TailSim eSIM Data Plans for South Korea

TailSim does not provide a truly unlimited high‑speed data eSIM for South Korea. The plans that carry the “Unlimited” name give a data allowance of 3GB per day, after which the speed is throttled to 1000 kbps.

For travelers who need larger amounts of high‑speed data, TailSim offers fixed data plans such as the 50GB plan valid for 30 days at $54.99 USD or the 20GB plan also valid for 30 days at $26.99 USD. These plans provide a fixed high‑speed data allowance during their validity period without speed throttling.

TailSim does not offer an eSIM for South Korea that includes a phone number or SMS capability. All of the South Korea eSIMs available from TailSim are data‑only plans. Travelers can still use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection for calls and messaging. Users should confirm that these apps are accessible in South Korea before purchasing, as some destinations may restrict certain services.

TailSim offers 14 single‑country data plans for South Korea, with no multi‑country options available. Of those, 8 plans provide a daily data cap, allowing a set amount of data each day, while 6 plans are fixed data caps that give a total amount of data usable during the validity period. Prices across the offerings range from about $3.99 to $82.50, and data caps vary from 1 GB up to 50 GB.