GigSky does not provide an eSIM for Martinique that includes a local phone number or SMS capability; all available plans are data‑only.
Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict particular apps or VoIP services, so users should verify that the messaging or calling tools they rely on work in Martinique before purchasing a GigSky plan.