best esim for belgium

Are you planning your trip to Belgium and thinking about staying connected with an eSIM? This is a complete guide with everything you need to know about using an eSIM when traveling to Belgium including a comparison of the best Belgium eSIMs for 2025.

Don't waste money on high roaming charges, read my recommendations below and order an eSIM for Belgium on the internet. Below you will find up to date prices as per February 2025, including all tourist eSIM specifications.

Find out how eSIMs work, where and when to order an eSIM for Belgium, FAQ about eSIMs and more about the network coverage and 4G/5G data speed.

Table of Contents

Already since 2012 I am traveling the world full time and throughout the years I turned my passion for traveling into a lifestyle and became a full time nomadic travel blogger. That is why I constantly get to a different country and pretty much every week I need to look for a new sim card to stay connected.

In the past I used to buy a local prepaid sim card on arrival in every country, nowadays I mostly use eSIMs to stay connected when traveling abroad.

Traveltomtom also wrote a complete guide on how to buy a prepaid sim card in Belgium and a sim card guide for Brussels Airport.

Some links in this article about the best eSIMs for Belgium are affiliate links. If you buy any product after clicking on an affiliate link I will earn a small commission. Don't worry this is at absolutely no extra cost to you!

My recommendation

Before showing you the two best eSIMs for Belgium read the following carefully:

Make sure your phone is unlocked and eSIM compatible. If not, an eSIM won't work on your phone!

1. Orange Holiday Europe eSIM - 70 GB

  • 70 GB data in all of Europe
  • 5G ready
  • Unlimited calling/texting in all of Europe
  • 120 international minutes
  • 1,000 international sms
  • Valid for 28 days
  • Only $0.8 USD per Gigabyte

You can buy the Orange Holiday Europe eSIM via SimOptions for $55.90 USD or via Sim Local for $53.50 USD.

Traveltomtom readers now get an extra 15% off on all Sim Local eSIMs when using the promo code: TRAVELTOMTOM at check out!

This eSIM comes with a phone number from France starting with +33 and is valid in 39 countries in Europe. Unlimited calls and sms within Europe are included as well as 120 international minutes.

Since the Orange Holiday Europe eSIM comes with free EU data roaming and is valid in all countries in Europe it is therefore also listed as the best eSIM for traveling to Europe.

2. Jetpac eSIM for Belgium - 10 GB for $13 USD

  • 10 GB data-only eSIM
  • Valid in all of Europe
  • 5G ready
  • Valid for 30 days
  • $1.3 USD per Gigabyte

Click here to order a Jetpac eSIM for Belgium.

Jetpac has 8 different eSIM plans for Belgium with all amazing deals and a rates around $1 USD per Gigabyte.

Is Belgium one of your stops on a trip around the world then you can also look into getting an eSIM for traveling the world. There are a bunch of eSIMs that cover multiple countries, some up to 141 countries around the world.

Belgium eSIM comparison

There are 3 mobile internet providers in Belgium: Proximus, Orange and Base. In phone stores in Belgium you can buy an eSIM for tourists.

But let me tell you that ordering an eSIM for Belgium on the internet is cheaper and faster and as soon as the plane lands you are online.

Traveltomtom recommends ordering an eSIM for traveling in Belgium from one of the well-known eSIM providers that have proven to be reliable operators: Jetpac, Holafly, SimOptions, Nomad, Airalo, GigSky, Airhub, aloSIM, Saily, Roamless, Firsty, Yesim, Sim Local, Ubigi, etc.

The competition is fierce... so before you buy an eSIM first read my tips below!

Jetpac

Jetpac quickly made name in the eSIM world by not only offering very affordable eSIM solutions, but also by adding a couple benefits for travelers who order an eSIM via Jetpac. Check out our extensive Jetpac eSIM review with all pros and cons.

