4S eSIM eSIM Data Plans for Thailand

4S eSIM does not offer a truly unlimited data plan for Thailand. The plans that carry the “Unlimited” name provide a fixed high‑speed allowance of 3GB/day, 5GB/day or 2GB/day, and after that amount is reached the speed is throttled to 1000kbps. Travelers who need higher data volumes can choose from several fixed‑data options, such as the 40GB plan that is valid for 365 days and costs $36.49, the 50GB plan that is valid for 180 days and costs $43.20, or the 20GB plan for 30 days at $11.07. These fixed‑data plans can be more cost‑effective for users who expect to consume large amounts of data.

4S eSIM does not provide Thailand eSIMs that include a phone number or SMS capability; only data‑only solutions are available. Travelers can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection for voice and messaging without needing a dedicated phone number.

4S eSIM provides 40 single‑country plans that can be used only in Thailand and 111 multi‑country plans that include Thailand among their destinations. Prices for these plans range from about $1.30 to $349.34, while the data caps vary from 100 MB up to 50 GB. Single‑country plans are fixed‑data packages that expire when the allotted data is used or after the validity period, whereas multi‑country plans allow the same data allowance to be shared across several countries as long as Thailand is covered.