nextSIM eSIM Data Plans for South Korea

nextSIM does not provide a true unlimited data eSIM for South Korea. All plans that carry “Unlimited” in the name actually include a fixed data allowance of 1GB per day or 2GB per day, and once the limit is reached the speed is reduced to 512kbps or 2, 000kbps.

For travelers who need a larger data budget, nextSIM offers fixed‑data plans such as the 100GB 30Days Standard plan priced at $149.11 USD and the 50GB 30Days Standard plan priced at $84.21 USD. These options give large high‑speed data allowances without the throttling that applies to the so‑called unlimited plans.

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 35 single‑country data plans and 69 multi‑country plans that include South Korea. Plan prices range from about $3.99 to $1, 292.14, while data caps vary from 1 GB to 100 GB. The catalogue contains both fixed‑data options, which provide a set amount of data for the validity period, and daily‑cap options, where the data allotment resets each day; nextSIM lists 66 fixed‑data plans and 38 daily‑cap plans in total.