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KDDI to Offer "Travel Data eSIM powered by GigSky" Japan's First eSIM Service for Dual SIM iPhones


April 11,2019

KDDI CORPORATION and OKINAWA CELLULAR TELEPHONE COMPANY on April 17 will begin offering "Travel Data eSIM powered by GigSky," the first service ever offered by a Japanese carrier [Jump to the applicable section1] enabling users of dual SIM-compatible iPhones to use local data services through a secondary phone line when traveling in North America and Hawaii.

The service is made available through the eSIM platform operated by GigSky (Palo Alto, U.S., CEO: Ravi Rishy-Maharaj). Since the service is purchased through a special app as a plan with a preset time period and data volume, it is easy to use without worry.

KDDI and OKINAWA CELLULAR provide the service for a "World Data Flat" that offers overseas data transmission for an affordable one-time fee of ¥980 per 24 hours of access. The offer is made in response to the needs expressed by customers who want to economically use the same iPhone overseas that they always use in Japan.

Now customers can access data service through their own iPhones without having to rent a Wi-Fi router. The service brings convenience and availability of service not just to holiday travel, but also to long-term stays like study abroad.

About 'Travel Data eSIM powered by GigSky'

(1) Compatible handsets

iPhone XS, iPhone XS Max, iPhone XR

(2) Service regions

The United States (continental, Hawaii, Alaska), Canada, Mexico, Puerto Rico, the U.S. Virgin Islands

(3) Fees

30-day plan: 5GB, ¥5,800
30-day plan: 8GB, ¥8,900

  • Use fees do not include any consumption tax or local equivalents. Service period begins with start of data transmission, and ends at the same time 30 days later.

(4) Service launch date

April 17, 2019

(5) How to use [Jump to the applicable section2]

From the App Store, download the "Travel Data eSIM" app. From the app, create an account, set your payment method, purchase a plan, and download your eSIM data. After arrival at your destination, you can start using the plan automatically through connections to local networks.

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For details, please visit the au website at:
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As KDDI works with OKINAWA CELLULAR to achieve the goal of "integrating telecommunications and life design," we will continue to be a company that always offer exciting new ideas, creating a new experience of value by providing customers with services that make them feel glad that they used au.

For reference: About GigSky

Founded in 2010, GigSky is a leading provider of global cellular connectivity and eSIM solutions for consumers, businesses and manufacturers. Through our 500+ carrier network, GigSky provides affordable and reliable coverage in over 200 countries and territories. Our innovative products include enterprise mobile data management solutions, IoT solutions, and consumer roaming solutions such as the GigSky global SIM.


  • [1]
    KDDI research, current as of April 11, 2019.
  • [2]
    Available for immediate use upon purchase of an iPhone from au or SIM-free iPhone. For iPhones purchased from carrier other than au, your iPhone must be unlocked before use.

  • The information contained in the news releases is current at the time of publication. Products, service fees,service content and specifications, contact information, and other details are subject to change without notice.