eSIM 4G/5G Data Plan for Japan DOCOMO/KDDI Native QR Code

eSIM stands for embedded SIM, an advanced new technology that allows devices to access the internet without inserting a physical SIM card, and easily switch networks in different destinations. It is only workable in eSIM-supported devices. It doesn't need to be posted, and the QR activation code will message the traveler in the Viator booking within 24 hours.