SeferESIM does not offer a true unlimited data eSIM for Luxembourg. The plans that carry “Unlimited” in their names provide 1GB/day of high‑speed data and, once that daily cap is reached, the speed is reduced to 1000kbps; the data allowance is therefore not unlimited.
Travelers looking for higher data limits can choose from SeferESIM’s fixed data plans. Examples include the Luxembourg 50GB plan with 180‑day validity, the Europe 100GB plan covering 35 areas with 180‑day validity, and the Europe 50GB plans available for 90 or 30 days. These plans give a larger data allowance within a set validity period and can be more cost‑effective for users who need more than 1GB of high‑speed data per day.