ByteSIM does not provide a truly unlimited data eSIM for Martinique. The plans that carry the “Unlimited” label actually give a fixed high‑speed allocation of 1 GB per day and, once that limit is reached, the speed falls to 10240 kbps. Travelers who need a larger, unthrottled data amount can choose from ByteSIM’s fixed data plans, such as the 50 GB package for 3 days or the 50 GB package for 5 days, both of which are available for use in Martinique. These fixed plans can offer a more cost‑effective solution for users who require extensive data usage.