Bordersim does not offer an eSIM for San Marino that includes a local phone number or SMS capability. The only plans available for this destination are data‑only eSIMs with no telephony features.
Travelers who need to keep in touch can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection. However, some destinations may block or restrict access to certain apps or VoIP services, so it is advisable to confirm that the apps you rely on are available in San Marino before purchasing a Bordersim eSIM.