ZenSim eSIM Data Plans for South Korea

ZenSim does not offer a truly unlimited data eSIM for South Korea. The plans that carry the “Unlimited” name actually provide a 3GB/day allowance, after which the speed is reduced (the reduced speed is not specified in the data). These plans are not high‑speed data without limits.

Travelers who need a larger total data allowance may consider ZenSim’s fixed‑data plans, such as the 20GB plans available for 10 days or 30 days, or the 10GB plan for 10 days. These fixed‑data options can be more cost‑effective for most users unless they require high‑speed data every day.

ZenSim does not provide a South Korea eSIM that includes a phone number or SMS capability. The only South Korea eSIMs offered by ZenSim are data‑only plans. Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection.

ZenSim offers a total of 16 distinct plans for South Korea, split evenly between single‑country and multi‑country options. Eight of these plans provide coverage only within South Korea, while the other eight cover South Korea along with other destinations in a multi‑country package.

The plans vary in data structure: four are daily‑data‑cap plans that reset each day, and the remaining twelve are fixed‑data‑cap plans with a set amount of data for the plan’s entire validity period.

Prices for the South Korea plans range from about $17 to $70, data caps run from 3 GB to 20 GB, and validity spans 10 to 30 days. Some of the plans also allow tethering to other devices.