Check out the Jetpac eSIM plans for Belgium in 2025:

  • 1 GB data for 4 days = $1 USD
  • 3 GB data for 7 days = $5 USD
  • 5 GB data for 30 days = $7 USD
  • 10 GB data for 30 days = $13 USD
  • 15 GB data for 30 days = $17 USD
  • 20 GB data for 30 days = $20 USD
  • 30 GB data for 30 days = $28 USD
  • 40 GB data for 30 days = $39 USD

Click here to order a Jetpac eSIM for Belgium.

Traveltomtom readers now get an extra 10% off on all Jetpac eSIMs when using the promo code: TOMTOM10 at check out!

The Jetpac Belgium eSIMs are valid in all of Europe and are data-only. Incoming and outgoing calls are not supported. Jetpac eSIMs operate on the 4G/5G networks of Orange, Proximus and Base. 5G is supported.

You can instal your Jetpac eSIM before your trip to Belgium, but it only activates from the moment it connects to a supported network in Belgium. That moment your days also start counting. The Jetpac eSIMs have to be installed within 1 year.

An extra advantage of using a Jetpac eSIM is that you get a free VPN subscription, 50% discount on airport lounges and Fast Track passes. And Jetpac also provides free airport lounge access if your flight is delayed. However, you will have to register your flight before you travel to Belgium and in case of a delayed or canceled flight a LoungeKey voucher will automatically be provided.

These are all complimentary services that no other eSIM provider offers. For more info check the Jetpac website.

SimOptions

SimOptions is a very reliable eSIM provider and Traveltomtom has used SimOptions uncountable times in more than 50 countries around the world. I can totally recommend using SimOptions for ordering your Belgium eSIM.

The Traveltomtom Team wrote down all pros and cons about SimOptions in our independent SimOptions Review.

Why using SimOptions? They offer eSIMs including calling and texting in all of Europe.

SimOptions also has data-only eSIMs for Belgium:

  • 1 GB data for 7 days = $4.50 USD
  • 3 GB data for 30 days = $5.90 USD
  • 5 GB data for 30 days = $6.90 USD
  • 10 GB data for 30 days = $12.90 USD
  • 20 GB data for 30 days = $24.90 USD
  • 30 GB data for 30 days = $31.90 USD
  • 50 GB data for 30 days = $49.90 USD

These data-only eSIMs are only valid in Belgium. SimOptions doesn't specify on which network they operate, but 5G is supported. These eSIMs do NOT come with a phone number and they do not offer incoming/outgoing calls or sms services.

Click here to order a data-only eSIM for Belgium from SimOptions.

Much more interesting are the international eSIMs for Belgium you can order via SimOptions.

These eSIMs support incoming and outgoing calls/sms as they come with a phone number.

Bouygues Telecom

  • 15 GB data-only for 15 days = $15.90 USD
  • 20 GB data + unlimited calls for 15 days = $21.90 USD
  • 30 GB data + unlimited calls for 30 days = $32.90 USD
  • 60 GB data + unlimited calls for 30 days = $39.90 USD

Orange Holiday Europe

  • 12 GB data + unlimited calls/text + 30 minutes international for 14 days = $28.90 USD
  • 30 GB data + unlimited calls/text + 120 minutes international for 14 days = $49.90 USD
  • 70 GB data + unlimited calls/text + 120 minutes international for 28 days = $55.90 USD

Click here for more info or to order an international eSIM for Belgium via SimOptions.

If you download the SimOptions app and use the coupon code TOM10 you get an extra 10% discount on all SimOptions eSIMs.

These eSIMs are valid all over Europe and they include free EU data roaming. The best thing about these eSIMs for Belgium is that they also include unlimited calling and texting.

All the SimOptions eSIMs for Belgium are valid for 1 year, but the credit validity starts only when the eSIM connects the first time to a supported network. So you can instal the eSIM even when you are not in Europe yet and the credit validity won't start only on arrival.

Airalo

Airalo is a very reliable eSIM provider and Traveltomtom has used Airalo uncountable times in more than 50 countries around the world. I can totally recommend using Airalo for ordering an eSIM.

