Truely provides a range of unlimited data eSIM plans that cover Vatican City. These plans are available for a variety of validity periods, from 1 day through 30 days, and the prices range from about $5.52 USD for a 1‑day plan up to roughly $74.93 USD for a 30‑day plan. All of these unlimited options support 3G, 4G and 5G connectivity, allow tethering, and include a note that speed may be throttled after heavy usage.
Because Truely’s unlimited plans are subject to a Fair Usage Policy, users whose traffic volume exceeds the typical threshold may experience reduced speeds. If speed restrictions are a concern, it is advisable to contact Truely directly to confirm whether the FUP applies to the chosen plan and to learn how much data is typically available at normal speed.