NextSIM does not provide a plan that offers truly unlimited high‑speed data for Luxembourg. All plans that carry the word “Unlimited” in their name contain a fixed high‑speed allowance – typically 1 GB per day or 2 GB per day – after which the speed is throttled to a reduced rate (512 kbps for the Standard line, 2000 kbps for the Plus line).
If a user requires more than the allotted daily amount, a fixed‑data option is a more suitable choice. For example, the eSIM 100GB 30 Days Luxembourg plan delivers 100 GB of data for 30 days, and the eSIM 50GB 30 Days Luxembourg plan offers 50 GB for the same period, both with no throttling until the data cap is reached. These fixed‑data plans can be more economical for travelers who anticipate high usage.