Pocket WiFi and Mobile Internet in Japan (2025 Guide)
Whether you just arrived and need internet immediately, or you’re waiting for fiber installation, here’s how to stay connected in Japan. 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. ...