eSimfly lists 12 single‑country data plans that cover Belgium alone. In addition, 60 multi‑country packages are available that include Belgium along with other European markets. The single‑country options run from about $1.99 to $10.99 and provide 1 GB to 5 GB of data, while the larger multi‑country bundles can cost up to $121.38 for up to 120 GB. Some of the offers cap data on a daily basis, giving you a fixed daily allowance, whereas most others provide a single data amount that is usable for the entire validity period. Tethering is permitted on many of the plans, and a reduced speed of 1, 000 Mbps may apply in certain cases.