MobileSIM eSIM Data Plans for South Korea

MobileSIM does not offer a truly unlimited data eSIM for South Korea. The plans labeled “Unlimited” provide 3GB per day, after which the data speed is reduced to 1000kbps. Because the data cap is still present, these plans are not unlimited in the sense of offering high‑speed data without limits.

Travelers who need a larger continuous data allowance may choose from fixed‑data options. For example, a plan with 20GB for 30 days is available at $32.00 USD, and a larger 100GB plan for 180 days can be purchased for $185.00 USD. These alternatives offer higher total data allowances and can be more cost‑effective for heavy data users.

MobileSIM does not provide eSIM plans for South Korea that include a phone number or SMS capability. Their South Korea offerings are data‑only, so you can use the data allowance for internet access, but calls and text messages must be made through data‑based VoIP apps such as WhatsApp, Telegram, or iMessage.

MobileSIM provides 12 single‑country data plans and 14 multi‑country data plans that cover South Korea. The plans vary from daily capped data options to fixed‑amount data packages, allowing travelers to choose between short‑term daily limits and longer‑term unlimited‑like packages. Prices for the South Korea‑specific plans range from roughly $4.50 to $185, and data caps span from 1 GB up to 100 GB, with validity periods that can be as short as 3 days or as long as a full year.