eSIMCard does not provide a truly unlimited high‑speed data eSIM for Thailand. All plans that carry the word “Unlimited” in their name actually give a capped amount of high‑speed data, for example 1GB per day, and after that the speed is throttled to 500 kbps or 512 kbps; higher “Unlimited Plus” plans offer 2 GB per day and are throttled to 2000 kbps once the limit is reached.
Travelers who need higher data volumes can choose one of eSIMCard’s fixed‑data plans that come with a large data allowance. For instance, the 100 GB eSIM for 180 days (unthrottled) or the 50 GB eSIM for 90 days (unthrottled) are suitable for heavy data use and may be more cost effective for long stays in Thailand.