It happens in an instant. You’re standing at a Kyoto bus stop, trying to pull up Google Maps, and the screen just sits there — spinning, loading, going nowhere. Your Japan eSIM data is finished, and suddenly one of the world’s most navigable cities feels completely inaccessible. No maps, translation. No way to confirm your
“Unlimited data” sounds like the answer to every traveler’s needs. You can stream on the Shinkansen from Tokyo to Osaka, upload videos from Arashiyama, or video call home from Kyoto. But there is an important detail behind the headline: the fair usage policy. If you have ever watched your connection suddenly slow down during a