Saily does not provide a true unlimited data eSIM for the Czech Republic. The plans that include “UNLIMITED” in their names actually offer a fixed daily data amount or a monthly allotment that, once exhausted, triggers a reduced speed. For example, the “Czech Republic UNLIMITED 10 days” plan provides 5 GB per day for 10 days, after which the data rate drops to 1000 kbps. A similar 30‑day option is “Czech Republic UNLIMITED 30 days, ” which again limits the high‑speed data to 5 GB per day before throttling occurs.
If high‑volume data is needed, travelers can choose a fixed‑data plan such as “Czech Republic 20GB 30 days, ” which offers a 20 GB allowance for 30 days, or consider the more expansive “Europe 50GB 90 days” plan that covers the Czech Republic for 90 days with a 50 GB data cap. These fixed data plans can be a cost‑effective alternative for users who expect to consume large amounts of data but do not require unlimited usage without any limits.