nextSIM eSIM Data Plans for Thailand

nextSIM does not provide a true unlimited data eSIM for Thailand. Plans that carry “Unlimited” in their name actually contain a fixed amount of high‑speed data, such as 1 GB per day or 2 GB per day, and after that limit is reached the speed is throttled to 512 kbps or 2000 kbps.

Users who need more data without speed reductions can choose from nextSIM’s fixed data plans. For example, the eSIM Thailand 50GB 30Days Economy plan gives 50 GB for 30 days, and the eSIM Thailand 20GB 30Days Economy plan offers 20 GB over the same period. These fixed‑data options can be a more cost‑effective choice, especially for travelers who are heavy data users.

nextSIM does not provide a Thailand eSIM that includes a phone number or SMS capability. All Thailand plans from nextSIM are data‑only and do not support inbound or outbound voice or text services.

Travelers who need messaging or calling functionality can use VoIP applications such as WhatsApp, Telegram, or iMessage, which operate over the data connection provided by the eSIM.

nextSIM offers 31 single‑country plans that are valid only in Thailand and 35 multi‑country plans that include Thailand as part of their coverage. The plans vary widely in price, from roughly $1.69 to $1,287.28 USD, and in data allowance, ranging from 1 GB to 50 GB. Validity periods span 1 to 30 days. Some plans give a fixed amount of data for the entire validity period, while others apply a daily data cap to manage usage.