eSIMCard in Belgium: an unpriced option in a cheap market

Start with what we don't have

Our Belgian plan data lists four sellers — Airalo, Saily, Nomad and Holafly, the first and third of them on verified prices — and eSIMCard is not one of them. No price, no allowance, no duration, no host network. The page that stood here named Orange and Proximus as eSIMCard's Belgian networks and quoted a starting price; that claim does not come from eSIMCard, and neither does the figure. Both were scraped out of an automatically written article, and we have deleted rather than rewritten them.

So this is not a review in the sense of a verdict on eSIMCard. It is the price of the country, which is the thing that actually decides whether any given seller's Belgian plan is worth buying.

Why we hold no eSIMCard price anywhere now

This blank used to be specific to Belgium. It no longer is. We carried 78 eSIMCard rows across 31 countries; on 18 August 2026 we read eSIMCard's own pages and found them wrong, and every one of those rows has been withdrawn from the tables and from the cheapest-per-gigabyte ranking.

We could not replace them with the right figures either. eSIMCard prices the same size over the same duration at two or three different amounts, depending on a Standard/Universal toggle, a per-plan speed limit hidden inside each plan's details modal, and carrier sets that vary plan by plan. Our records hold only provider, size, days and price, so any single figure we stored would flatten a throttled plan and a full-speed one into one row. Our eSIMCard page sets out the reasoning.

None of that is a verdict on the shop. eSIMCard has a working checkout, a catalogue far wider than our rows ever showed, and it is the only one of the six sellers here that publishes the host network its plans use — its Japan page names three Japanese operators, where Airalo, Nomad, Saily and Holafly name none anywhere. What we have no read of is its Belgium listing, which is why this page still prices the market instead.

Belgium is a three-day country

Most people are here for a long weekend — Bruges, Ghent, Brussels, home. That shapes what you should pay. Airalo's Belgian entry plans, checked on its own site on 13 August 2026, start at $4 for 1 GB and $5.50 for 3 GB, both on a three-day clock. Stretch to a week and it is $6 for 3 GB or $7.50 for 5 GB. That is the benchmark: a city break's worth of data in Belgium costs under ten dollars, and any plan asking meaningfully more is asking too much.

For longer stays the verified reference points are $8.50 for 5 GB over 30 days, $13.00 for 10 GB, $20.00 for 20 GB and $32.50 for 50 GB — a dollar a gigabyte at 20 GB, and 65 cents at 50.

If the offer is uncapped, price it by the day

Unlimited plans are hard to compare on sticker price, so divide. These are the two uncapped ladders we hold for Belgium:

That works out between $2.40 and $3.17 a day on Airalo's ladder and between $2.46 and $4.10 on Holafly's, and Airalo is cheaper at every one of the six lengths. Thirty days is as long as either sells: the 25-day row at $68.90 and the 90-day plan at $99 this page used to carry do not exist, in Belgium or anywhere. Anything pitched above about $4 a day for uncapped Belgian data is expensive by the standards of this market.

Two decisions that matter more than the brand

Metered or uncapped. Belgium is small, densely covered and full of Wi-Fi. Twenty gigabytes at a verified $20 covers a month of maps, messaging, music and video calls for most people, and costs less than a third of uncapped for the same period. Uncapped is for tethering a working laptop, not for tourism.

eSIM or a Belgian SIM. A local prepaid SIM runs about $12 at the airport, and Belgium requires passport or ID registration before it works. That means a staffed counter, a queue and a form on the day you land. The eSIM's real advantage here is not price — it is that it is already installed and active when the plane doors open. Our full comparison of what each seller charges is on the Belgium hub.

One thing no eSIM seller in our data can settle for you: which network you will actually be on. None of the Belgian network claims we hold have been independently confirmed, and Belgian coverage does thin — in the Ardennes forests, in the border zones towards Luxembourg and Germany, and indoors around the coastal dunes at De Panne. If that matters more than convenience, buy locally and choose the operator yourself.

Verdict

Unjudged, deliberately. eSIMCard may sell a perfectly good Belgian plan; we hold no read of its Belgian listing, and we will not guess. Take the numbers above to its product page. If it beats $6 for a short break, $20 for a month of 20 GB, or $2.40 a day uncapped, it is competitive here. If it doesn't, someone in our table already does.