No, nextSIM does not offer a true unlimited data eSIM for Saint Barthélemy. All of the plans listed for that destination are capped at a specific amount of high‑speed data, whether it is 1 GB per day, 2 GB per day, or a fixed total such as 10 GB, 20 GB, or 50 GB for a 30‑day period. The plans that contain the word “Unlimited” in their names provide a set data allowance; once that amount is used the speed is reduced to 512 kbps or 2 Mbps, rather than remaining unbounded.
If a higher data volume is desired, nextSIM offers fixed data plans that can be more cost‑effective for most travelers. For example, the 50 GB plan for 30 days is the largest available and costs $140.09 USD, while the 20 GB plan is available for $62.04 USD. These fixed plans allow travelers to use as much data as they need within the 30‑day validity window, and they can be a better choice if heavy data usage is anticipated.