1 · The short answer

Six travel eSIMs sell a Belgium plan and get most of the traffic for this search. We priced all six on the same day, for a weekend in Brussels, two weeks by train between Brussels, Bruges, Ghent and Antwerp, and a month, and read the fine print on unlimited. Here is where each one wins.

OUR PICK
✓Cheapest unlimited for two weeks or a month

Unlimited data at full speed for 2 weeks at $12.99 or 30 days at $21.99, one payment each, nothing renews. Airalo asks $42 for 15 days and $71.50 for the month.

Airalo
✓Cheapest 3 days, and 20 GB for $20

3 days of unlimited at $9.50 and 20 GB for 30 days at $20, on Telenet.

Ubigi
✓Cheapest 10 GB

10 GB for 30 days at $12, on Orange and Telenet, installed by QR code.

Holafly
✓Simplest unlimited, all three networks

Days, not gigabytes, no daily cap stated for your own phone, on Proximus, Orange and Telenet. $27.50 for a week.

Two weeks of unlimited data in Belgium
$12.992 weeks62% less
Next cheapest: Ubigi at $34.00, 15 days
A month of unlimited data in Belgium
$21.9930 days60% less
Next cheapest: Ubigi at $55.00, 30 days

Prices read on 28 September 2026: Airalo, Holafly, Saily, Nomad, Ubigi on their own sites or listings, Ringo Light from its catalogue. All in US dollars unless stated. Treat every number as a snapshot.

See the full price index for every country.

Travelling further? Compare the eSIM for Europe and the best eSIM for Europe, all brands priced.

2 · The prices, charted

Two weeks of unlimited data in Belgium

One payment, US dollars, 28 September 2026. The rivals sell 15 days, Ringo Light 2 weeks. Ubigi's 15 days is 30 GB at full speed, then 2 Mbps. Nomad sells no 15-day unlimited.

$12.99 · 2 weekscheapest
Ubigi
$34.00 · 15 days
Airalo
$42.00 · 15 days
Saily
$48.99 · 15 days
Holafly
$50.50 · 15 days
A month of unlimited data in Belgium

The 30-day plan at each brand. Ubigi's month is 60 GB at full speed, then 2 Mbps. Nomad sells no 30-day unlimited.

$21.99 · 30 dayscheapest
Ubigi
$55.00 · 30 days
Airalo
$71.50 · 30 days
Saily
$71.99 · 30 days
Holafly
$73.90 · 30 days
10 GB in Belgium

Holafly sells no buckets. Ringo Light sells no bucket either: its 2 weeks is unlimited, so it lasts 2 weeks, not 30 days.

Ubigi
$12.00 · 30 dayscheapest
$12.99 · 2 weeks, unlimited
Airalo
$13.00 · 30 days
Nomad
$16.00 · 30 days
Saily
$16.99 · 30 days

3 · Side by side

Swipe to compare →

AiraloHolaflySailyNomadUbigi
ModelBuckets or unlimited daysUnlimited days onlyBuckets or unlimited daysBuckets or unlimited daysBuckets, then 2 MbpsUnlimited trips: 2 weeks or 30 days
Unlimited, 3 days$9.50$11.90No 3-day plan$11No 3-day planNo 3-day plan
Unlimited, 7 days$21$27.50No 7-day plan; 10 days $34.99$2520 GB, then 2 Mbps, $19No 7-day plan; 2 weeks $12.99
Unlimited, 15 days$42$50.50$48.99No 15-day plan; 10 days $3330 GB, then 2 Mbps, $342 weeks $12.99
Unlimited, 30 days$71.50$73.90$71.99No 30-day unlimited60 GB, then 2 Mbps, $55$21.99
10 GB, 30 days$13No buckets$16.99$16$12No buckets; unlimited 2 weeks, $12.99
20 GB, 30 days$20No buckets$25.99$2025 GB $21; a 20 GB monthly plan at $16 renewsNo buckets; unlimited 30 days, $21.99
Full speed on unlimited3 GB a day, then 1 MbpsNo daily cap stated; sharing 1 GB a day5 GB a day, then slowed2 GB a day, then 1 MbpsA fixed amount, then 2 MbpsUnlimited data at full speed
NetworksTelenetProximus, Orange, TelenetNot named by SailyProximus, OrangeOrange, TelenetLocal partner network
Renews?NoNoNoNoMonthly plans doNo, one payment; the trip ends when it ends
App neededYesNo, QR codeYesOptionalNo, QR installNo, the eSIM arrives by email

Get Ringo Light for Belgium, from $12.99.

Installed once, next to your own SIM. Your eSIM arrives by email in seconds.

Loading plans for this destination.

We sell data eSIMs for now to fund the full Ringo service. Ringo is self funded. Every plan bought here pays for the build of one plan that works everywhere.

