ZenSim eSIM Data Plans for South Korea

ZenSim does not provide a truly unlimited data eSIM for South Korea. All plans labeled “Unlimited” in the name have a data cap of 3 GB per day, after which the speed is reduced (though the specific throttled speed is not listed).

Instead, ZenSim offers fixed‑data alternatives that may be more economical unless you need a large amount of data. For instance, the South Korea 20 GB plan can be bought for 10 days at $29.00 USD or for 30 days at $30.00 USD. Another option is the 10 GB plan for 10 days at $18.00 USD. These plans give a fixed amount of high‑speed data without time‑based throttling.

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.