Airalo is one of the eSIM market leaders, but has not innovated much over the last years and prices have not changed either. But Airalo is rock solid and Traveltomtom has never faced an issue using Airalo eSIMs.

Here are the Airalo eSIM plans for Belgium for 2025:

  • 1 GB data for 7 days = $4.5 USD
  • 2 GB data for 15 days = $7 USD
  • 3 GB data for 30 days = $9 USD
  • 5 GB data for 30 days = $12.5 USD
  • 10 GB data for 30 days = $20 USD
  • 20 GB data for 30 days = $30 USD

Click here to order an Airalo eSIM for Belgium.

Get an extra discount of $3 USD on your first Airalo eSIM with the code: TOMTOM3.

Data-only means that incoming or outgoing calls/sms are not supported and these eSIMs from Airalo do not come with a phone number.

The Airalo eSIM plans for Belgium are called Belganet and operate on the 4G/5G networks of Base and Proximus. 5G is supported.

An Airalo eSIM has to be installed within 30 days and after activation the credit validity starts when it connects the first time to a supported network.

aloSIM

Not a new kid on the block, aloSIM has earned its stripes already in the eSIM world, but Traveltomtom didn't use aloSIM much until lately. The Traveltomtom Team tested and reviewed aloSIM and came with positive notes.

Read all about it in our extensive and honest aloSIM review.

alosim esim plans for belgium

Here are the aloSIM plans for Belgium in 2025:

  • 1 GB data for 7 days = $4.5 USD
  • 2 GB data for 15 days = $7 USD
  • 3 GB data for 30 days = $9 USD
  • 5 GB data for 30 days = $12.5 USD
  • 10 GB data for 30 days = $20 USD
  • 20 GB data for 30 days = $30 USD
  • Unlimited data* for 10 days = $35 USD

*only 1.5 GB high speed data per day, then reduced data speed of 512 Kbps (useless speed).

Click here for more info or to order an eSIM for Belgium via aloSIM.

The aloSIM eSIMs operate on the Orange, Base and Proximus 4G/5G networks. 5G is supported.

The unlimited data plan only gives you 15 GB of high speed data for 10 days, it is not worth it. The 20 GB data plan is much better!

What differentiates aloSIM from other eSIM providers is that they offer an eSIM for Belgium including an international phone number. This phone number that comes with the eSIM is via a separate application called Hushed.

Firsty

Firsty is a new eSIM provider that has a complete different approach than the original eSIM providers. Firsty gives away free data by watching ads. This sound very tempting, but this data speed is just good enough for messaging, email, internet calls and basic navigation.

Find out more in our extensive Firsty review, tested by the Traveltomtom Team.

But Firsty also has 2 daily plans with unlimited data.

firsty esim plans for israel

There are 2 different plans with unlimited data per day:

  • unlimited data per day at 5 Mbps = €1 EUR per day
  • unlimited data per day at 5G speed = €2.5 EUR per day

Click here to order a Firsty eSIM for Belgium.

There is very little extra info available. I found out what the data speeds are exactly after contacting the Firsty support. It is unsure on which network they operate in Belgium.

To use a Firsty eSIM it is mandatory to download their app.

GigSky

GigSky has been around for a long time and is also recommended in my list of the best international eSIMs for traveling the world in 2025.

The Traveltomtom Team tested GigSky and was positively surprised. Check out our complete GigSky review with all pros and cons.

gigsky esim plans for belgium

Here are the GigSky eSIM plans for Belgium in 2025:

  • 1 GB data for 7 days = $4.49 USD
  • 3 GB data for 15 days = $8.99 USD
  • 5 GB data for 30 days = $12.49 USD
  • 10 GB data for 30 days = $19.99 USD
  • Unlimited data* for 7 days = $24.99 USD
  • Unlimited data* for 15 days = $44.99 USD

*2.5 GB high speed data per day then reduced data speed. High speed data resumes every 24 hours from plan activation.

