Simsima eSIM Data Plans for Thailand

Simsima does not provide a truly unlimited high‑speed eSIM plan for Thailand. Their “Unlimited – X days” packages give a daily allowance of 5GB or 3GB of data, after which the speed is reduced to 1 Mbps (1000kbps).

If a tourist seeks a larger amount of data, Simsima offers fixed data plans. For example, a 50GB plan that lasts 7 days or a 100GB plan valid for 180 days give travelers a substantial amount of high‑speed data before the plan expires. These options may be more cost‑effective for most users than a “limited‑speed” daily plan.

Simsima does not provide a Thailand eSIM that includes a phone number or SMS capability. Only data‑only plans are offered for travelers heading to Thailand.

Travelers can still use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, but some destinations may block or restrict these services, so it is advisable to verify that the apps you rely on are accessible in Thailand before purchasing a plan.

Simsima offers 15 single‑country plans and 22 multi‑country plans for Thailand. The available plans span a price range from roughly $1.50 to $87.22 and data caps from 100 MB up to 100 GB, with validity periods between 5 and 365 days. Some plans feature a daily data cap while others provide a fixed data amount, and a few include a reduced speed option of 1000 kbps.