South Korea eSIM – Ultra-Fast 5G Data
Instant mobile data in South Korea from £4.99. No roaming charges. Keep your UK number. Activates the moment you land.
South Korea has the world's fastest mobile internet. TripSIM connects you to Korea's advanced 5G networks in Seoul, Busan, and across the country.
South Korea mobile networks
- SK Telecom — 4G/5G
- KT — 4G/5G
- LG U+ — 4G/5G
How it works
- Buy your plan in GBP at our UK Stripe checkout.
- Scan the QR code we email you within minutes.
- Land in Seoul and connect automatically.
South Korea eSIM FAQs
Does an eSIM work in South Korea?
Yes — TripSIM eSIMs work across South Korea on local 4G/5G networks (SK Telecom, KT, LG U+). You activate before you fly and it connects automatically when you land.
Can I keep my UK number while using a South Korea eSIM?
Yes. Your physical UK SIM stays active for calls, texts and WhatsApp. The TripSIM eSIM runs alongside it as a data-only line.
Is hotspot / tethering included?
Yes, every TripSIM plan supports personal hotspot.
When should I install the eSIM?
Install before you leave the UK while on WiFi. Activation only starts when you connect to a local network in South Korea.
Is TripSIM cheaper than UK carrier roaming in South Korea?
Almost always. UK carriers typically charge £8–£12 per MB in South Korea. Save up to 90% vs UK roaming.
Should I use Google Maps or KakaoMap in Korea?
KakaoMap and Naver Map are more accurate in Korea than Google Maps. Download them before arrival.