Driffle eSIM does not provide a true unlimited data plan for South Korea. All of the plans listed for the country have a fixed data allowance, such as 1 GB per day for the shortest plans or larger caps like 100 GB for 30 days, 50 GB for 30 days, or 20 GB for 30 days. Plans that include “Unlimited” in their name actually offer the fixed daily or total data caps listed and do not grant unlimited high‑speed access; after the cap is reached the speed would be throttled, although a specific reduced speed is not documented.
Choosing a fixed data plan can be more cost‑effective unless a traveler expects to use very large amounts of data. For example, the 100 GB plan for 30 days ($176.00 USD) and the 20 GB plan for 30 days ($46.00 USD) are two options that provide higher data limits while keeping the validity period at one month.