Pocket WiFi Coverage in and around Tokyo
The capital city of Japan, Tokyo is the first t. In the main area of Tokyo there is Connection anywhere. Since you are probably coming to Tokyo, you should not worry about the Mobile Wi-Fi in Tokyo main area.
Area Coverage in & around Tokyo
The next figure shows in red the coverage area in Tokyo and nearby areas. There is some difference between the Premium Pocket Wi-Fi and the Business Pocket Wi-Fi when we talk about coverage. If you are going to some hot spring in the mountains near Tokyo or any place isolated we highly suggest the Premium Pocket Wi-Fi.