Click here to order a GigSky eSIM for Belgium.

Downside of GigSky is that they do not provide much info about their eSIM plans. So it is unclear on which network they operate in Belgium, neither if they support 5G or when and how the eSIM will be activated.

Another essential thing that is missing is what is the reduced data speed after you used the 2.5 GB per day.

Because all this essential info is all missing we are hesitant ranking GigSky higher in this Belgium eSIM comparison.

Nomad

Nomad is another trusted eSIM provider that offers eSIM plans for Belgium. The Nomad eSIMs for Belgium are much more expensive compared to other eSIM providers.

Here are the Nomad eSIM plans for Belgium:

  • 1 GB data for 7 days = $6 USD
  • 3 GB data for 30 days = $8 USD
  • 5 GB data for 30 days = $14 USD
  • 10 GB data for 30 days = $19 USD
  • 20 GB data for 30 days = $33 USD
  • 50 GB data for 30 days = $45 USD

Click here to order an eSIM for Belgium from Nomad.

All the Nomad eSIMs are data-only and incoming and outgoing calls and sms are NOT supported. The Nomad Belgium eSIMs are only valid in Belgium and operate on the 4G/5G networks of Orange and Base.

The Nomad Belgium eSIMs have to be installed on your phone within 60 days and after installation its validity starts when it connects for the first time to a supported network in Belgium. Basically when the plane lands.

Holafly

Personally Traveltomtom is not a fan of eSIMs with unlimited data that do not explicitly define what is the exact Fair Use Policy.

In fact, unlimited data eSIMs are not really unlimited, they all reduce your data speed and you only get a certain amount of high speed data per day.

Holafly is an eSIM operator that only has eSIMs with unlimited data but does NOT mention what the FUP is. They only say the following:

  • Speed reduction: if necessary. Some carriers may reserve the right to apply a Fair Usage Policy.

These are the Holafly eSIM plans for Belgium:

  • 3 days 'unlimited' data = $12.90 USD
  • 5 days 'unlimited' data = $20.90 USD
  • 7 days 'unlimited' data = $29.90 USD
  • 10 days 'unlimited' data = $36.90 USD
  • 15 days 'unlimited' data = $50.90 USD
  • 20 days 'unlimited' data = $61.90 USD
  • 30 days 'unlimited' data = $74.90 USD

The Holafly eSIMs for Belgium are data-only and incoming and outgoing calls/sms are NOT supported. These eSIMs do not come with a phone number. Holafly eSIMs operate on the Orange network in Belgium.

You can use a hotspot on the Holafly Belgium eSIMs, but it is capped at 500 MB per day.

Because of the undefined FUP Traveltomtom is not a fan of Holafly eSIMs but Holafly eSIMs for Belgium are also much more expensive than other eSIM providers.

What is the cheapest eSIM for Belgium?

No other eSIM provider can beat the Jetpac eSIM plan with 1 GB data for just $1 USD. There are more eSIM plans with 1 GB data. GigSky, SimOptions, aloSIM and Airalo all charge $4.5 USD for the 1 GB data plan.

But then there is Jetpac again with an eSIM for Belgium with 3 GB data for just $5 USD.

Why buying an eSIM for traveling in Belgium

eSIMs are the easiest way to stay connected when traveling to Belgium in 2025 and you can arrange everything online in just a couple clicks. No more visiting a sim card shop and swapping physical sim cards. Order online, scan the QR code, follow the steps and you are connected in less than 2 minutes.

The most important reason to get an eSIM is because we would like to stay connected on our trip to Belgium without wasting money on high roaming costs. Our smartphones are pretty useless without a working data connection. Think about ordering a taxi through an app, finding nearby friends, restaurants and bars. Get directions from Google Maps or simply staying in touch with family back home, check your social media apps on long bus rides or your banking apps when paying contactless.

One of the best things about arriving in Belgium with an activated eSIM is that you are online as soon as the plane lands. More about when to instal your eSIM later.

