When I was putting together my Japan itinerary, I realized how much I would depend on maps, train schedules, and translation apps. That made me look into the advantages of Mobal Pocket WiFi https://www.mobal.com/pocket-wifi-japan/ before leaving. It seemed like a practical option for staying online throughout the trip. Having internet access everywhere made exploring unfamiliar neighborhoods much less stressful, and I could adjust my plans whenever I found an interesting place nearby.