RedSim does not provide a true unlimited data eSIM for Thailand. Plans with “Unlimited” in the name, such as Thailand Unlimited 3 Days or Thailand Unlimited 30 Days, supply up to 5GB of high‑speed data per day and then throttle to 1 Mbps for the remainder of the day; the data cap is a fixed limit, not an unlimited allocation.
If a traveler needs a large amount of data, RedSim offers fixed data plans like the Thailand 50GB 30 Days plan or the Thailand 20GB 30 Days plan, which provide a set data allowance over a 30‑day validity span. These options may be more cost‑effective for users who do not require an unlimited daily data threshold.