There are so many reasons to stay connected when traveling to Belgium, but the most important reason is that it makes your trip to Belgium so much more convenient and fun!

At the same time we don't want to waste money on high roaming charges. Many mobile internet operators still charge $3 USD per MB for data roaming, that means just opening the Instagram app will already cost you 20 MB * $3 USD = $60 USD! Not kidding… it still is very common in 2025.

eSIMs are the easiest way to avoid high roaming charges!

Helping other travelers to save money while traveling the world is one of the reasons I started this travel blog. Providing essential travel tips is what made me start writing sim card guides from every country I visited and now on Traveltomtom you can already find more than 200 sim card guides from all over the world: Austria, Israel, Sweden, Norway, Denmark, Iceland, Poland, Ireland, Netherlands, Peru, Nepal, Bali, South Africa, Namibia, USA, Turkey, Egypt, China, Hong Kong, Singapore, Indonesia, Europe, United Kingdom, Spain, international eSIMs and many more.

So next time you are planning your adventure abroad come check out Traveltomtom for the latest prepaid sim card and eSIM advice for your holiday destination.

Overseas data roaming plans

So what about overseas data roaming plans? Well, not recommended! Why? Did you read the small letters at what data speed you can use data roaming? Pretty much all mobile internet operators limit the data speed for overseas data roaming plans, which means you end up with 3G data speed. Do you have the patience to handle 3G? It is frustrating when all around you at pretty much every amazing tourist destinations in Belgium there is 4G/LTE available.

And price-wise it should be a no brainer since you have seen how cheap the eSIMs for Belgium are.

Uncountable times travel friends have asked me: "Tom, can I use your hotspot? My data roaming plan is so slow, it is barely working!". Trust me, get yourself an eSIM or an international prepaid sim card for traveling to Belgium. Spend a couple dollars extra and be connected all the time instead of begging for WiFi or a hotspot from friends.

Where to buy an eSIM for Belgium?

Online

You can buy an eSIM for Belgium on the internet through an eSIM provider. There are multiple eSIM providers for Belgium. Traveltomtom compared multiple providers and concluded that the above mentioned ones are the best eSIM providers in 2025.

When buying an eSIM for Belgium through one of the above recommended eSIM providers you only need your email address and the eSIM is instantly ready to use after installation. There is no ID registration needed.

On arrival in Belgium

There are 3 mobile internet providers in Belgium: Proximus, Base and Orange and as per 2025 they also provide eSIMs for tourists. You can buy them in Proximus, Base and Orange stores in Belgium.

For more info about buying a prepaid sim card for tourists in Belgium in 2025 click on the link to read my complete guide and comparison of all the mobile internet providers in Belgium, including a comparison of the 4G/5G network.

When to order/activate an eSIM for Belgium?

You can order an eSIM for Belgium pretty much any time you want. Most eSIMs have to be installed on a phone within 1 month after purchasing, some even within 1 year, so you have time.

More important therefore is when do you instal/activate the eSIM. The validity of some eSIMs start straight after the installation, other eSIMs only start their validity when they connect the first time to a supported network.

Traveltomtom advices to instal your eSIM on the day of departure to Belgium or before. When in Belgium you will need an internet connection to instal your eSIM. Pretty much every international airport in Belgium has free WiFi so you could use that to install your eSIM. Just make sure it is a stable internet connection and therefore Traveltomtom advices you to install/activate your eSIM in your home country.

My personal advice is to instal your tourist eSIM for Belgium before you get into the plane and as soon as the plane lands you will be connected without any problems.

Traveltomtom also wrote a complete guide on how to buy a tourist sim card at Brussels Airport.

How to activate an eSIM

Installing and activating an eSIM is made as simple as possible. Everyone can activate an eSIM and the instructions on how to are very detailed and will be send to you instantly by email. But wait, it gets even easier. Just scan the QR code.

