Pocket WiFi and Mobile Internet in Japan (2025 Guide)
Pocket WiFi and SIM cards are both solid options for staying connected in Japan — but which one makes sense depends entirely on your situation. Choosing the wrong option means either overpaying or dealing with constant connectivity problems. Here’s how to decide. Your Options at a Glance Option Speed Cost Setup Time Pocket WiFi (rental) Medium ¥3,000–¥5,000/month Immediate Data SIM card Medium ¥1,500–¥4,000/month Same day Home WiFi router (SIM) Medium ¥3,000–¥5,000/month Same day Fiber internet Fast ¥4,000–¥6,000/month 2–4 weeks Pocket WiFi A portable WiFi router that connects multiple devices (phone, laptop, tablet) to mobile internet via a SIM card inside. Carry it in your bag and you have WiFi anywhere in Japan. ...