Airdatalink does not provide any unlimited data eSIM plan for the Czech Republic. All of the plans listed for that country are fixed‑data bundles with 50 GB of high‑speed data that must be used within a specified validity period, such as 30 days or 15 days, depending on the plan.
Users who need a large data allowance can choose one of these fixed‑data options. For example, the “Essential Europe eSIM — 50 GB · 30 days” includes 50 GB of data valid for 30 days, and the “Discover Europe eSIM — 50 GB · 30 days” offers the same data volume and validity. These plans are usable on 5G where available and are typically more cost‑effective for most travelers unless the user is an extremely heavy data consumer.