RedSim eSIM Data Plans for South Korea

RedSim does not provide a truly unlimited data eSIM for South Korea. The plans that carry the name “Unlimited” give high‑speed data for up to 3GB each day and then throttle the speed to 1 Mbps for the rest of the day, so the data are not unlimited.

Travelers who need a larger data allowance can choose fixed‑data plans instead. For example, a 50GB plan is available for 30 days at $57.55 USD, and a 20GB plan is also offered for 30 days at $23.71 USD. These fixed plans may be more cost‑effective for most users unless the traveler expects very heavy data use.

RedSim does not provide an eSIM plan for South Korea that includes a phone number or SMS capability. The provider offers only data‑only eSIMs for that country. Travelers who rely on voice or text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but they should verify that these services are accessible in South Korea before purchasing, as some destinations may block or restrict specific apps or VoIP services.

RedSim provides 37 single‑country data plans for South Korea and 17 multi‑country bundles that include the country. Prices range from $2.05 to $284.70 and data caps vary from 1 GB up to 50 GB, with validity periods between 1 and 60 days. Within this selection the provider offers both fixed‑data‑cap plans, which give the buyer a set amount of data for the entire validity period, and daily data‑cap plans, which allocate a specified amount of data each day.