While the concept of a truly "free" data eSIM for San Marino is rare, with no providers offering them as standard, some innovative options exist for travelers. Roamless, for example, offers data in San Marino and operates on a "pay-as-you-go" model where you only pay for the data you use. This can result in significant savings compared to traditional bundles if your data consumption is minimal.
For most visitors, especially given San Marino's compact size and easy access to Wi-Fi in many establishments, a small, affordable **San Marino eSIM** plan or a regional eSIM covering Italy (which often includes San Marino) will provide reliable connectivity without the need for a completely free option. Consider your data needs carefully, as exceeding a truly free allowance would inevitably incur charges.