JamboSim eSIM Data Plans for Thailand

JamboSim does not provide a truly unlimited eSIM plan for Thailand. The plans branded “Unlimited” give 3GB of high‑speed data per day, after which the speed is throttled to about 1 Mbps. If a traveler needs more data, they can choose one of JamboSim’s fixed‑data options, such as the 30‑day Thailand plan that offers 3GB per day for $37.99 USD or the 90‑day 50GB plan for $37.99 USD. These fixed plans provide a clear data allowance and can be more cost effective for most users.

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.