Want to keep your own number abroad?

The full Ringo service

That is the full Ringo service: one plan that works everywhere, with your own number included.

It is a separate product from Ringo Light and it is still being built, so it is not on sale yet. Join the waitlist to hear when it opens.

4 · What to do in Belgium, and what your phone needs for it

Eight places most first trips include, from the Grand-Place to the Menin Gate, with the one thing your data does for you at each. Most are an hour or less by train from Brussels, and all have good 4G and 5G.

The Grand-Place, Brussels
BrusselsThe Grand-PlaceThe old market square, ringed by gilded guildhouses and the Gothic town hall, and on the UNESCO list. Come back after dark, when the facades are lit.✓Brussels signs switch between French and Dutch. Camera translation reads menus in both.Photo: Trougnouf (Benoit Brummer), CC BY 4.0
The Atomium, Brussels
BrusselsThe AtomiumNine steel spheres built for the 1958 World Fair, with exhibitions inside and a view over the city from the top sphere.✓Metro line 6 runs to Heysel. Tap your contactless card or phone at the gate, then book your Atomium time slot on the phone.Photo: calflier001, CC BY-SA 2.0
The Rozenhoedkaai and the Belfry, Bruges
BrugesThe Rozenhoedkaai and the BelfryThe canal corner with the Belfry behind it is the picture of Bruges. Climb the 366 steps of the Belfry, or take a boat along the canals.✓Bruges is about an hour from Brussels by train. The SNCB app sells the ticket and shows the platform.Photo: Ank Kumar, CC BY-SA 4.0
Graslei and the three towers, Ghent
GhentGraslei and the three towersMedieval guildhouses along the river Leie under the towers of St Nicholas, the Belfry and St Bavo's, home of the Ghent Altarpiece. The Gravensteen castle is a short walk away.✓The centre is closed to cars. The De Lijn app sells tram tickets for the ride from Gent-Sint-Pieters station.Photo: Giles Laurent, CC BY-SA 4.0
Antwerp Central Station, Antwerp
AntwerpAntwerp Central StationA stone hall under a glass and iron dome, finished in 1905, often called one of the most beautiful stations in the world. The diamond district starts next door.✓Trains to the Netherlands leave from here. Check live platforms and delays in the SNCB app.Photo: Wim Bladt, CC BY-SA 3.0
The Grote Markt and the Oude Markt, Leuven
LeuvenThe Grote Markt and the Oude MarktA university town under half an hour from Brussels, with a lace-like Gothic town hall and the Oude Markt, a square lined with bars end to end.✓Most bars and cafés take cards and phone wallets; keep a little cash for the smallest ones.Photo: Paulvanh, CC BY-SA 4.0
Dinant and the citadel, Dinant, on the Meuse
Dinant, on the MeuseDinant and the citadelAn onion-domed church at the foot of a cliff, with the citadel on top and the river in front. Adolphe Sax, who invented the saxophone, was born here.✓Signal thins in the Ardennes valleys. Save the map offline before you kayak the Lesse or walk the hills.Photo: DimiTalen, CC0
The Menin Gate, Ypres
YpresThe Menin GateA memorial arch carved with the names of more than 54,000 Commonwealth soldiers missing in the First World War. The Last Post sounds under it every evening at 8 pm.✓Search a family name in the Commonwealth War Graves Commission database before you go, and find the panel on your phone.Photo: Mark Ahsmann, CC BY-SA 4.0

5 · If you want unlimited for two weeks or a month: Ringo Light

Most trips to Belgium start in Brussels and spread out by train: Bruges, Ghent and Antwerp are each under an hour away. For 15 days, Airalo asks $42, Saily $48.99 and Holafly $50.50. For a month, $71.50, $71.99 and $73.90. Ubigi is cheaper at $34 and $55 for a fixed amount at full speed. Ringo Light charges $12.99 for 2 weeks and $21.99 for 30 days, one payment each, nothing renews.

Read what unlimited means before you pick. Airalo gives 3 GB a day at full speed, then 1 Mbps. Saily gives 5 GB a day, Nomad 2 GB. Ubigi gives 30 GB for 15 days or 60 GB for the month, then 2 Mbps. Holafly states no daily cap for your own phone and limits sharing to 1 GB a day. Ringo Light is unlimited data at full speed for 2 weeks or 30 days.

For a short trip, Ringo Light sells no 3-day or 7-day plan. Airalo sells 3 days of unlimited at $9.50, the cheapest here, and Ubigi a week with 20 GB at full speed for $19. Our 2 weeks at $12.99 still costs less than any rival's week.

