nextSIM eSIM Data Plans for South Korea

nextSIM does not provide a truly unlimited data eSIM for South Korea. All of its plans list a specific data cap, ranging from 1 GB per day to 100 GB for a month, and include a reduced speed threshold (for example, after 1 GB the speed drops to 512 kbps). Plans that contain “Unlimited” in the name are actually capped plans that throttle speed once the limit is reached. If a large, fixed‑data plan is preferred, nextSIM offers a 100 GB 30‑day option for $193.08 or a 50 GB 30‑day option for $113.86, which can be more cost effective for heavy users than purchasing successive capped daily plans.

nextSIM does not offer an eSIM that assigns a South Korea phone number or supports SMS. The only plans available for South Korea from nextSIM are data‑only eSIMs. Travelers who need voice or text communication can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

NextSIM provides a diverse selection of plans for South Korea, with 26 single‑country options and 40 multi‑country options available. These plans cover a price range from $3.92 to $1,282.64, a data cap range from 1 GB to 100 GB, and validity periods of 1 to 30 days. For customers preferring predictable usage, daily data cap plans offer a fixed amount of data that can be consumed each day, while fixed data cap plans give a total amount of data to be used during the entire validity period. Both types of plans are available, allowing travelers to choose the structure that best matches their travel needs.