï 5G
Network Provider: Airtel, AirtelTigo, Cell C
  • 3 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Asia (20 Countries) eSIM
Asia (20 Countries)
FROM $5.99
Ï 5G
Network Provider: 3, AirTel, CTM
  • 6 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Australia & New Zealand eSIM
Australia & New Zealand
FROM $3.99
Ï 5G
Network Provider: Optus, Spark
  • 5 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Balkans (5+ areas) eSIM
Balkans (5+ areas)
FROM $4.49
Ï 5G
Network Provider: A1, T-Mobile, Tele2
  • 5 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Caribbean (24 Countries) eSIM
Caribbean (24 Countries)
FROM $9.49
Ï 5G
Network Provider: Altice, Antel, Claro
  • 4 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Central Asia (5 Countries) eSIM
Central Asia (5 Countries)
FROM $3.99
Ï 4G
Network Provider: Beeline, Hutch, Jazz
  • 4 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
China (Mainland, HK, Macao) eSIM
China (Mainland, HK, Macao)
FROM $3.49
Ï 5G
Network Provider: CTM, China Unicom, csl
  • 7 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Europe (42+ Countries) eSIM
Europe (42+ Countries)
FROM $4.89
Ï 5G
Network Provider: 3, 7acht, A1
  • 5 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
South America (17 Countries) eSIM
South America (17 Countries)
FROM $8.99
Ï 5G
Network Provider: Antel, Claro, Digicel
  • 4 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Middle East (11 Countries) eSIM
Middle East (11 Countries)
FROM $9.99
Ï 5G
Network Provider: Bakcell, Beeline, Etisalat
  • 3 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
North America (3 Countries) eSIM
North America (3 Countries)
FROM $4.49
Ï 5G
Network Provider: AT&T, Bell, Movistar
  • 6 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
Global eSIM Plan (127 Countries) eSIM
Global eSIM Plan (127 Countries)
FROM $12.99
Ï 5G
Network Provider: 3, 7acht, A1
  • 5 plan options available
  • 5G and hotspot-enabled
  • Activation within 2 mins
  • 24x7 Customer Service
  • 100% Money-back Guarantee
I’m Portuguese: Your Guide to the Best eSIM for Europe & Brazil
Savings & Comparisons

I’m Portuguese: Your Guide to the Best eSIM for Europe & Brazil

Traveling from Portugal? This guide shows you how to find the best eSIM for seamless, affordable data in both Europe and Brazil, helping you avoid massive roaming fees.

Charlotte Davies, Head of Business Travel & Lifestyle Connectivity
(Updated: 25 January 2026)
9 min read

I’m Portuguese: Your Guide to the Best eSIM for Europe & Brazil

Planning a trip that hops from a weekend in Rome to visiting family in São Paulo is one of the great perks of being Portuguese. What isn’t so great? Figuring out your mobile data situation. You’re used to seamless roaming across the EU, but the moment you board that flight to Brazil, your data plan becomes a source of anxiety. We’ve all been there: landing at an airport, desperate for a connection to call an Uber or let family know you've arrived, only to be met with confusing local SIM options or the threat of eye-watering roaming bills from MEO, NOS, or Vodafone. This guide cuts through the noise to show you exactly why a modern travel eSIM is the answer and how to choose the best eSIM for Europe and Brazil. We'll cover everything you need to know for instant, affordable connectivity, whether you're exploring beyond the EU or heading to South America. For many, the first stop is often just across the border, and having seamless connectivity for a trip to Spain is just as important as being connected in Rio.

Why an eSIM is a Game-Changer for Portuguese Travelers

For years, the options for international travel were clumsy: either pay your home carrier’s exorbitant rates or waste precious vacation time hunting down a physical SIM card upon arrival. You’d have to navigate a new language, find your passport, and deal with local registration rules, all while jet-lagged. An eSIM, or embedded SIM, completely changes this dynamic. It’s a digital SIM card that’s already built into your smartphone.

The Core Advantages You Actually Care About

  • Activate from Home: You can buy and install your international data plan from your couch in Lisbon or Porto before you even pack your bags. You receive a QR code via email, scan it, and you're ready to go.
  • Instant Connectivity on Arrival: The moment your plane's wheels touch down in Rio de Janeiro (GIG) or Paris (CDG), you can switch on your eSIM data line and be online. No more hunting for airport Wi-Fi or queuing at a mobile kiosk.
  • Keep Your Portuguese Number: This is a huge benefit. Because the eSIM handles your data, your physical SIM from MEO, NOS, or Vodafone can remain active for calls and SMS. Friends and family can still reach you on your +351 number, and you can receive important texts like banking verification codes.
  • Avoid Bill Shock: Prepaid eSIM plans mean you know exactly what you're paying upfront. There are no hidden fees or surprise roaming charges that haunt you a month after your trip. You pay for the data package you need, and that's it.

