eSIMX currently offers only data‑only eSIM plans for Saint Barthélemy, and there is no option that includes a local phone number or SMS capability.
Travelers can still use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection to make calls and send messages. However, they should verify that these services are accessible in Saint Barthélemy before purchasing, as some destinations may restrict specific apps or VoIP services.