Pocket WIFI is the best for your trip or business trip to Japan for more stable communication than SIMcard or eSIM.

If you’re planning to travel to Japan, ensuring a stable network connection is crucial. While prepaid SIM cards and eSIMs are convenient, considering factors like network stability, data capacity, and user-friendliness, renting a Pocket Wi-Fi is the best option. This recommendation is especially pertinent for those intending to use the internet for work purposes in Japan.

Now, what should you pay attention to when using Pocket Wi-Fi in Japan? For those unfamiliar with Japan’s mobile networks, let’s summarize three key points. What’s the optimal Pocket Wi-Fi service for a business trip to Japan?

How much data usage is required?

Amount of data usage used by service

ServiceData usage20GB100GB
Web page
0.4MB48,000 times240,
000 times
GoogleMAP0.6MB3,000 times15,000 times
Instagram400MB/hour40 hours200 hours
ZOOM600MB/hour33.2 hours166 hours
Youtube360p: 200MB/hour
100 hours
44 hours
28 hours
15 hours
500 hours
220 hours
142 hours
76 hours
NETFLIX(HD) 1.5GB/hour13 hours66 hours
Amazon Prime Video(HD)800MB/hour25 hours125 hours

How much data traffic do you actually need in Japan?

We have considered the amount of data communication needed during your stay in Japan, based on actual data published in Japan.

Monthly Data Usage of Japanese Smartphone Users is Around 10GB

As of the 2023 survey conducted by Japan’s Ministry of Internal Affairs and Communications, Japanese smartphone users consume approximately 10GB of data per month. Source

Given that this data pertains only to smartphones, if you’re using Pocket Wi-Fi to connect devices like smartphones and laptops, estimating a higher data capacity, say around 50GB, should be sufficient.

Given that this data pertains only to smartphones, if you’re using Pocket Wi-Fi to connect devices like smartphones and laptops, estimating a higher data capacity, say around 50GB, should be sufficient.

We would recommend planning for about 50GB of data communication per month during your stay in Japan. However, there aren’t many Prepaid SIM cards or eSIMs in Japan that offer over 50GB. Also, Most of all Prepaid SIM cards and eSIMs are provided by MVNOs, which may have periods of poor communication quality.

On the other hand, Pocket Wi-Fi is provided by major communication carriers, so the communication quality is stable, and there are plans that offer large amounts of data exceeding 50GB. Therefore, if you need a large amount of data, Pocket Wi-Fi might be a better choice.

Data usage of Pocket Wi-Fi in December 2023

The actual measured data for users who rented pocket Wi-Fi from LightPocket in December 2023 is summarized below.

Median monthly data usage: Approximately 28GB.
While some users had high data consumption, the majority stayed below 80GB.

LightPocket offers a low-cost plan for those who do not need as much data capacity but need a stable network.
docomo Pocket Wi-Fi
Having a 100GB data allowance with Pocket Wi-Fi should cover even those who use a significant amount of data without any issues.
Softbank 100GB/Month Pocket Wi-Fi

How much internet speed do you need with pocket Wi-Fi?

Video Meeting services (Zoom, Google Meet, etc.) and video streaming services (Youtube, Netflix, Amazon Prime Vide, etc.) requires fast Internet speed. As long as the connection speed exceeds the speed required by the video services, there is no problem for other services such as e-mail, web browsing, and social media.

Required speed by major video services

The following is a summary of how much speed the major video services require.

Required speedVideo Resolution
Google Meet2.6 mbps with 2 participants
3.2 mbps with 5 participants
4.0 mbps with 10 participants
YouTube20 Mbps
5 Mbps
2.5 Mbps
1.1 Mbps
0.7 Mbps
HD 1080p
HD 720p
SD 480p
SD 360p
NetFlix15 Mbps
5 Mbps
3 Mbps
1 Mbps
1080 p
720 P
480 p
Prime Video5 Mbps
1 Mbps
1080 p
480 p

You can watch the 4K video with the speed of 20Mbps. Since 4K quality is for viewing on a TV or other large screen, a speed of 10 Mbps is actually sufficient.

Is the actual pocket Wi-Fi in Japan speed more than 10 Mbps?

