JamboSim eSIM Data Plans for Saint Martin

JamboSim does not provide a true unlimited data eSIM for Saint Martin; none of its plans list an “unlimited” data cap. All options for the island are fixed‑data plans.

The largest fixed‑data plans include the eSIM JamboSim Global 20GB / 30 days for $40.99 USD and the smaller eSIM JamboSim Global 10GB / 30 days for $25.99 USD, each lasting 30 days. For short stays, JamboSim offers a “Unlimited” name plan of 3 GB per day for 3 – 15 days, after which high‑speed data is throttled to 1 Mbps. These alternatives provide a high‑speed data allowance without true unlimited usage.

JamboSim does not provide an eSIM for Saint Martin that includes a phone number or SMS capability; the plans offered are data‑only. Travelers who need messaging or voice functionality can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations restrict or block certain apps or VoIP services, so it is prudent to confirm that the services you rely on are accessible in Saint Martin before purchasing.

JamboSim offers a selection of data plans for Saint Martin that include nine single‑country options and eighteen multi‑country options. The catalogue spans a wide price range from about $1.99 to nearly $82 and data caps from 200 MB up to 20 GB. Customers can choose from both fixed data‑amount plans and plans that provide a daily data cap, which means some packages allocate a set amount of data for the entire validity, while others reset the data allowance each day.