GulfData does not offer a true unlimited‑data eSIM for Czech Republic.
The plans that carry the name “Unlimited” give 1 GB of high‑speed data per day and, once that limit is reached, the connection is throttled to 512 kbps.
Travelers who need more data may choose a fixed data plan instead. For example, GulfData offers a 50 GB bundle for 180 days at a rate of $57.00 USD and a 20 GB bundle for 30 days at $19.00 USD, both of which provide high‑speed access throughout the validity period.