You want to use the Internet immediately with your family in Japan.
To you I recommend a home router that can be used by a family of 3-4 people without installation.
However, you may have some concerns as below.
- Which company is the best?
- I can’t speak Japanese, I want foreign language support.
- I want to know what my home router can do and sign up for it.
In order to solve your problem, I will introduce the following contents of Japanese home routers on this page.
- Comparison of Japanese home router companies
- Foreign language support for each home router contract
- Performance of each router
- Initial and monthly cost of each home router
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Comparison of Japanese Home Router Companies
This is a comparison of two Japanese home routers (docomo, softbank).
A comparison of the following information will give you the answer to the two directions.
If you value your Internet connection speed, proceed to sign up for a docomo home router.
If you are looking for the cheapest monthly payment when you sign up, then you should sign up for a SoftBank home router.
| company | price | line speed | Connectable devices | |
 | 4,950yen | Average Ping value: 51.63ms Average download speed: 207.05Mbps Average upload speed: 20.74Mbps Fewer restrictions on Internet access | 65 units | |
 | 4,180 yen (1st to 24th month) 5,368 yen (25th month～） Cash back available for changes from other companies. | Average Ping value: 45.74ms Average download speed: 61.32Mbps Average upload speed: 6.86Mbps Speed limits are enforced on holidays and at night when the number of users is high. | 128 units |
The following four companies(Docomo,Wimax,Softbank,au) provide home routers in Japan.
Docomo and Softbank have foreign language translation support, so we will introduce those two companies here.
Docomo and Softbank are major cell phone companies.
Home 5G “ Docomo home router ”
Home Router 5G is a home router offered by DOCOMO, the largest cell phone company in Japan.
Docomo’s HOME 5G is the fastest line service among home routers as of May 2022.
And it is a home router that currently has few cases of communication capacity usage restrictions.
Foreign language support provided by docomo
| website | Japanese (Translation software is recommended) |
| Telephone support | English, Chinese, Spanish, Portuguese, Vietnamese |
| Documents | Japanese |
Characteristics of docomo home router
| Item Name | home 5G HR01 |
| Number of connected units | 65 units |
| サイズ、重量 | 17cm×9.5cm×9.5cm、approx 750ｇ |
| line speed | Average Ping value: 51.63ms Average download speed: 207.05Mbps Average upload speed: 20.74Mbps ※Quote：Everyone’s line speed |
| WiFi Standard | IEEE802.11a/54Mbps IEEE802.11b／11Mbps IEEE802.11g／54Mbps IEEE802.11n (Wi-Fi 4)/300Mbps IEEE802.11ac (Wi-Fi 5) / 867Mbps IEEE802.11ax (Wi-Fi 6) / 1201Mbps ※2.4GHz/5GHz Docking |
| Area | All over Japan |
| Available Locations | Registered address only Can be changed online when moving. |
| Data capacity | Unlimited |
It is said that there is a limit if you use more than a certain amount of data in 3 days.
However, users have said that they have not been subject to the limit even after using 1TB in 3 days, so it appears that the limit is not in effect yet.
Cost of docomo home router
| Cost Monthly fee | 4950 yen |
| Machine fee | 39,600 yen (practically 0 yen) *Payable in 36 installments over 36 months. But discount real payment 0 yen If you cancel before the end of the 3-year payment period, you must pay the remaining balance. |
| Administration fee | 3300 yen |
| docomo smartphone discount | -1100 yen |
*Confirmed with docomo by phone in July 2022. Some changes may occur. Please pay attention.
5G of docomo home router
Docomo’s 5G area can be checked from the following website. Please check if your location is included.
https://www.docomo.ne.jp/area/
Softbank air “ softbank’s home router ”
Softbank is one of the leading cell phone companies in Japan.
Its group companies include Yahoo (Internet), LINE (messenger application), and Paypay (electronic payment service).
It is the smallest of the three major phone companies, but it is an emerging company that has grown large through challenges.
It often launches new services on the phone and on the Internet.
Foreign language support provided by Softbank air
| website | Japanese (Translation software is recommended) |
| Telephone support | English, Portuguese, Spanish, Chinese |
| Documents | Japanese |
Characteristics of Softbank air
| Item Name | Air Terminal 5 (Air ターミナル５) |
| Number of connected units | 128 units(Lan port 2) |
| サイズ、重量 | 22.5cm×10.3cm×10.3cm、approx 1086ｇ |
| line speed | Average Ping value: 45.74ms Average download speed: 61.32Mbps Average upload speed: 6.86Mbps ※Quote：Everyone’s line speed |
| WiFi Standard | IEEE802.11a IEEE802.11b IEEE802.11g IEEE802.11n (Wi-Fi 4) IEEE802.11ac (Wi-Fi 5) IEEE802.11ax (Wi-Fi 6) ※2.4GHz/5GHz Docking |
| Area | All over Japan |
| Available Locations | Registered address only Can be changed online when moving. Please note that temporary moves not based on relocation or moving are not allowed. |
| Data capacity | Unlimited |
SoftBank Air is structured so that a single mobile line is shared by multiple users.
Therefore, if there is too much concentration of users, the line may become disconnected.
For such reasons, restrictions may be imposed during times when users are concentrated, such as at night or on holidays, and adjustments may be made so that all users can connect to the Internet even if the speed is slow.
In such cases, the speed will be slow.
Cost of docomo home router
| Cost Monthly fee | 4,180 yen(1st to 24th month) 5,368 yen(25th month～) |
| Machine fee | 71,280 yen (practically 0 yen) *Payable in 36 installments over 36 months. But discount real payment 0 yen If you cancel before the end of the 3-year payment period, you must pay the remaining balance. |
| Administration fee | 3300 yen |
| docomo smartphone discount | 1188 yen/unit ※Softbank and Y-mobile users |
*Confirmed with docomo by phone in July 2022. Some changes may occur. Please pay attention.
5G of softbank home router
Softbank’s 5G area can be checked from the following website. Please check if your location is included.
https://www.softbank.jp/mobile/network/area/map/
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