South Korea eSIM Data Plans

e-sim.tw offers the cheapest eSIM data for South Korea. The most affordable network is KT at $1.24/GB. You pay only for the data you use with no contracts or expiration dates.

Most travelers use 1–3 GB per week for messaging, maps, and social media. Heavy users streaming video may need 5–10 GB. With e-sim.tw’s pay-as-you-go pricing in South Korea, you never overpay — just top up your wallet and use what you need.

Yes! We recommend installing your eSIM before your trip while on Wi-Fi. Once you land in South Korea, simply enable data roaming and your eSIM connects to a local network automatically. No waiting, no activation required.

e-sim.tw connects to 3 networks in South Korea: KT, SK Telecom, LG Telecom. You get the same 4G/5G speeds as local customers, with rates starting at $1.24/GB.

Simply log into your e-sim.tw account and add funds starting from $5. Your balance works in South Korea and 200+ other countries — one wallet, one eSIM, worldwide coverage. Top up any amount from $5, and your balance never expires.