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Super convenient mobile internet for traveling in Japan – easily purchase mobile data plans

Published: 2026-09-25 👁 100 views
Last updated 2026-09-25 — When traveling, some people rely on online maps to find shops, while others enjoy uploading photos to share beautiful scenery in real time. As a result, solving internet access issues abroad to make trips more comfortable and convenient has become one of the concerns for many...

By the MOOK Scenic Spots Home Travel Life Network Editorial Team

When traveling, some people rely on online maps to find shops, while others enjoy uploading photos to share beautiful scenery in real time. As a result, solving internet access issues abroad to make trips more comfortable and convenient has become one of the concerns for many. Now, Taiwanese travelers visiting Japan have a more convenient way to access mobile internet. Japan’s So-net Corporation has launched the “Prepaid LTE SIM” card, which utilizes NTT DoCoMo’s high-speed network to provide nationwide mobile internet coverage across Japan, including both urban and rural areas. The most affordable 30-day, 100MB plan starts from just 3,000 Japanese yen (approx. NT$80), with an average daily cost of less than NT$30 to enjoy convenient connectivity. In addition to meeting travelers’ internet needs, it also offers a more convenient and fast mobile internet service for Taiwanese visitors on short trips to Japan.

Illustration of the So Net “Prepaid LTE SIM” package appearance. (Image provided by So-net)


Use your own communication device

In 2013, the number of Taiwanese travelers visiting Japan exceeded 2.3 million. For short-term visitors, convenient internet services have become an urgent need. So-net has introduced a convenient prepaid SIM card service at airports, allowing foreign tourists to easily purchase and continue using their familiar devices for internet access, providing diverse online options for travelers in Japan. SIM cards can be bought right at the airport upon arrival and used immediately.

The “Prepaid LTE SIM” offers two plans, allowing consumers to choose between 100MB or 500MB options based on their needs. With three different SIM card sizes available, a total of six products have been officially launched for sale. The 30-day, 100MB plan is available for 3,000 Japanese yen (approx. NT$80), and the 60-day, 500MB plan is 5,000 Japanese yen (approx. NT$475). With an average daily cost of less than NT$30, you can enjoy convenient connectivity, and additional data can be purchased through a top-up service once the data allowance is used up.

Starting April 22, So Net began offering “Prepaid LTE SIM” sales via vending machines at Kansai International Airport. (Image provided by So-net)


Easily purchase from vending machines

The “Prepaid LTE SIM” is a prepaid card that only requires simple online registration after purchase to activate. Whether you’re a budget-conscious traveler or someone who needs internet access as soon as you arrive in Japan, it’s very convenient to use—perfect for tourists or business travelers on short visits. Additionally, “Prepaid LTE SIM” offers multilingual support, including Japanese and English phone services, as well as content in Japanese, English, and Chinese on its official website for user reference.

Starting now, the “Prepaid LTE SIM” is available for sale at Kansai International Airport and Narita International Airport in Japan. At Kansai International Airport, it is sold directly via vending machines, a first in Japan. The biggest advantage is that travelers don’t need to worry about flight arrival times—they can easily purchase a SIM card at any time via the vending machine. At Narita International Airport, it is available at the Telecom Square Mobile Center in both Terminal 1 and Terminal 2.


Can be used forLTE internet access, with customizable data allowances andSIMSIM card sizes totaling6product variations

 
Data Allowance
Valid Period
Price
SIM Card Size
Maximum
Download Speed
100M
Plans
100MB
30 Days
3,000 Japanese yen (tax included)
2,778 Japanese yen (tax excluded)
Standard SIM
Download: 150Mbps / Upload: 50Mbps
/ Upload: 50Mbps
micro SIM
nano SIM
500M
Plans
500MB
60 days
5,000 Q (tax included)
4,630 Q (tax excluded)
Standard SIM
micro SIM
nano SIM
※ Prices may vary by store.
 
Top-up Plans
 
Data
Valid period
Price
Maximum speed
200 MB top-up
200MB
30 days
1,500 Q (tax included)
Download: 150 Mbps
/ Upload: 50 Mbps
500 MB top-up
500MB
30 days
2,000 Q (tax included)
1 GB top-up
1GB
60 days
2,838 Q (tax included)
 


※ A credit card must be registered before topping up.
※ Users can check data usage and top-up details on the website.
※ For the process from purchasing a SIM card to activation, please refer to the So-net official website.

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》http://www.mook.com.tw/article.php?op=articleinfo&articleid=10059
 

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