Your Japan Unlimited SIM gives you 7GB of data at super-fast 4G LTE speeds each calendar month.  If you use more than 7GB, speeds are restricted (but you can still use an unlimited amount).

7GB of high-speed data simply not enough?  Check out our super-charged data options below…

Extra 1GB of data – ¥980

Just need an extra boost of fast data to keep you going until the end of the month?  Simply add an extra 1GB of 4G LTE data for ¥980.  You can add 1GB as many times as you like at ¥980 per GB.

10GB Monthly Plan – ¥5,980

Need more than 7GB of fast data each month?  Upgrade to our 10GB Plan for just ¥5,980 per month.  If you use more than 10GB of 4G LTE data, your speeds will be limited to 128 kpbs (but you can still use an unlimited amount).  Your 10GB speed restriction is reset on the 1^st day of the month.  You can still add extra Gigabytes as and when you need them for ¥980 per GB – or upgrade to our 15GB plan…

15GB Monthly Plan – ¥7,980

Need more than 10GB of data each month?  Upgrade to our 15GB Plan for just ¥7,980 per month.  If you use more than 15GB of 4G LTE data, your speeds will be limited to 128 kpbs (but you can still use an unlimited amount).  Your 15GB speed restriction is reset on the 1^st day of the month.  You can still add extra GigaBytes as and when you need them for ¥980 per GB.

How to add extra GBs

To add extra GBs or upgrade/downgrade your monthly plan, simply log-in to your online account at www.mobal.com/myaccount – easy!