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My phone isn't compatible with esims so I rented this Wi-Fi device for 10 days. I never had to worry about the battery because lasted for hours while I was out BUT even if it died they also provide a portable charger. Picking it up was very simple and for drop off you have to find a red mailbox near you and just drop it in there in the prepaid return envelope they provide. It was also nice that I didn't have to worry about running out of data.

This made my trip so great! There was never an issue with the box, the battery life was amazing! I will definitely be recommending to friends and will repurchase when I travel to Japan again :))

Had perfect internet connection across the entire country, even while hiking in a remote area. Easy to pick up and drop off the wifi. Reasonable price for super fast speeds. Highly recommend!

No problems with connection, speed, battery life, all good. Would like the return system to be clearer and returns back to desk where pick up was.

Great service and product . Would highly recommend

Very easy to use! Convenient and practical for traveling.

Lasted all day and worked perfectly for my group.

As many ohers ahve watched reviews. Japan Wireless offered a relly good mobile hotspot service for the duration of our Japan trip. It was easy to book, receive, and start using. Even returning the package at the end of the trip was fun and had us looking for a post box to drop the return envelop. Great value as well. Will definitely use again.

Fast
light
reliable
reasonably priced

Reserving, pick up, use, and drop off were all seamless and easy! I chose this company over others given I would be picking up and dropping off in different cities, also reviews says there was no slowing of internet speed after using a certain amount. I found this all to be true.
The pocket wifi held charge until mid afternoon, and then the provided external battery lasted me until the evening. I also used the pocket wifi in my hotel room as it was faster speed than the hotel wifi.
Drop off was so easy as there was a mailbox right next to the security line in Narita. I would highly recommend this to anyone I know going to Japan, and I am definitely using this the next time I go!