🇰🇷 South Korea
Seoul eSIM
Land in Seoul, scan a QR, and you're online on a local network in seconds. No daily roaming fee, no surprise bill. $1.40 per GB.
Data in Seoul
In Seoul the eSIM rides KT and SK Telecom with 5G typically available - the same towers local subscribers use, selected automatically by signal strength. City centers, transit, and airports are the strongest coverage any network offers, so this is the easy case. Some of the fastest mobile data on Earth, underground metro included. No practical coverage gaps.
Pricing is South Korea's flat rate of $1.40/GB, metered per MB from a prepaid USD balance. A city break runs light: maps, ride-hailing, translation, and messaging together use well under 500 MB a day for most travelers, so $10 (≈ 7.1 GB) commonly outlasts the trip - and whatever's left keeps working in the next city, or next year.
Arrival checklist
- 1. Install the eSIM on Wi-Fi before you fly (QR or one-tap iPhone install).
- 2. Turn Data Roaming ON for the Anon eSIM line; leave it off on your home SIM.
- 3. Set Anon eSIM as the mobile data line; keep calls/SMS on your primary.
- 4. Land in Seoul, drop airplane mode, and you're connected within a minute.
No ID, no account, no email - $5 minimum plus a one-time $5 setup fee for a new eSIM. Top-ups later are fee-free.
On the ground in Seoul
Incheon and Gimpo both cover 5G at every gate on KT and SKT; the AREX airport train stays on 5G to Seoul Station. Central Seoul, Gangnam, Hongdae, Itaewon, and the Hangang riverside all run mid-band 5G with 400-900 Mbps typical - genuinely the fastest big-city mobile data in the world. Every subway line has continuous underground coverage. KTX to Busan stays connected the whole way at high speed. Korea's mmWave 5G deployment is limited, but the sub-6 experience is what people rave about.
Seoul eSIM FAQ
Does Anon eSIM work in Seoul?+
Yes. In Seoul the eSIM attaches to KT or SK Telecom (5G) - the same networks locals use. Dense city coverage is the easiest case for any roaming profile; you'll be online within a minute of leaving airplane mode.
What does mobile data cost in Seoul?+
South Korea's rate is $1.40/GB, billed per MB against a prepaid USD balance that never expires. $10 of credit is about 7.1 GB - typically a week or more of maps, messaging, and social use.
Should I install the eSIM before flying to Seoul?+
Yes - install on home Wi-Fi and it activates the moment you land, so you're online in the arrivals hall instead of hunting for airport Wi-Fi or a SIM kiosk. Installation is a QR scan or a one-tap iPhone install; no ID, no account.
Can I hotspot my laptop in Seoul?+
Yes - hotspot is included at full speed on every plan, no extra fee. Cafés-with-bad-Wi-Fi are exactly what it's for.