Flysimio does not provide a truly unlimited data eSIM for Vatican City. The plan named Vatican City Unlimited is a fixed data plan that offers 2GB of high‑speed data per day for a 7‑day validity period, so the data is capped and the speed is reduced after the daily allowance is used.
Instead, Flysimio offers several fixed data plans that give larger data allowances. For example, the Vatican City 20GB 30‑day plan and the Vatican City 10GB 30‑day plan provide 20GB and 10GB of high‑speed data respectively for 30 days, while the Europe (35 areas) 50GB 90‑day plan gives 50GB of data for 90 days. These fixed data plans are available on 5G networks in Vatican City and can be more cost‑effective for travelers who need a substantial amount of data.