Lotso Travel does not provide a true unlimited data eSIM for South Korea. All of the plans listed for South Korea have a hard data cap; the “Unlimited” label in the plan name refers to the fact that data usage continues after the cap is reached, but the speed is throttled to a low rate (for example, the South Korea 10GB Unlimited eSIM · 5 days plan offers 2GB/day at full speed and then unlimited data at 128 kbps).
Travelers who need a larger, predictable data allowance can choose one of Lotso Travel’s fixed‑data plans. For instance, the South Korea 50GB eSIM is available for 5, 10, 15, or 30 days, providing a consistent 50 GB of high‑speed data for the chosen validity period. These fixed plans can be more cost‑effective for users who anticipate heavy data usage during their stay.