NextSIM does not provide any truly unlimited high‑speed data plans for Gibraltar. The plans that carry “Unlimited” in their names, such as eSIM Gibraltar Unlimited 1Days Standard and eSIM Gibraltar Unlimited Plus 7Days Standard, actually supply a fixed amount of data—1GB or 2GB respectively—before the speed is reduced to 512kbps or 2000kbps. If a traveler needs more than the capped amount, the data rate drops, so the plan is not unlimited in the strict sense.
For users who require larger data allowances, nextSIM offers fixed‑data options such as the eSIM Gibraltar 100GB 30Days Standard plan or the eSIM Gibraltar 50GB 30Days Standard plan. These plans give a set amount of high‑speed data for a given validity period without throttling, and can be more cost‑effective for heavy data use than the “Unlimited” labeled plans.