eSIM Firsty pour French Antilles en 2026

Firsty has not published which operators it uses in French Antilles, so the radio side is unknown rather than bad; its traffic breakout is not stated either. The table above therefore contains the practical details available to check, while the listed technology reaches up to 5G—a ceiling, not a promise on every street or handset. With a large range of plans, sizing is the real decision, and the risk is buying more data than a fortnight needs. Top-up is stated as available, so an exhausted plan can be extended rather than immediately rebought.