eSIM.sm does not currently offer an unlimitedโdata eSIM plan for South Korea. All of its South Korean eSIMs have a fixed data allowance, with the largest available plans being 20GB for 30 days (USโฏ$34.50) and 10GB for 30 days (USโฏ$18.40). These plans allow tethering and are available for the full 30โday validity period. For travelers who need a large amount of data but do not require unlimited usage, a fixedโdata plan from eSIM.sm can be a more costโeffective choice unless the user intends to consume an extremely high volume of data.