Internet & connectivity guide for travelers
Network: Very fast — 4G/5G nationwide
Physical SIMs are sold at airports but require a passport and can be pricey. An eSIM is the easiest option for tourists — no paperwork, instant activation.
eSIM compatibility:5/5
View Japan eSIM plansMarch–May (cherry blossom) or October–November (autumn colours)
Getting around: Shinkansen bullet trains and an extensive metro network