While the plans on eSIMCard use the word “Unlimited” in their names, none provide truly unlimited high‑speed data within Luxembourg. Each plan has a defined data cap—examples are 1GB/day, 2GB/day or fixed amounts such as 50GB or 100GB over the validity period—after which the speed is throttled to 500kbps for the “Unlimited” label or to 2000kbps for the “Unlimited Plus” variants.
Travelers can instead choose the fixed‑data options that give a large allowance without throttled speeds. For instance, a 50GB plan for 30 days costs $31.39, a 100GB plan for 90 days is available for $191.83, and a 60‑day plan delivering 53.69GB is priced at $64.57. These plans offer guaranteed high‑speed data for the full data amount, making them a cost‑effective choice for most users who need substantial, unrestricted connectivity in Luxembourg.