eSimfly does not provide a truly unlimited data eSIM for Sri Lanka. The plans that carry “Unlimited” in their name actually give 3 GB per day and, once that amount is reached, the speed is reduced to 1000 kbps.
Travelers who need a larger, unthrottled data allowance can choose from eSimfly’s fixed data plans. Examples include the Asia 100 GB 180 days plan, the Asia 50 GB 90 days plan, and the Asia 50 GB 30 days plan, all of which offer a set amount of high‑speed data without a speed reduction after a limit is reached. These fixed data plans may be more cost‑effective for users who consume a lot of data.