Stellar eSim does not provide a truly unlimited high‑speed data plan for Luxembourg. All of its plans for Luxembourg list a data cap of 3 GB (or 2 GB for some multi‑country packages), meaning the data is limited to that amount before any speed reduction takes place.
Travelers looking for more data can choose from Stellar eSim’s fixed data plans, such as the 100 GB 180‑day bundle for Luxembourg, the 50 GB 180‑day bundle, or a 3 GB plan lasting 30 days. These options give larger data allowances within a set validity period and can be more cost‑effective for moderate to heavy data usage.