ETravelSim does not provide any unlimited‑data eSIM plans for Saint Lucia. Their available offerings for the island are all fixed‑data packages. For example, a 20 GB package lasts 30 days and costs $99.99 USD, while a 10 GB plan is priced at $56.99 USD for the same validity period. Smaller packages, such as 5 GB for $28.99 USD and 3 GB for $21.99 USD, are also offered for 30 days.
Choosing a fixed data plan can be more cost‑effective for most travelers unless you are an extremely heavy data user who would need an unlimited option. The examples above represent only a subset of the available plans and not the full list of options.