When you order an eSIM plan for Belgium you instantly receive a summery of your order including a QR-code after the payment is processed.

You will see a summary of your eSIM order including a QR code on your screen and at the same time you will also receive an email with the same QR code. The email contains instructions on how to instal and activate your Belgium eSIM.

But installing an activating an eSIM is as easy as scanning the QR code with the same phone where you want to activate the eSIM on. The QR contains all the information about your Belgium eSIM.

Once you scan the code you will be guided through a couple simple steps and within less than 1 minute your eSIM is successfully installed.

Very important is that you are connected to the internet when installing your eSIM otherwise you will get an error and issues can occur.

Tip: if you order an eSIM with the same phone where you want to instal the eSIM on then ask a friend or someone nearby to take a photo of the QR code and then you scan the QR code from his/her phone and start the installation.

Things to know before ordering an eSIM for Belgium

Here are some general tips for using eSIMs when traveling abroad. These tips do not only apply to Belgium eSIMs, but are general things you have to know before buying an eSIM.

Make sure your phone is unlocked

To make sure you didn't miss this, let me say this again: eSIMs only work in UNLOCKED phones. If your phone is unlocked then you can use any eSIM without any problems.

If your phone is locked then ask your mobile internet provider from your home country to unlock your phone before your trip to Belgium. It is likely that your mobile internet provider will charge you a fee for unlocking your smartphone.

If you are unable to unlock your phone you can look into getting a portable WiFi for staying connected when traveling to Belgium or better… bring a second unlocked phone on your trip to Belgium and use it as a portable WiFi device.

Which smartphones support eSIM?

Another very important thing you have to check before buying an eSIM is if your smartphone supports eSIMs. If you have any of the latest smartphones then there is no need to worry, all new smartphones of the well known brands support eSIMs.

The fastest way to find out if your phone is eSIM compatible is by asking Google the question: is my (your phone model) eSIM compatible? Simple as that!

If your phone is NOT eSIM compatible then there is no other solution and you can NOT use an eSIM for traveling to Belgium.

However, you can still order a physical sim card for Belgium on the internet before your trip. Check out Traveltomtom's complete guide for buying a prepaid sim card in Belgium or find out everything you need to know about international sim cards for traveling abroad in 2025.

Can I trust these eSIM providers?

All the eSIM providers for Belgium recommended in this guide are reputable eSIM providers reviewed and tested by Traveltomtom. All of them are licensed third party companies and resellers that partner or work directly with the mobile internet providers in Belgium.

Traveltomtom has used Airalo and SimOptions sim cards for more than 5 years and never really faced a major issue.

Check out the pros and cons of SimOptions in our review.

Jetpac is a fairly new eSIM provider, but Traveltomtom has tested and reviewed Jetpac now in more than 15 countries and is very happy with the performance and the extra perks like airport lounge access, etc.

Sim Local has more than 100 sim card shops and kiosks in international airports around the world and has been selling sim cards for tourists for more than 5 years. Read Traveltomtom's honest review about Sim Local eSIM provider.

The Traveltomtom Team has extensively tested and reviewed Nomad and they have proven to be a reliable eSIM provider. However, some mixed reviews have come back from the Traveltomtom Team about connectivity and activation.

Since Traveltomtom is not a fan of eSIMs with unlimited data and an FUP I hardly use Holafly, but when I did I was not happy. So now I let the Traveltomtom Team randomly test Holafly and just like myself, mixed reviews have come back. Some positive, some negative.

But there are many more eSIM providers. Traveltomtom has tested and wrote dedicated reviews for the following eSIM providers: GigSky, aloSIM, Ubigi, Airhub, Saily, Yesim, etc.

On top of that there is also Roamless, an eSIM provider with no data expiration. And Firsty, which offers free data in exchange for watching ads. Truly two game changers!

Traveltomtom does NOT sell Belgium eSIMs, Traveltomtom only compares and recommends you to use eSIMs for traveling to Belgium.

