No, simpleSIM does not provide a true unlimited data eSIM for Luxembourg. All of simpleSIM’s Luxembourgh‑specific plans list a hard data cap, most commonly 1GB per day, and after that data the speed is reduced to 512 kbps. The name “Unlimited” is used for marketing; it does not mean unlimited high‑speed data.
Travelers can still choose from a range of fixed‑data plans that offer larger allowances. For example, the simpleSIM Luxembourg 20GB + Calls & Texts plan gives 20GB of data for 30 days, and the simpleSIM Europe 50GB + Calls & Texts plan provides 50 GB for 30 days. These plans allow more data than the daily‑cap options and can be cheaper for heavy users.