MobileSIM eSIM Data Plans for South Korea

MobileSIM does not provide a true unlimited data eSIM for South Korea. All plans that are marketed with the word “Unlimited” actually cap the data at 3 GB per day; after that limit is reached, the speed is throttled to 1000 kbps.

If a traveler needs a large amount of high‑speed data without a daily cap, MobileSIM offers fixed‑data plans. For example, the Asia 100 GB plan is valid for 180 days and costs $185.00 USD, while the South Korea 20 GB plan is valid for 30 days for $32.00 USD. These fixed‑data options are often more cost‑effective for heavy data users than the capped “Unlimited” plans.

MobileSIM does not provide an eSIM that includes a local phone number or SMS capability for South Korea. The provider offers only data‑only plans, so travelers using a MobileSIM eSIM in South Korea will need to rely on internet‑based applications—such as WhatsApp, Telegram, or iMessage—to make calls and send messages.

MobileSIM lists 12 single‑country and 15 multi‑country data plans for South Korea. The plans cover a price range of about $1.50 to $185 and data caps from 200 MB to 100 GB. Among the offerings, fixed‑data plans provide a set amount of data that can be used over the validity period, while daily‑cap plans give a smaller data allotment that resets each day.