RoameSIM eSIM Data Plans for South Korea

RoameSIM does not provide a truly unlimited high‑speed data eSIM for South Korea. The plans that carry “Unlimited” in their names offer a fixed allowance of 3GB of data per day; after that amount the speed is throttled to 1Mbps.

For travelers who need more data, RoameSIM offers fixed‑data plans such as 50GB for 30 days and 100GB for 180 days, both of which provide generous high‑speed data usage over the given validity period.

RoameSIM does not provide eSIM plans for South Korea that include a phone number or SMS capability. Travelers can only purchase data‑only eSIMs from RoameSIM for use in South Korea. For voice and messaging, users can rely on VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, though availability of these apps should be verified for the destination before purchasing.

RoameSIM lists 12 single‑country plans for South Korea and 30 multi‑country plans that include South Korea. The offerings cover a price range from about $4.69 to $182.81 and data caps from 1 GB up to 100 GB. The single‑country plans are fixed‑data packages, while the multi‑country options also include daily‑cap plans that allow a set amount of data each day for the duration of the validity period. This varies in validity from 3 days up to a full year.