Global Advanced Communications is a long-established rental service among the same kind of services in Japan. Since 2009, they have offered various communication tools, including iPhone, Android device, data SIM, and portable WiFi (pocket WiFi) to the people visiting Japan. Although it seemingly hard to complete your order as their order pages having too much options, their long history gives you a certain sense of credibility.
|7 days||5500 JPY -|
|14 days||7650 JPY -|
|Handling fee||0 JPY|
|Shipping fee||0 JPY|
Unlimited data, covering local areas! KDDI is a parent company of WiMAX, and accordingly you can use the 4G LTE by au in the areas covered by WiMAX 2+, which is wider than that of by WiMAX. Also the downloading speed becomes faster accordingly. If you go to local areas, the trouble of unconnected with the internet will be decreased as you can use WiFi via the network by KDDI.
Unlimited data, recommended for use in urban areas! Y!mobile offers a service called unlimited data advanced mode, which is available only with devices compatible with it. It enables you to connect with the internet without worrying about the data capacity and the transmission speed. Although the service does not available in many rural areas yet, you can use it in urban areas without any problems. Regular mode covers area wider than that of with the advanced mode, however, if you over the data capacity of 7GB, the transmission speed decreases to 128kbps. Note that if you change the mode to the advanced in that situation, the speed does not be changed until that month is over.