No, Numero eSIM does not provide an unlimited data eSIM for Cuba. The only plan listed for that destination is a fixed data plan: Cuba 1GB for 7 days. This plan offers a hard limit of 1GB that must be used within the 7‑day validity period. If a traveler requires more data, they can consider purchasing a larger fixed data plan or upgrading to a higher‑capacity option if available. For most casual users, a fixed data plan can be more cost‑effective than a pay‑as‑you‑go approach, unless the traveler expects to consume very large amounts of data.