eSimfly does not provide a truly unlimited data eSIM for South Korea. The plans that carry the word “Unlimited” in their name actually give 3GB of high‑speed data per day and then reduce the speed to 1000kbps once that daily limit is reached.
Travelers who need a larger, non‑throttled data allowance can choose from eSimfly’s fixed data plans. Examples include the Global 100GB 31 days plan, the Asia 100GB 180 days plan, the Asia 50GB 90 days plan, and the Asia 50GB 30 days plan. These plans offer a fixed amount of data that can be used at full speed for the specified validity period.