The technology works by allowing your phone to hold multiple cellular profiles at once. You simply select the eSIM profile for data when you're abroad. Of course, the first step is to check if your phone is eSIM-ready, but most smartphones released in the last few years, like recent iPhones, Samsung Galaxy, and Google Pixel models, are fully compatible.

Navigating Connectivity in Europe: Beyond “Roam Like at Home”

As Portuguese citizens, we're accustomed to the fantastic “Roam Like at Home” policy within the European Union. Your domestic plan works in Spain, France, Germany, and other EU countries just as it does in Portugal, with no extra charges. It’s brilliant. However, the travel landscape is bigger than the EU, and this is where many travelers get caught out.

When Your Portuguese Plan Isn't Enough

What if your European adventure includes countries outside the EU? Think about these common scenarios:

  • A city break in London: Since Brexit, many Portuguese mobile operators have reintroduced roaming charges for the UK. What was once free can now be costly.
  • A ski trip in Switzerland: A classic European destination, but not in the EU. Using your data there without a special plan will result in significant charges.
  • Exploring the Balkans: Countries like Serbia, Bosnia and Herzegovina, and Albania are popular travel spots but fall outside the EU's roaming agreement.

In these cases, a dedicated European eSIM plan is the perfect solution. It offers a single, affordable data package that covers the entire continent, including non-EU nations. This means you can cross from Italy into Switzerland or fly from Faro to London without ever thinking about your connection. For frequent UK visitors, having a dedicated UK travel eSIM can offer even better value and larger data packages than a broader European plan.

The Brazil Challenge: How to Avoid Crippling Roaming Charges

This is where an eSIM transitions from a convenience to an absolute necessity for Portuguese travelers. The moment you leave the European economic area, the protective bubble of “Roam Like at Home” bursts. Roaming charges in Brazil on a standard Portuguese mobile plan can be astonishingly high—we're talking multiple euros for just a single megabyte of data. That's enough to make checking Google Maps or posting a photo on Instagram a very expensive activity.

eSIM vs. Local Brazilian SIM: A Head-to-Head Comparison

Your alternative used to be buying a local prepaid SIM from a provider like Vivo, TIM, or Claro upon arrival. While this works, it comes with its own set of frustrations that an eSIM elegantly solves.

  • The CPF Requirement: To activate a prepaid SIM in Brazil, you often need a Cadastro de Pessoas Físicas (CPF), which is a Brazilian tax registration number. While some airport kiosks might have tourist-friendly options, it's a common hurdle that can stop you in your tracks. An eSIM requires no such local registration.
  • Language Barrier: Unless you're fluent in Portuguese (which many of us are!), navigating automated activation menus and topping up credit can be a challenge. An eSIM provider offers support in English and a simple, universal activation process.
  • Time and Convenience: After a long-haul flight, the last thing you want to do is figure out where to buy a SIM card, compare plans, and go through the activation. An eSIM lets you bypass all of that and head straight for your transport.

Using an eSIM allows you to avoid roaming charges in Brazil completely. You land, your phone automatically connects to a local network like Vivo or TIM, and you have high-speed data immediately. Before you go, it's wise to figure out how much data you'll actually need for things like navigation, social media, and video calls to choose the most cost-effective plan.

Finding the Single Best eSIM for Europe and Brazil

So, you need connectivity for both regions. Do you need two separate eSIMs? Not necessarily. The ideal solution is a single eSIM that covers multiple countries across continents, offering the ultimate flexibility for a multi-leg trip.

Key Factors for Your Decision

When selecting a global or regional eSIM, focus on these four critical elements:

  1. Coverage: Does the plan explicitly list both your European destinations and Brazil? Check the country list carefully. A good provider will partner with top-tier networks in each country to ensure you get reliable 4G/LTE or even 5G speeds.
  2. Data Amount: Be realistic about your usage. Are you just using maps and messaging (1-3GB might suffice for a week), or are you streaming videos and constantly on social media (5-10GB or more would be better)? It’s usually more cost-effective to buy a slightly larger plan than to need a top-up.
  3. Validity Period: Match the plan's duration to your trip length. Plans can range from 7 days to 30 days or more. If your trip is 10 days, a 15-day plan is a safe bet.
  4. Ease of Use: The best eSIM providers make the process incredibly simple. Look for clear instructions, QR code delivery, and accessible customer support. The entire point is to reduce travel friction, not add to it. A clear step-by-step activation process is a sign of a customer-focused company.

