Use Wi-fi
Using Wi-Fi in buses, subways, and public places can save data bills




Using Wi-Fi in buses, subways, and public places can save data bills




Sensitive personal information such as financial sites
Personal information due to reckless Wi-Fi connection
An APK file or pop-up window that is automatically downloaded while using public Wi-FiService available overseas through domestic mobile communication network
Data can be used overseas through a portable Wi-Fi router
You can purchase USIM chips from overseas and use them within the data