The speed is the average of data measured by more than 50 Japanese people in the last three months. Data speed depends not on the performance of the device, but on the SIM cards provided by which telecommunication company.
This data is the average of communications with 5G and 4G networks.

Telecommunication ServicesAverage download speedPocket Wi-Fi Rental
docomo(MVNO)*11.29Mbps – 59.75Mbps🟡

docomo, which is increasingly communicating by 5G, is seeing faster average speeds.
Most pocket wifi that foreigners can rent in Japan are on 4G networks. In the table above, the speed of softbank or Wimax or docomo(mvno) is important.
As of September 2022, MVNO SIMs are mainly 4G, and recent data measurements indicate that MVNOs are running at speeds of 11 Mbps or higher, so we can say that the Pocket Wi-Fi’s speed is adequate.
*Actual speeds may be slower than the data above. The speeds of pocket wifi vary greatly depending on the time and location.
Please see this article for more information.

Renting a Pocket WIFI in Japan: How fast is the connection speed?

The speed of pocket Wi-Fi in Japan is over 10 Mbps, so the speed is very good.

Can you connect at the place you are staying?

The strength of the signal varies from place to place, and the area of connection depending on the telecommunications company.
The following is an overview of the speed and area of each carrier’s pocket wi-fi.

Telecommunication ServicesSpeedcoverage area

Most pocket Wi-Fi for visitors to Japan include a Softbank, Wimax, or docomo (mvno). Therefore, it is the areas of Softbank, Docomo, and Wimax that you need to focus on.
Pocket Wi-Fi rental services for tourists and international students visiting Japan are designed to be used in a variety of locations, so They provide pocket Wi-Fis with a wide area of connectivity such as docomo and Softbank. WiMAX has a high-frequency bandwidth and high speed, but it is difficult to connect in buildings or in rural areas.

docomo and Softbank connect in most places, but Wimax is difficult to connect in rural areas.

Before renting a pocket Wi-Fi, some rental service companies will answer if you ask them to find out if the address where you are staying is in an area that is connected or not.
Japan Pocket Wi-Fi Rental

There is no “Unlimited Data” pocket Wi-Fi for Japanese

Around February 2021, one of Japan’s pocket Wi-Fi services became a major problem due to slowdowns in transmission speeds, even though the service offered unlimited data connection. Complaints about unlimited but no connection spread to social media and became a hot topic. In response to this issue, the Ministry of Internal Affairs and Communications issued administrative guidance and then, most services have clarified the data communication capacity that can be communicated per month.
Currently, there is no pocket Wi-Fi with guaranteed unlimited communication that Japanese can contract. Even if a service overstates its unlimited data, there is in fact a cap on data usage.
However, since the limit is unclear, it would be wise to use a service that has a clearly defined data communication limit.

Pocket Wi-Fi rental service for travelers and international students in Japan

The 3 requirements pointed out above

Data100GB/month or higher
SpeedOver 10Mbps

Here are some online services that you can rent a Pocket Wi-fi that meets these requirements.


SpeedOver 10Mbps

If you contact them and give them your address you are staying, they will check if is in the communication area or not.

Wi-Fi RENTAL Store

SpeedOver 10Mbps

They are a long-established company in the rental WIFI industry. It can be delivered all over Japan and can be received at their offices.

eConnect Japan

SpeedOver 10Mbps

They have been providing online rental services for a long time. More recently, they have been known for their eSIM and data capacity comparison services for Japanese customers. There are three data usage plans from 10 GB to 100 GB with 4G in eConnect Japan. The WiFi connection allows you to use the 4G Internet for 10 GB, 50 GB or 100 GB during your renral.

← Renting a Pocket Wifi in Japan - Advantages and disadvantages of Pocket Wi-Fi and comparison of recommended services
Which is the best pocket WiFi For short-term travelers to Japan? →


I am Japanese and my nickname is Momo. I have been working in the mobile telecommunications industry for about 7 years and am familiar with Japanese telecommunications services. Although my English is not very good, I would like to provide useful telecommunication-related information to those who stay in Japan as accurately as possible.

What to Read Next