eSimfly eSIM Data Plans for South Korea

eSimfly does not provide a truly unlimited high‑speed data plan for South Korea. Every plan that carries the word “Unlimited” in its name actually limits the data to 3GB per day and slows the connection to 1000kbps after that threshold is reached.
For travelers who need more data, eSimfly sells fixed‑data plans such as the 100GB plan valid for 31 days or the 50GB plan for 30 days. These larger bundles give a high‑speed allowance that must be used within the specified validity period, and they can be more cost‑effective than the daily‑limited “Unlimited” options for heavy data users.

eSimfly does not provide South Korea eSIM plans that include a phone number or SMS capability. Only data‑only eSIM options are offered for this destination.

Travelers who need voice and text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection, but access to these services may be limited or blocked in South Korea. It is advisable to confirm that the apps you rely on will function before purchasing an eSimfly plan.

eSimfly offers 12 single‑country plans and 54 multi‑country plans that include South Korea, resulting in 66 distinct data options. Prices for these plans range from roughly $2.33 to $121.38, while data caps vary from 1 GB to 100 GB and validity periods span from 3 days to a full year. Some plans provide a fixed data allotment, whereas others impose a daily data limit; a number of offerings also allow tethering, and a few reduce speed after 1 000 MB of data is used.