All eSIM providers have their own Helpdesk which you can contact may you encounter any problems or in case you want to claim a refund.

Can I keep my phone number from home with a Belgium eSIM?

Yes, you can and this is for many people a reason to order an eSIM to stay connected when traveling to Belgium. An eSIM can be used next to your physical or eSIM from your home country at the same time. You do not need a dual-sim phone for using an eSIM.

So you can have multiple eSIMs installed on your phone? Yes, no problem at all!

For example: you can turn off the mobile data from your sim card from home but still use it for texting and calling. Your new Belgium eSIM you can be used at the same time just for data to ensure you are not wasting money on high roaming costs.

This is also the trick to keep receiving sms for example for OTP (one time password) sms to login to applications.

Switching between physical and eSIMs is a matter of turning them on/off in the settings. Just always make sure your sim card from home is switched off for data roaming.

Can I make phone calls with a Belgium eSIM?

The Bouygues Telecom and Orange Holiday Europe international eSIMs from SimOptions offer calling and texting.

All other eSIMs are data-only eSIMs and any incoming/outgoing calls/sms are not supported.

If you buy a prepaid eSIM in Belgium you get calling and texting included.

Does an Belgium eSIM come with a phone number?

All the eSIMs that offer calling and texting also come with a phone number.

Data-only eSIMs do not come with a phone number and can not receive calls or sms.

aloSIM has a calling service including in their eSIM, but it is via an application called Hushed, not directly on the eSIM. This calling service is complimentary when buying an aloSIM eSIM.

Can I use 5G on a Belgium eSIM?

Yes, as of 2025 most of the eSIMs for Belgium are 5G ready.

Are there eSIMs for Belgium with unlimited data?

Yes, some eSIM plans for Belgium include unlimited data. GigSky and aloSIM have an unlimited data plan and Holafly only sells eSIMs for Belgium with unlimited data.

Traveltomtom is in general not a fan of data sim cards with unlimited data. Why? There is mostly a so-called FUP (Fair Use Policy), which is sometimes already after 2 GB data per day. That means that after 2 GB usage your internet will be slowed down to a data speed which is completely useless.

In general, unlimited data is pretty much never unlimited data at max speed. And trust me the reduced data speed will creep you out as it barely works!

So yes, there are eSIMs for Belgium with unlimited data but always read the fine print for more details, terms & conditions.

GigSky has an 'unlimited' data eSIM but at least mentions that you get 2.5 GB data per day at high speed. That means for 7 days you have 17.5 GB data. That is a lot.

A GigSky eSIM with unlimited data for 7 days = $24.99 USD.

alSIM mentions that you get 1.5 GB high speed data per day. That means for 10 days you get 15 GB data. The reduced data speed of 512 Kbps is absolutely useless. Barely enough for WhatsApp.

An aloSIM eSIM with unlimited data for 10 days = $35 USD.

Holafly does not specify what the FUP is and that makes it very tricky. Is it after 1 GB or after 2 GB?

A Holafly eSIM with unlimited data for 7 days = $29.90 USD.

On Holafly eSIMs I experienced a reduce in data speed after using more than 2 GB per day. When I contacted support they explained me that I had to wait the rest of the day until my data speed was restored to normal.

Those hours were a nightmare as my data speed was barely enough to use WhatsApp. Social media apps were not even loading! Imagine being on a 10 hour bus ride and after 2 hours you reached the FUP...

Therefore Traveltomtom does not directly recommend eSIMs with unlimited data.

Think about it... if you will not use more than 2 GB per day, then what is the point of having an eSIM with unlimited data?

Are eSIMs the best way to stay connected when traveling to Belgium?

eSIMs are the easiest and fastest way to get data on your phone when traveling to Belgium, but what is the best way?

There are 3 ways to stay connected when traveling to Belgium:

  • Local prepaid sim cards
  • International prepaid sim cards
  • eSIMs

Let's compare eSIMs, local prepaid sim cards and international prepaid sim cards, for you to find out what is your preferred way of staying connected.

