eSIMCard does not offer a truly unlimited high‑speed data plan for Luxembourg. All of the plans that include “Unlimited” in their name provide a fixed allocation—most commonly 1GB per day or a set number of gigabytes—and after that threshold the connection is throttled to a reduced speed (for example 512kbps or 2000kbps).
Travelers who want more data without speed restrictions can choose from the fixed‑data options. For example, a 50GB plan for 30 days costs $31.39, and a 35GB plan for the same period is also priced at $31.39. These plans give large, unthrottled data allowances and can be more cost‑effective for heavy data users compared to the “unlimited” plans that shorten speed once the hourly or daily cap is reached.