Billion Connect does not provide an unlimited data eSIM for Mauritania. The provider offers fixed‑data plans instead, such as a 100GB bundle valid for 31 days, a 50GB bundle for the same period, and a 20GB option. These fixed plans allow a substantial amount of data, and for most travelers they can be more cost‑effective than purchasing an always‑available unlimited option, which is not available from Billion Connect in Mauritania.