Mobile Plan Under €10 in Belgium: Which One to Pick?

In Belgium, a mobile plan under €10/month is easy to find: the real question is what you get for that price. In 2026, DIGI gives the most data (about 20 GB for €5/month), while other offers under €10 make do with 1 to 5 GB. Here's how to decide based on your usage, and the network hiding behind each offer.

A low-cost mobile plan is a discounted subscription, often offered by an alternative operator (MVNO) that rents a major operator's network rather than running its own. Under €10/month, these offers exist in numbers — but the data gap between operators is far wider than the price gap.

What do you really get for under €10/month?

It ranges from a spare plan with no data to a real subscription with 20 GB and unlimited calls. Under €10, it's the included data that makes all the difference, not the two or three euros between offers.

At the entry level, plans like Proximus Mobile Essential drop to €2/month, but with almost no data (Mon-Abonnement-Gsm.be, 2026). They only work as a backup phone or a second SIM. Just above, offers at €7-8 (Yoin, Edpnet, entry Scarlet) provide 1 to 5 GB: fine if you're often on Wi-Fi, short if you use data on the move.

The big gap is DIGI. For €5/month, the operator offers about 20 GB and unlimited calls, rising to 60 GB for €9/month (Test-Achats, 2026). At almost equal prices, you go from 3 GB to 20 GB depending on the brand. That's where the real choice is made, not on the headline number.

Which operators offer a mobile plan under €10 in Belgium?

Five players mainly: DIGI, Scarlet, Yoin (ex-Youfone), hey! and Edpnet. These are largely alternative operators betting on price, with very different data allowances.

Here are the offers collected in July 2026 from operator websites, Astel and Mon-Abonnement-Gsm.be. Low-cost prices move often: check the exact plan when you subscribe.

Indicative prices, excluding SIM activation fees (often €10 to €15 once). Small-plan data varies with promotions.

The lesson is clear: at almost identical budgets, DIGI offers five to ten times more data than the others. Brands on the Proximus network (Scarlet, Yoin) reassure on coverage but stay stingy on data. hey!, backed by the Telenet network, plays it simple for a price close to €9.

Why does the network behind the offer change everything?

Because a cheap plan has no antennas of its own: it borrows a major operator's network. The quality of your connection therefore depends on the host network, not the logo on the bill.

Belgium has three legacy antenna networks — Proximus, Orange and Base (Telenet) — plus DIGI's network, under rollout since its arrival in late 2024. The other brands are MVNOs: they rent one of these networks. Scarlet, Yoin and Mobile Vikings run on Proximus; hey! relies on Telenet. In practice, a Scarlet plan at €8 gets the same coverage as a Proximus, sometimes with a capped speed.

That detail matters for coverage. According to 2026 coverage data, Proximus leads on 5G (around 85% of the population) and 4G (99.8%), Orange follows closely on 4G, and Base completes the trio. If your priority is strong signal at a specific address, pick the network first, then the low-cost brand riding on it. The IBPT, the Belgian telecom regulator, publishes the coverage maps you can check.

Does an MVNO get weaker signal than the host operator?

In theory no: the signal is the same since the antennas are the same. In practice, some MVNOs face a speed cap or lower network priority at peak times, set by contract. Geographic coverage, however, is identical to the host's. For everyday use — messaging, browsing, light streaming — the difference is rarely noticeable; it shows mostly on very large downloads.

DIGI, Scarlet or Yoin: which one for which use?

DIGI for cheap data, Scarlet for the peace of mind of the Proximus network, Yoin for a minimal spare plan. The right choice depends on your real usage, not on a universal ranking.

If you use data on the move — social media, maps, streaming — DIGI is unbeatable: about 20 GB for €5/month, nobody comes close in 2026. If you're mostly on Wi-Fi and above all want a proven network, Scarlet at €8 on the Proximus infrastructure does the job with about 3 GB. Yoin or an Essential plan suit a second SIM or a phone that gets little use.

A concrete case: for a student watching videos on the train, a DIGI at €5/month avoids out-of-bundle charges from the second week; for a parent who just wants to reach their kids, a €2-7 plan is more than enough. Paying for 40 GB you never use costs as much, in practice, as running out of data every month.

What traps should you avoid on cheap plans?

Three above all: expensive out-of-bundle charges, the entry promo that rises, and activation fees. Each can turn a €5 plan into a heavy bill.

The first trap is out-of-bundle usage. As soon as the data allowance runs out, every extra megabyte is charged, and calls outside the bundle can cost several tens of cents per minute (Mon-Abonnement-Gsm.be, 2026). On a small plan of 1-3 GB, the bill climbs fast if you forget to watch your usage. Always check the out-of-bundle rate before choosing a data-stingy offer.

The second trap is the entry promo: some offers show a low price for the first months, then rise. Note the post-promo price. The third is the SIM activation fee, often €10 to €15 once, to add to the real cost of the first year. Good news, though: DIGI committed not to raise its prices in 2026 (DIGI, 2026), a rare stability in a market where Proximus, Orange and Telenet raised prices in January 2026 (Test-Achats, 2026).

The real cost over 12 months

Over a full year, the gap between two plans under €10 runs into tens of euros once data and activation are factored in. It's the duration that reveals the real deal.

Let's compare two profiles. A data user who takes DIGI at €5/month with 20 GB pays €60 over the year, plus about €15 activation: around €75 to stay comfortable all year. The same user on a €7 plan with 2 GB would overshoot almost every month, adding out-of-bundle charges that easily push the yearly bill past €120. Conversely, for minimal use, a €2-7 plan stays unbeatable and triggers no surcharge.

To go further, compare our overview of the cheapest mobile operator in Belgium or our pick of the best alternative operators (MVNOs). For a broader choice, read our guide on which mobile operator to choose in Belgium.