ZenSim eSIM Data Plans for Thailand

ZenSim does not provide a truly unlimited high‑speed data eSIM for Thailand. Plans that carry the word “Unlimited” give 3 GB per day; once that daily allowance is reached the connection speed is reduced, and a fixed data cap remains.

Travelers who need more data can choose from ZenSim’s fixed‑data plans. For example, a 20 GB plan for 10 days costs $29, a 20 GB plan for 30 days costs $32, and a 10 GB plan for 10 days costs $20. These examples illustrate the range of large‑data options available; the full list offers additional possibilities, and a fixed‑data plan may be more economical unless the user is an extremely heavy data consumer.

ZenSim does not provide a Thailand eSIM that includes a separate phone number or SMS capability. Only data‑only eSIMs are offered for Thailand, and voice or text services can be accessed through VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. This means that travelers cannot receive or send SMS directly from a local Thai number when using ZenSim.

ZenSim offers eight single‑country plans and eight multi‑country plans in Thailand. Across all plans the data caps range from 3 GB to 20 GB, the prices continue from $13 to $70, and validity periods span 10 to 30 days. Some plans feature a fixed data amount while four provide a daily data cap, and all included plans allow tethering.