ZenSim does not provide a truly unlimited data eSIM for Monaco. The only plan that carries “Unlimited” in its name, Monaco Unlimited STANDARD – 5 Days, actually offers 3 GB per day and throttles the speed to 1000 kbps once the daily quota is reached.
Instead, ZenSim offers several fixed‑data plans for Monaco. Examples include 10 GB for 15 days or for 30 days and 5 GB for 5 days, 15 days, or 30 days. These plans give a set amount of high‑speed data that must be used within the specified validity window. Choosing a fixed data plan can be more cost‑effective unless a traveler is an extremely heavy data user.