eSIMsData does not provide a true unlimited data eSIM for Southeast Asia. All of the plans listed for the region include a fixed daily high‑speed allowance—1GB/day for the “Essential” options and 2GB/day for the “Plus” options—after which the network speed drops to a reduced level (1250 kbps or 2000 kbps). Because “Unlimited” appears in the plan names, it is only a marketing label; the actual data cap is specified in the columns.
Instead, eSIMsData offers several large fixed‑data plans that can serve heavy users. For example, the Asia 100GB 90‑day plan, the Asia 100GB 180‑day plan, and the Asia 100GB 30‑day plan provide 100GB of high‑speed data with validity periods of 90, 180, and 30 days respectively. These plans are more cost‑effective for travelers who need large amounts of data, while the daily “Unlimited” plans provide a high daily allowance at a discounted rate, though they throttle speed once the daily quota is reached.