🇰🇷 South Korea

Yes. South Korea has excellent eSIM support. All three major carriers — SK Telecom, KT, and LG U+ — support eSIM. GoSIM South Korea eSIMs work on any eSIM-compatible device including iPhone XS and later, Samsung Galaxy S20+, and Google Pixel 3+.

GoSIM South Korea plans connect to SK Telecom, KT, or LG U+ depending on the plan. SK Telecom is South Korea's largest carrier with the most extensive coverage. KT and LG U+ both offer strong nationwide coverage including in Seoul, Busan, and Jeju Island.

For a 7–10 day trip with typical tourist usage — NAVER Maps, KakaoTalk, translation apps, social media — a 5–10 GB plan is comfortable. Seoul's subway has comprehensive WiFi, but above-ground and out-of-city travel benefits from consistent mobile data.

For solo travelers, yes — eSIMs are cheaper, lighter, and don't need to be returned. Pocket WiFi is better for groups sharing one device, but requires picking up and dropping off at the airport, which adds friction at both ends of your trip.

Korean mobile networks provide coverage in many Seoul subway stations and tunnels. Your connection and available speeds depend on the network, route and plan; do not assume uninterrupted LTE or 5G coverage throughout every journey.

GoSIM South Korea plans can be used on Jeju Island. Check the network coverage for Jeju City, Seogwipo, coastal stops and Hallasan National Park before your trip. Signal and speeds vary by location, especially in mountainous or remote areas.

GoSIM South Korea plans range from 1 day to 30 days. Plan duration starts from first activation — when your phone connects to a Korean network — not from purchase date.