simpleSIM does not provide a truly unlimited data eSIM for Belgium. The plans labeled “Unlimited” give 1GB per day of high‑speed data; once that amount is used the speed is reduced to 512 kbps.
Travelers who need more data can choose fixed data plans. For example, the eSIM Belgium 20GB + Calls & Texts plan offers 20GB of high‑speed data for 30 days, and the eSIM Europe 50GB + Calls & Texts plan provides 50GB for 30 days. These plans give a larger data allowance without the speed reduction that applies to the “Unlimited” plans.