When choosing an eSIM for traveling in Japan, many people may wonder, "Which network is recommended among Docomo, au, and SoftBank?"
Japan has multiple telecommunications companies, but for travel eSIMs, the networks of Docomo, au, and SoftBank are mainly used.
Since each has different communication areas and features, it is important to choose based on your travel destination and usage style.
In this article, we will explain in detail the differences between the three networks and recommend the best network for traveling in Japan.
If you want to know more about Japan eSIMs, please check out the Complete Guide to Japan eSIM .
What are Docomo, au, and SoftBank?
Docomo, au, and SoftBank are the three major telecommunications networks in Japan.
| Telecommunications Company | Features | Recommended for Travel |
|---|---|---|
| Docomo | Easy to use nationwide | ★★★★★ |
| au | Stable in both urban and rural areas | ★★★★☆ |
| SoftBank | High-speed communication in urban areas | ★★★★☆ |
Many products utilizing these networks are available for travel eSIMs.
Comparison of Communication Areas
| Comparison Item | Docomo | au | SoftBank |
|---|---|---|---|
| Tokyo | ★★★★★ | ★★★★★ | ★★★★★ |
| Osaka | ★★★★★ | ★★★★★ | ★★★★★ |
| Kyoto | ★★★★★ | ★★★★★ | ★★★★☆ |
| Regional Cities | ★★★★★ | ★★★★☆ | ★★★★☆ |
| Mountain Areas | ★★★★★ | ★★★★☆ | ★★★☆☆ |
In major tourist areas, you can usually use any of the networks comfortably.
If you plan to travel to rural or mountainous areas, Docomo's network tends to be easier to use.
Comparison of Communication Speeds
Communication speeds vary depending on the location, time of day, and congestion levels.
| Comparison Item | Docomo | au | SoftBank |
|---|---|---|---|
| Urban Areas | ★★★★★ | ★★★★★ | ★★★★★ |
| Rural Areas | ★★★★★ | ★★★★☆ | ★★★★☆ |
| 5G Compatible | ★★★★★ | ★★★★★ | ★★★★★ |
| Overall Rating | ★★★★★ | ★★★★☆ | ★★★★☆ |
For regular travel usage such as Google Maps, LINE, social media, and video streaming, all three companies provide a comfortable experience.
Recommended Networks by Travel Style
| Travel Style | Recommended Network |
|---|---|
| Traveling in Tokyo, Osaka, and Kyoto | All three companies |
| Regional Tourism | Docomo, au |
| Traveling Across Japan | Docomo |
| Urban-Centric | SoftBank |
If your travel destinations are only major cities, you are unlikely to notice significant differences between the networks.
Which Network Should You Choose for Traveling in Japan?
The recommended network varies depending on your travel destination and duration of stay.
| Travel Style | Recommended Network | Reason |
|---|---|---|
| First Time Traveling to Japan | Docomo | Easy to use nationwide |
| Tokyo, Osaka, Kyoto | Docomo, au, SoftBank | All networks are stable |
| Traveling to Hokkaido, Kyushu, and Rural Areas | Docomo | Easy to use even in rural areas |
| Urban-Centric | SoftBank, au | High-speed communication is expected |
| Long-Term Travel | Docomo | Wide communication area |
For typical travel in Japan, you can comfortably use Google Maps, LINE, social media, and more with any network. If you plan to travel to rural areas, choosing a network with a wide communication area will provide peace of mind.
Can You Choose a Network for Travel eSIM?
For travel eSIMs, the communication network used is determined for each product.
Before purchasing, check the product page for the available networks and coverage areas.
It is also important to compare not only the telecommunications companies but also the data capacity and duration of use.
Frequently Asked Questions
Which network is the most recommended?
When traveling across Japan, networks with wide communication areas are often chosen.
Is any network fine for traveling in Tokyo?
Yes. In Tokyo, Docomo, au, and SoftBank can all be used comfortably.
Can I use communication in Kyoto and Osaka as well?
Yes. In major tourist areas, the environment is set up for easy use with any network.
Which network is recommended for rural travel?
If you plan to visit rural or mountainous areas, it is advisable to choose a network with a wide communication area for peace of mind.
Is there a significant difference in communication speeds?
In typical travel usage, you are unlikely to notice significant differences, and speeds can vary depending on the location and congestion levels.
Can I use 5G?
If you have a compatible device and are in a compatible area, there are products that allow you to use 5G communication.
Can I choose a network when purchasing an eSIM?
The network used varies by product. Please check the product description before purchasing.
Can I use Google Maps and LINE with any network?
Yes. As long as you can use data communication, you can use Google Maps, LINE, social media, email, and more as usual.
Conclusion
Docomo, au, and SoftBank are all representative telecommunications networks in Japan, widely used for travel eSIMs.
- Check the communication area for nationwide travel
- In urban areas, all three companies are easy to use comfortably
- Compare communication areas for rural travel
- Check the network used on the product page
In addition to the number of travel days and data capacity, make sure to check the communication network used, and choose the Japan eSIM that suits you best.
