RoameSIM eSIM Data Plans for Thailand

RoameSIM does not provide a truly unlimited data eSIM for Thailand. The plans that carry “Unlimited” in their name give 3GB of high‑speed data per day; once that 3GB is used the speed drops to 1 Mbps.

Travelers who need more data can choose RoameSIM’s fixed data plans, such as the 50GB plan valid for 90 days or the 100GB plan valid for 180 days. These plans offer a larger, fixed data allowance and may be more cost‑effective for most users.

RoameSIM does not provide a Thailand eSIM that includes a local phone number or SMS capability. The provider offers only data‑only plans for Thailand. Travelers who need voice or text services can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but they should verify that these apps are accessible in Thailand before purchasing, as some destinations may block or restrict certain services.

RoameSIM offers 35 distinct data plans for Thailand, comprising both single‑country and multi‑country options: 12 single‑country plans and 23 multi‑country plans. The plans span a price range from $4.69 to $182.81 and provide data caps between 1 GB and 100 GB for validity periods of 3 to 365 days. RoameSIM distinguishes between daily data cap plans and fixed data cap plans; daily caps reset every 24 hours, while fixed caps remain consistent throughout the validity period. Tethering is allowed on many plans, though speed may be reduced after the first 1000 MB.