JamboSim eSIM Data Plans for Thailand

JamboSim does not provide a truly unlimited data eSIM for Thailand. The plans that carry “Unlimited” in their name actually offer a capped data allowance of 3GB per day; once that limit is reached, speed drops to 1000kbps.

Travelers who need larger data volumes can choose from a range of fixed‑data options. For example, JamboSim offers a 100GB plan valid for 180 days and a 50GB plan valid for 90 days, both with 5G connectivity. These fixed‑data plans can be more cost effective if a user anticipates needing a substantial download quota but does not require unlimited data.

JamboSim offers several eSIM plans that include a phone number for use while traveling in Thailand. The plans range from 1GB for 7 days at $11.99 USD to 20GB for 365 days at $105.99 USD. The phone numbers come with the dialing code +1, so the number is not a local Thai number but is usable for international outbound calls. Calls can be made from the eSIM, but inbound voice calls are not supported. SMS can be sent, but you cannot receive SMS messages on the number. The plans provide outbound voice and SMS capabilities and do not allow inbound voice or SMS. Travelers who need specific functionality are encouraged to confirm the details directly with JamboSim.

JamboSim offers 12 single‑country data plans and 33 multi‑country data plans for Thailand. The single‑country options are usable only in Thailand, while the multi‑country plans enable data usage in Thailand along with other destinations. The plans fall into two main types: daily data caps, where a set amount of data is reset each day, and fixed data caps, where a total data allowance is available for the entire validity period. Across all offerings, prices range from roughly $1.99 to $105.99, data caps span from 200 MB up to 100 GB, and validity extends from 3 days to 365 days.