yaySIM does not sell an unlimited data eSIM for Sint Maarten. All available plans for the island offer a hard data cap that must be used within a clear validity period. For travelers who need a larger data allowance, fixed data plans such as the CB‑25_10_30 plan, which gives 10GB for 30 days, and the CB‑25_5_30 plan, offering 5GB for 30 days, are the most generous options currently listed. Choosing a fixed data plan can be more cost‑effective for most users unless they are extremely heavy data consumers who might prefer a pay‑as‑you‑go model instead.