Rental Wi-Fi Service

What is your Wi-Fi service coverage area?
Our Wi-Fi service provides good coverage throughout Japan, utilizing multiple high-speed networks. For specific area coverage information, by network, check the following:
・for model W05 here
・for model 304HW here
・for model 401HW here
・for models MF98N, E5383 here
Are your Wi-Fi devices easy to use?
Yes. To connect, you turn on our rental device, select its Wi-Fi network name from your phone (or your other Wi-Fi enabled
devices) and input the password. It really is that simple. An instruction guide is included to step you through setup and daily use.
What comes in your Wi-Fi device pack?
The pack includes a small Wi-Fi device (mobile router), a USB wall charger & cable, a USB mobile battery, an instruction guide and a customer questionnaire.
Are there any bandwidth caps on your Wi-Fi devices?
At some point, total data allowance limits do exist. Different network providers apply different limits in line with their own fair usage policies (FUPs). If a provider thinks your Wi-Fi device is consuming too much data too quickly, they may apply a temporary stop or speed restriction on the connection.
Our devices are subject to the following network provider imposed limits:
- model W04: No monthly cap but if usage exceeds a total of 10GB in 3 consecutive days, the network provider might temporarily suspend the connection
- model 304HW: Cap of 50GB per month, and 5GB in a 3-day period
- model 401HW: Cap of 7GB per month, and 3G in a 3-day period
- models MF98N & E5383: No monthly cap but if usage exceeds a total of 3G in 3 consecutive days, the network provider
might temporarily suspend the connection.
Does your Wi-Fi device support smartphones, tablets and other mobile devices purchased outside Japan?
Yes, our Wi-Fi devices support Internet connectivity for any Wi-Fi enabled smartphone, tablet or laptop device/s.
Can I receive a Wi-Fi device the day after I order it online?
Yes, if you order prior to 2PM Japan Standard Time one day prior to your intended pick up and use, then a quick delivery is possible*.
*This option depends on the delivery address/location, which determines delivery logistics. Contact us for specific advice.

Rental Period

How is your rental period calculated?
The date the product arrives at the nominated pickup address is defined as the ‘Rental Start Date’. The date the product is placed in a Japan Post box for return is defined as the ‘Rental End Date’.
Can I return the product before the end of the rental period (i.e. return it early)?
Yes, you can return the product at any time before the end of the rental period. However, there are no refunds for early returns (i.e. unused days).
Can I extend my rental period?
Yes, if you wish to extend the rental period you must do so in advance of rental period expiry*.
*Overdue fees will be levied on extensions made/applied for after the rental period ends.
Do I need to pay Internet access fees?
No, internet access fees are not charged in addition to the overall service rental fee if bandwidth caps are not exceeded.


Are there additional charges to your stated service rental fees?
Yes, there is a 1,080 yen (tax inclusive) fee for shipping, and a fee for product damage/loss insurance (which is optional).
Can I get a partial refund if I return the product before the end of the rental period?
No, there are no partial refunds for early returns (i.e. unused days).

Delivery / Return

Does the shipping fee cover delivery and return?
Yes, the shipping charge covers both delivery (to you) and return (back to us).
Can you deliver directly to my hotel?
Yes, we can deliver to the reception desk of the hotel address you indicate in the online order form. When ordering, please indicate the recipient’s name in the recipient field.
Can I return the product via any post box?
Yes, you return the device, using the envelope included in the pack, via any (Japan Post) post box*. *You must return the product via a post box in Japan. International delivery is not accepted.
Are there any post boxes at the airport?
Yes, every airport has a post box. Returns can be made via an airport post box, before you pass through international departure security gates*.
*There are no post boxes beyond international departure security.
How can I find post box locations in Japan?
You can find post boxes via the site PostMap.


I appear unable to receive emails from [Wi-Fi Samurai].
You may need to add our address ([email protected]) to your mailbox’s list of accepted email address domains. Some online emails services and Internet Service Providers (ISPs) can have security settings that filter/block our address domain.
What should I do if I receive a software (firmware) update for the Wi-Fi device?
You can update if you wish, or choose to ignore it. The device will continue to operate normally if you don’t choose to update.
What happens if the Wi-Fi device suffers damage?
You will be required to bear the costs of repair for any malfunctions or damage (including water damage) caused during your rental period. If the device is damaged beyond repair, you will be charged the 42,000 yen replacement cost*.
*If you have our ‘Peace of Mind Insurance’ coverage, repair costs are waived.
If device malfunction occurs during use, contact us ASAP and we will discuss options to send you a replacement device.
What happens if the Wi-Fi device gets misplaced or lost?
If the device is misplaced or lost, you will be charged the 42,000 yen replacement cost*.
*If you have our ‘Peace of Mind Insurance’ coverage, you will be charged only half the 42,000 yen replacement cost
Can I change or cancel my order reservation?
This depends on the circumstances. Please contact us as soon as possible at [email protected]