Simfinity does not provide any eSIM plan with an unlimited data cap for Thailand. All plans that cover Thailand include a fixed data allowance: the Thailand plan is available with 20 GB or 10 GB for 30 days, and the regional Global, East Asia, and Asia Pacific passes offer 25 GB each with an unlimited validity period.
For travelers who need more data than the 20 GB option, choosing a fixed‑data plan can be more cost‑effective than subscribing to a higher‑priced plan that still limits the data usage. Simfinity’s fixed plans also include tethering, 5G and 4G coverage, and can be a practical choice unless the user requires an actual unlimited data allowance.