RoameSIM eSIM Data Plans for Thailand

RoameSIM does not provide a truly unlimited high‑speed data eSIM for Thailand. The plans labeled “Unlimited” in the catalog give 3GB of high‑speed data per day; once that threshold is reached the speed drops to 1000kbps. Travelers can instead choose from fixed‑data plans, such as the 20GB plan valid for 30 days costing about $25, or the 100GB plan valid for 180 days costing about $125, which offer large data allowances without a speed cut‑off. These fixed plans may be more cost‑effective for users who expect to consume more data while maintaining consistent speeds.

RoameSIM offers Thailand eSIM plans that come with a phone number and SMS capability. The plans range from 1 GB for 7 days priced around $21.00 USD to 20 GB for 365 days costing about $124.60 USD. Each plan provides a US‑based phone number with dialing code +1, allowing inbound and outbound voice calls, and supports inbound and outbound SMS. Coverage is for Thailand and 164 additional countries, all available over 5G. If you need confirmation of the specific features or a local Thai number, please verify the details directly with RoameSIM.

RoameSIM provides 12 single‑country data plans that can be selected specifically for Thailand and an additional 34 multi‑country plans that include Thailand among their coverage areas. The plans range in price from about $2.40 to $208.60, while data caps vary from 200 MB up to 100 GB. The single‑country options are typically fixed‑data plans, meaning that the amount of data you purchase is predetermined and remains the same for the validity period. The multi‑country plans often use a daily data cap, which limits the amount of data available each day while still offering broader coverage across several countries.