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eSIM, SIM, Wi-Fi and the map apps that work here.
eSIM, SIM Card or Pocket WiFi in Korea: Your Options
For most short trips, a carrier tourist eSIM is the simplest option: KT and SK Telecom both list unlimited-data eSIMs at ₩18,000 for 3 days (October 2026). Choose a physical SIM if your phone has no eSIM, or a pocket WiFi router if several devices will share one connection.
Checked October 5, 2026