Roambit does not provide an eSIM for Martinique that includes a phone number or SMS capability. The available plans are data‑only, so travelers will not receive a local number for voice calls or text messages.
Users can still communicate over the data connection by using VoIP applications such as WhatsApp, Telegram, or iMessage. However, some destinations may block or restrict certain apps or VoIP services, so it is advisable to confirm that the messaging or calling apps you rely on are accessible in Martinique before purchasing a Roambit eSIM.