yaySIM does not offer a San Marino eSIM that comes with a local phone number or SMS capability. Travelers can only purchase a data‑only plan for San Marino fromyaySIM.
You can still communicate while abroad by using VoIP services such as WhatsApp, Telegram, or iMessage over the data connection. Some destinations, however, may block or restrict specific apps, so it is advisable to verify the accessibility of the apps you rely on in San Marino before purchasing a plan.