Ovosim’s plans marketed with “Unlimited” in their names do not provide truly unlimited data for Poland. Each of those plans lists a specific data cap, such as the EUconnect Unlimited 3‑Day plan that gives 10GB/day for 3 days, or the EU 120 GB Unlimited Calls plan that offers 4GB/day for 30 days. After the stated amount is used, data speed is typically reduced (though the exact throttled speed is not specified in the features).
Instead, Ovosim offers fixed‑data plans that can be more suitable for travellers who need a sizable amount of high‑speed data. For example, the Half Global 120 GB Yearly plan supplies 123GB for 365 days, and the Europe 50 GB plan gives 51GB for 30 days, both of which provide a large data allowance and are generally more cost‑effective than the “Unlimited” named plans.