Vatican City is the world's smallest country, and almost every visitor arrives on foot from Rome. There is no separate Vatican mobile network: Italian operators cover the city-state, and co:sim's Vatican City eSIM uses those same networks (TIM, WindTre and Iliad, with 5G listed). Public Wi-Fi for visitors is very limited, and you will often need data for timed museum tickets, audio guides and finding your group in St. Peter's Square. This guide covers whether you need a Vatican-specific plan, the options, and the places where signal drops out.
For most people the Vatican is part of a Rome trip, so the real question is how your Rome data handles it.
EU or EEA phone plan: the Vatican is not in the EU, but your phone will almost always be on an Italian network there, which is covered by EU roaming. Check your carrier's terms if you want certainty.
UK, US, Asian or other plan: you pay international roaming unless you have a travel eSIM. Buy a plan that covers both Italy and the Vatican.
Already have co:sim Italy data? An Italy-only plan lists Italy as its coverage. Because the Vatican is served by Italian towers it will usually work in practice, but only a plan that explicitly includes Vatican City guarantees it.
The Vatican City eSIM lists TIM, WindTre and Iliad (5G). At the time of writing (October 2026):
Plan type
Options
From
Daily plans
1GB, 2GB, 3GB, 5GB or 10GB of high-speed data per day
$1.99 per day
Fixed data
1GB for 7 days, then 3GB, 5GB, 10GB or 20GB for 30 days
$1.99 (1GB / 7 days)
For a Rome-plus-Vatican trip, the Europe (35 areas) plan covers Italy, Vatican City and San Marino together, which is usually the simplest choice. Validity starts at first connection, and you have 90 days to install after purchase.
St. Peter's Basilica and the colonnade in Vatican City
A half-day visit with maps, ticket apps and photos typically uses well under 1GB.
The Vatican is one of the busiest sites in Europe, so the connectivity plan is simple: install data before you arrive, save your tickets offline, and expect the signal to fade once you go inside.
co:sim Team
