nextSIM eSIM Data Plans for South Korea

nextSIM does not provide a truly unlimited high‑speed data plan for South Korea. The plans that carry the word “Unlimited” actually include a fixed data cap—typically 1 GB per day or 1 GB total—with a reduced speed once the limit is reached.

Travelers who need more data can choose one of nextSIM’s fixed data plans, such as the 100 GB 30 days plan or the 50 GB 30 days plan, both of which offer a larger, unrestricted data allowance for a fixed validity period. These options are available to users traveling in South Korea.

nextSIM does not provide South Korea eSIMs that include a phone number or SMS capability. The plans it offers for South Korea are data‑only, so travelers will not receive a local South Korean number with voice or text services.

Customers who need phone or text functionality can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but this may depend on local restrictions. It is advisable to confirm that the specific apps you rely on are accessible in South Korea before purchasing an eSIM from nextSIM.

nextSIM provides 31 single‑country plans for South Korea and 75 multi‑country plans that include South Korea. The available plans vary widely. Prices across all offers range from approximately $3.84 to $1, 278.53, while data caps span from 1 GB up to 100 GB. Some plans are fixed‑data, giving a set amount of data for the validity period, whereas others use a daily data cap, limiting the data available each day. The validity length of these plans also ranges from one day to ninety days, allowing travellers to choose a duration that fits their trip.