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 provides a variety of data plans for South Korea that include both single‑country and multi‑country options. Within each category there are nine distinct plans. The plans cover a price range from about US$17 to US$70 and offer data caps between 3 GB and 40 GB, with validity periods from 10 up to 30 days. Some plans use a fixed data amount that lasts for the full validity period, while others cap usage on a daily basis, meaning the data allowance is refreshed each day. Tethering is permitted on selected plans.