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【au World Service】What is the World Data Flat?

The World Data Flat is a service provided by au/UQ mobile that allows you to use your smartphone as is in over 160 countries and regions abroad. 

If you book in advance in Japan, you can use it for a fixed fee of 490 yen/24 hours (and 690 yen/24 hours in countries and regions not eligible for the Early Discount Campaign). If you do not book in advance, you can use it for a regular fixed fee of 980 yen/24 hours.

You can start using data whenever you want at your destination, and it will automatically stop when the end time comes, so you can use data safely even overseas without worrying about overusing it.

  • Please note that additional charges are applied for voice calls, video calls, and SMS (C-Mail) / international SMS used overseas.

For your reference

  • To use the World Data Flat, you need to subscribe to the Data Charge Option (free of charge).
    • Customers using UQ mobile must subscribe to a 5G compatible plan. If you already have a 5G compatible plan, you do not need to subscribe to the Data Charge Option.
  • If you do the pre-settings in Japan using the World Data Flat app, you can smoothly start using data at your destination.
  • All of the indicated amounts exclude tax unless otherwise specified.