No, nextSIM does not provide a truly unlimited data eSIM for Saint Barthélemy. All plans listed under the “Unlimited” name actually have capped high‑speed data – for example, the Standard plans give 1GB per day and the Plus plans give 2GB per day – and the speed drops to 512 kbps or 2000 kbps after the limit is reached.
NextSIM offers fixed‑data alternatives that may suit travelers who need more data at a lower cost. One option is the eSIM 10GB 30 days plan, priced at $36.59 USD, and another is the eSIM 5GB 30 days plan at $20.12 USD. These plans provide a larger, though still capped, amount of high‑speed data without the speed throttling that applies to the Unlimited‑named plans.