San Marino eSIM Plans

eSIM San Marino: Instant 5G/4G for San Marino City & Monte Titano

Welcome to the Most Serene Republic of San Marino, one of the world's oldest and smallest republics. Whether you're climbing Monte Titano to see the Three Towers (Guaita, Cesta) or exploring the medieval streets of San Marino City (Città di San Marino), a reliable connection is essential.

Stay connected in this unique microstate with Cellesim's San Marino eSIM plans, starting at just $6.43. Choose from 19 limited and 16 unlimited plans.

CRITICAL: Avoid the San Marino "Roaming Trap"

IMPORTANT WARNING: San Marino is NOT a member of the European Union (EU) or the EEA.

This is a classic "roaming trap." Many tourists drive or take a bus from nearby Rimini, Italy, assuming their EU roaming plan (or even their home carrier's "Europe" plan) will cover them. It will not. As soon as your phone connects to a Sammarinese network, you will be charged extreme "Rest of World" or "pay-as-you-go" roaming fees, which can be astronomical.

A San Marino eSIM is the only smart way to get affordable data. Activate it before you arrive (e.g., at Rimini Airport - RMI) and you'll be connected the moment you cross the border.

Why a Cellesim eSIM is Essential for Your Trip

• Avoid Extreme Roaming Fees: Our plans are a fraction of the cost of "per-MB" roaming charges. Know your costs upfront.
• Instant Connection: Get online the moment you arrive. Don't waste time searching for a physical SIM for a one-day trip.
• Keep Your Home Number: Your eSIM handles the data, so your primary SIM (and your WhatsApp number) remains active for important calls and texts.
• Reliable 5G/4G Speed: We partner with top-tier local operators to provide the best 5G/4G connection available on Monte Titano.

Explore San Marino's Sights, Always Connected

1. San Marino City (Città di San Marino)

The UNESCO World Heritage capital. A San Marino City eSIM is essential for using maps to navigate the winding cobblestone streets, checking museum hours, and sharing stunning panoramic photos.

2. Monte Titano & The Three Towers

Hike the path between the famous towers (Guaita, Cesta, and Montale). Your connection ensures you can use digital guides and stay in touch.

Popular San Marino eSIM Data Plans ($)

A selection of our 19 most popular high-speed data plans:

• 1 GB (1 Day): $6.43
• 1 GB (7 Days): $6.72
• 2 GB (3 Days): $11.31
• 3 GB (7 Days): $16.76
• 3 GB (15 Days): $17.51
• 5 GB (30 Days): $28.87
• 10 GB (30 Days): $54.84
• 20 GB (30 Days): $104.63
• 50 GB (60 Days): $259.54

Need Unlimited Data for Your Stay?

For professionals, digital nomads, or anyone who wants total peace of mind, we offer 16 different San Marino Unlimited Data eSIM plans.

3 Easy Steps: Get Ready Before Your Trip from Italy

1. Purchase: Choose the San Marino mobile data plan that fits your trip (even if it's just for one day).
2. Scan QR Code: You'll instantly receive a QR code via email. Scan it from your phone's "Add eSIM" menu (CRITICAL: Do this before you leave your hotel in Italy, while you have Wi-Fi).
3. Activate on Arrival: When you cross the border into San Marino, simply switch your mobile data line to Cellesim. You're instantly online.