eSIM for South Korea
Kokio's South Korea plans start at $4.00 for 1 GB over 7 days on the best available local network. You buy without a passport, name or email, and install before you fly.
South Korea plans
(Prices and plans may have been updated since. Install the app to see the latest.)
| Data | Valid for | Price | Per GB | 5G |
|---|---|---|---|---|
| 1 GB | 7 days | $4.00 | $4.00 | Yes |
| 2 GB | 15 days | $7.00 | $3.50 | Yes |
| 3 GB | 30 days | $9.00 | $3.00 | Yes |
| 5 GB | 30 days | $11.00 | $2.20 | Yes |
| 10 GB | 30 days | $19.00 | $1.90 | Yes |
| 20 GB | 30 days | $30.00 | $1.50 | Yes |
| 50 GB | 30 days | $131.00 | $2.62 | Yes |
| 100 GB | 30 days | $178.50 | $1.79 | Yes |
| Unlimited | 3 days | $12.00 | – | Yes |
| Unlimited | 5 days | $20.00 | – | Yes |
| Unlimited | 7 days | $29.00 | – | Yes |
| Unlimited | 10 days | $35.00 | – | Yes |
| Unlimited | 15 days | $49.00 | – | Yes |
| Unlimited | 30 days | $69.00 | – | Yes |
Network and coverage
Your eSIM roams on whichever eligible local network gives the best signal: SK Telecom. Some plans include 5G where the network offers it.
Why Kokio for South Korea
Kokio asks for no ID at all: you sign in with a passkey, and we never collect your name or email.
Kokio plans connect by roaming, so there is no local SIM to register.
Pay by card, Apple Pay, Google Pay, PayPal, or crypto (USDC, USDT or DAI from a Kokio Wallet on Base, or other coins via MoonPay). The plan price is the same whichever way you pay, because Kokio covers the payment processing fees.
Tips for South Korea
- Kokio's South Korea plans run on SK Telecom, the country's largest network, so there is no network to pick by hand.
- Unlimited plans run for 3, 5, 7, 10, 15 or 30 days. A week in Seoul fits the 7-day plan.
- Going on to Japan or Taiwan? Each has its own Kokio plans, and your phone can hold more than one eSIM, so you can install the next one before you fly.
Setup
- Install the eSIM at home on Wi-Fi. It installs once only.
- Land at Incheon (ICN) or Gimpo (GMP).
- iPhone: Settings → Mobile Service → choose the Kokio line for mobile data, with data roaming on.
- Not connecting? Toggle Airplane Mode, then pick a network manually.
New to eSIMs? Read the eSIM guide for travellers.
FAQ
- Do I need my passport to buy a South Korea eSIM?
- No. Kokio asks for no passport, name or email. You sign in with a passkey on your phone.
- Does the South Korea eSIM include a Korean phone number?
- No. Kokio's South Korea plans are data-only, so calls and messages go through internet apps.
- Which network does the South Korea eSIM use?
- SK Telecom, with 5G where the network offers it.
- Is there an unlimited data plan for South Korea?
- Yes. Unlimited South Korea plans run for 3, 5, 7, 10, 15 or 30 days. The plan table shows the current prices.