nextSIM eSIM Data Plans for South Korea

nextSIM does not offer a truly unlimited data eSIM for South Korea. All South‑Korean plans in the catalog have a data cap, ranging from 1 GB per day up to 2 GB per day for the “Unlimited Plus” lines, and they include a reduced speed once the allocated data is reached.

Travelers who need more than the daily limits can choose fixed‑data plans instead. For example, nextSIM offers a 100 GB eSIM valid for 30 days and a 50 GB eSIM also valid for 30 days. These plans provide a larger, non‑limited data allowance for 3G, 4G, and 5G networks in South Korea, and their pricing and validity are listed in the same catalogue.

nextSIM does not provide a South Korea eSIM plan that includes a phone number or SMS capability.
Only data‑only eSIM plans are offered for South Korea, and travelers can use VoIP applications such as WhatsApp, Telegram, and iMessage over a data connection to make calls and send messages.

nextSIM offers 30 single‑country plans that can be used in South Korea and 68 multi‑country plans that include South Korea. Their prices run from about $3.80 to $1, 283.31, while data caps span from 1 GB to 100 GB. Plans are sold either with a fixed data amount or with a daily data cap, allowing travelers to choose between a set total of data or a limit that refreshes each day. The single‑country selections give dedicated coverage for South Korea, whereas the multi‑country options combine South Korea with other destinations.