eSIMX does not provide an unlimited data eSIM for China. The provider’s catalog contains only fixed data plans with set data caps and validity periods. For travelers who need a large amount of data, eSIMX offers several high‑cap options, such as the China Mainland 20GB 30Days plan, the Global 100GB 30Days With Calls plan, and the Global 50GB 30Days With Calls plan. These fixed data plans can be more cost‑effective for most users, unless the traveler is an extremely heavy data consumer who would benefit from a truly unlimited plan.