Practical Tips for a Smooth eSIM Experience

Getting started with an eSIM is simple, but a few pro tips can make the experience completely seamless. Think of this as your pre-flight checklist.

Before You Leave Portugal

  • Confirm Your Phone is Unlocked: An eSIM will only work on a device that is not locked to a specific carrier. If you bought your phone directly from Apple or Samsung, it's likely unlocked. If you got it through a contract with MEO, NOS, or Vodafone, it's worth double-checking with them.
  • Install Over Wi-Fi: Always install your eSIM profile when you have a stable internet connection, like your home Wi-Fi. The process is quick but requires data to download the profile to your phone.
  • Label Your SIMs: Once installed, go into your phone’s mobile settings and give your eSIM a custom label like “Travel Data” or “Cellesim.” This makes it easy to distinguish from your primary Portuguese SIM, which you can label “Personal PT.”

Upon Arrival at Your Destination

  • Turn on the Right Line: In your phone’s settings, turn on your “Travel Data” line.
  • Enable Data Roaming: This is a crucial step that often confuses people. You must turn ON data roaming for your eSIM line. Don't worry—you won't be charged by your home carrier. This setting simply allows the eSIM to connect to local partner networks. Make sure data roaming is OFF for your primary Portuguese SIM.
  • Set for Mobile Data: Ensure your phone is set to use the eSIM for mobile data. Your primary line can remain the default for voice calls if you wish. This setup gives you the best of both worlds. Understanding how eSIMs connect to local networks helps demystify this process; you're essentially becoming a local subscriber for data purposes.

Your Journey, Connected

For any Portuguese traveler, juggling connectivity between a European city break and a trip to Brazil no longer needs to be a complicated or expensive affair. An eSIM is more than just a piece of technology; it's a tool for smarter, more relaxed travel. It removes the guesswork, eliminates the fear of bill shock, and gives you the freedom to use your phone just as you would at home, wherever you are.

By choosing the right international data plan before you leave, you're investing in a smoother, more connected journey. You can navigate unfamiliar streets with confidence, share moments with loved ones in real-time, and focus on what truly matters: the experience of travel itself. Explore the world, stay connected, and do it without breaking the bank.

Written by
Charlotte Davies

Charlotte Davies

Head of Business Travel & Lifestyle Connectivity - Cellesim LLC
 Based in London, Charlotte Davies is a recognized expert in business travel connectivity and digital lifestyle integration. With over 15 years of experience in corporate travel management for global firms in the City of London, she now advises...

Frequently Asked Questions

Got some questions before your Journey? Well here's everything you need to know before you go

An eSIM is a digital SIM card embedded in your phone. You purchase a data plan online, receive a QR code, and scan it to install a 'cellular profile' on your device. When you arrive at your destination, you simply switch your phone's mobile data setting to the eSIM profile to get instant access to local networks without needing a physical SIM card.

Yes, provided your smartphone is eSIM-compatible and 'unlocked.' Most phones purchased directly from manufacturers like Apple or Samsung are unlocked. If you got your phone through a carrier contract, it's best to contact them to confirm it's not locked to their network before traveling.

Yes, your phone must be carrier-unlocked to use an eSIM from a different provider. An unlocked phone is one that is not restricted to use on a single carrier's network. You can contact your home carrier (MEO, NOS, etc.) to check your phone's status and request it to be unlocked if necessary.

Absolutely. WhatsApp is tied to your phone number, not your SIM card. When you activate your data eSIM, WhatsApp will continue to work perfectly with your existing +351 Portuguese number, allowing you to call and message your contacts as usual using the eSIM's data.

Most eSIM providers, including Cellesim, make it easy to manage your data. You'll typically receive notifications as you approach your data limit, and you can easily purchase a top-up or a new data plan directly from the provider's app or website without needing to install a new eSIM.

For most travelers, an eSIM is significantly more convenient. You avoid language barriers, long queues after a flight, and potential registration issues like needing a local CPF number. With an eSIM, you can be online the moment you land, which is a major advantage for safety and convenience.

No. A Cellesim eSIM connects you directly to local carriers in Europe and Brazil. This means you get high-speed local data with zero roaming charges. It's a prepaid service, so you only pay for the data plan you choose upfront.
You may also like

Discover more articles on similar topics

Planning a trip to France and wondering about phone service? This guide breaks down whether an eSIM is all you need or if a traditional SIM card is st...

Planning a trip in 2026? Our expert guide breaks down how to choose the best international eSIM based on coverage, data needs, and your itinerary to a...

Planning a trip to Europe? Our guide breaks down how to choose the best travel eSIM to get affordable, high-speed mobile data and avoid expensive roam...