6 · Networks and roaming in Belgium

Belgium has three big networks: Proximus, Orange Belgium and Telenet, which also runs BASE. All three cover the cities, the motorways and the train lines with 4G and 5G. Signal thins in the deep valleys of the Ardennes, around Dinant and Bouillon. Holafly is the only brand here that names all three; Airalo rides Telenet, Nomad Proximus and Orange, Ubigi Orange and Telenet.

If your phone plan is from another EU country, you roam here at home prices within a fair use limit, and you may not need a travel eSIM at all. Travellers from the US, the UK, Canada or Australia usually pay a daily roaming fee, and that is where a travel eSIM saves money.

7 · If you want a data bucket: Ubigi or Airalo

  • Ubigi, $12 for 10 GB. The cheapest 10 GB, on Orange and Telenet, no app needed. 25 GB for 30 days at $21.
  • Airalo, $13 for 10 GB. Its Belganet plan on Telenet, 20 GB for $20, buckets from $4 for 1 GB.
  • Nomad, $16 for 10 GB. 20 GB for $20 on Proximus and Orange with 5G.
  • Saily, $16.99 for 10 GB. 20 GB at $25.99. Its listing is from June; saily.com would not load for us.
  • ✓Ringo Light, no buckets. Our 2 weeks is unlimited for $12.99 and our 30 days unlimited for $21.99. For 10 GB that lasts a month, Ubigi at $12 is the better buy, and Airalo's and Nomad's 20 GB at $20 both cost less than our month. We would rather you read that here than at checkout.

8 · What Ringo Light is

Ringo Light is our own data eSIM, sold to fund the full Ringo, one plan that works everywhere with your own number ported onto it. For Belgium it sells two trips, both unlimited data at full speed with no speed cap: 2 weeks at $12.99 and 30 days at $21.99. One payment, nothing renews. The eSIM arrives by email in seconds and installs in one scan, no app.

The card to buy it is further up this page, just after the side-by-side table.

9 · Pick by trip

A weekend in Brussels

Airalo unlimited, 3 days, $9.50. Ringo Light sells no 3 days; its 2 weeks is $12.99 if the trip might run longer.

A week or two by train, Brussels to Bruges and Ghent

Ringo Light unlimited, 2 weeks, $12.99, less than any rival charges for one week.

Two weeks, light use, budget first

Ubigi 10 GB for 30 days at $12.

A month of work from Brussels or Antwerp

Ringo Light unlimited, 30 days, $21.99. Holafly at $73.90 if you want all three Belgian networks.

You need your own number to keep ringing

None of these travel plans does that. The full Ringo, which Ringo Light funds, ports the number you have.

10 · Frequently asked questions

Which eSIM is cheapest for Belgium?+
For two weeks or a month of unlimited data, Ringo Light: $12.99 for 2 weeks and $21.99 for 30 days on 28 September 2026, against $42 for 15 days and $71.50 for 30 days at Airalo. For 3 days, Airalo at $9.50. For 10 GB over 30 days, Ubigi at $12; for 20 GB, Airalo or Nomad at $20.
Which Belgian network will my travel eSIM use?+
Airalo rides Telenet, Nomad Proximus and Orange, Ubigi Orange and Telenet, and Holafly all three. Saily does not name its network on its listing. All of them cover Brussels, Bruges, Ghent, Antwerp and the train lines between them.
Is an unlimited eSIM really unlimited in Belgium?+
Every brand has a limit somewhere. Airalo slows you after 3 GB a day, Saily after 5 GB, Nomad after 2 GB, Ubigi after its fixed full-speed amount. Holafly states no daily cap for your own phone. Ringo Light is unlimited data at full speed.
Do I need an eSIM if my phone plan covers the EU?+
If your home plan is from an EU country, roaming in Belgium is usually included at home prices, within a fair use limit. Travellers from the US, the UK, Canada or Australia usually pay a daily roaming fee, and that is where a travel eSIM saves money. A Belgian prepaid SIM from a shop has to be registered with an ID before it works.

11 · How we compared, and our sources

We priced Airalo, Holafly, Saily, Nomad, Ubigi and Ringo Light for Belgium on 28 September 2026, all on the same day, in US dollars. Each rival's price comes from its own website where it showed dollars, otherwise from an esimdb.com listing, and every source and its date is listed below. Ringo Light's prices come from the catalogue our checkout charges.

We compare the trips people actually book: a week, two weeks and a month of unlimited data, and a 10 GB bucket. We read each brand's fair use and speed rules and quote them as the brands state them. We did not run speed tests, so this page makes no speed claims for any brand.

Ringo Light is our own product. We put it in the table on the same terms as everyone else, and where a rival is the better buy the page says so.

Left out: Maya Mobile. We could not read its own prices for this country on the day, so it stays out rather than being guessed.

Written and priced by the Ringo team. Prices change often; if you spot one that has moved, tell us through the contact page and we will update the table.