Local prepaid sim cards

If you use a lot of data then in general local prepaid sim cards are a cheaper way to stay connected. But not in Belgium. Prepaid sim cards are pretty expensive.

The big difference with eSIMs is that a local prepaid sim card can only be purchased on arrival in Belgium in a phone store.

More info about the best Belgium sim cards for tourists can be found in my complete guide for buying a prepaid sim card in Belgium in 2025.

International prepaid sim cards

If your smartphone is not eSIM compatible you can order an international prepaid sim card for traveling to Belgium. Some of them are great for Belgium as well as in all other countries in for example Europe, Americas and Asia and you can easily order them online.

If after visiting Belgium you are traveling onwards in Asia then check Traveltomtom's list of the best sim cards for traveling internationally in 2025.

A pre-activated physical sim card will be delivered to your home address before your trip. You put this physical sim card in your phone and as soon as the plane touches the ground and the sim card connects to a supported network you are online. Plug and play!

Click here to order an international prepaid sim card for Belgium directly online.

eSIMs

As explained throughout the article there are two different eSIMs:

  • eSIMs that you buy on the internet through a third party
  • eSIMs that you buy in Belgium in a mobile internet provider store

As shown in the comparison the mobile internet operators: Orange, Base and Proximus also sell eSIMs for tourists in phone stores in Belgium.

But as of February 2025 at Brussels Airport they do NOT sell eSIMs, there are only physical prepaid sim cards for tourists available at Brussels Airport.

eSIMs vs. local prepaid sim cards

Getting an eSIM on the internet is the easiest way to stay connected when traveling to Belgium, no doubt. You arrange everything online within just a couple clicks. Right here, right now and you are all set for your trip to Belgium. You arrive prepared and there is no need to visit a sim card shop on arrival in Belgium.

As soon as the plane lands, you are online!

Buying a tourist sim card at Brussels Airport is possible, but at tourist prices. There are no eSIMs for tourists available at Brussels Airport, only physical prepaid sim cards.

Buying a local prepaid sim card is only possible in a phone store in Belgium.

Price difference

But what is cheaper? An eSIM or a local prepaid sim card for tourists?

Prepaid sim cards in Belgium are pretty expensive. This is the best-buy Base prepaid sim card:

  • 8 GB data + 100 minutes & 5,000 sms = €25 EUR -$26 USD

As you can see, much more expensive than eSIMs from Jetpac, Airalo, SimOptions, etc.

For more info check out my article about the best prepaid sim cards in Belgium in 2025.

After a long flight you just want to go to your hotel and it is often a big task to go to a sim card store and get connected. Another reason why Traveltomtom recommends to order an eSIM online.

Data speed

Another difference between a local prepaid sim card and an eSIM is that eSIMs are often through a third party, a so called MVNO (Mobile Virtual Network Operator). These MVNO's operate on the network of one of the main mobile internet operators and basically buy bandwidth.

This may sound a little bit too technical, but what it means is that eSIMs through an MVNO are the last ones in line when the line is busy. Especially during peak times, the performance of an eSIMs is less compared to a local prepaid sim card from a mobile internet operator.

Bottomline: the data speed of eSIMs can be less compared to a local prepaid Belgium sim card.

I am sure some of the above tips for finding the best eSIM for your trip to Belgium were helpful. I hope that after reading through my comparison, tips and tricks it was easier to make a decision and order your eSIM for Belgium right away.

If you still have any questions about eSIMs then please leave me a comment below and I am more than happy to help you out.

Curious what the life of a full time nomadic traveler looks like? Go check out my Instagram account @traveltomtom and follow along with daily updates from around the world about the good, the bad and the ugly about traveling.

Traveltomtom is on the road to 197, meaning I would like to travel to every country in the world. As of February 2025 I have visited more than 155 countries, still about 40 to go, but no rush.

Enjoy your trip to Belgium!