Jetpac does not provide a true unlimited data eSIM for the Czech Republic. The plans that carry “Unlimited” in their names give 3 GB per day and reduce the speed to 1024 kbps once that daily limit is reached, so the data usage is capped. For travelers who need high‑speed data without a daily cap, Jetpac offers fixed‑data options such as the Europe 40 GB plan for 30 days at $34.99 USD or the Europe 30 GB plan for 30 days at $29.99 USD, both covering the Czech Republic and giving unrestricted high‑speed data within their respective allowances. Using a fixed‑data plan can be more cost‑effective for heavy data users who want a clear limit rather than a reduced speed after a daily ceiling.