Roamify does not provide a true unlimited data eSIM for Monaco. All of the plans listed carry a hard data cap—such as 15GB, 20GB, 40GB, 70GB, 100GB, 200GB, or 500GB—and are valid for a fixed period of 30 days or 90 days. The term “Unlimited” in the plan names refers to unlimited calls and SMS, not to unlimited high‑speed data. If a traveler needs a larger amount of data, Roamify offers fixed data plans such as the 200GB plan (30‑day validity) or the 500GB plan (90‑day validity). These larger fixed bundles are usually the most cost‑effective option for heavy data users.