Prices shown include tax unless otherwise stated.
The amount may differ from the invoice amount due to the calculation of consumption tax.
Pricing structure
To use data communications, you must subscribe to the Basic Pack and a flat-rate packet plan.
- ※Including mobile phone plans (SS)
Basic Pack/Packet Flat Rate
Basic Pack
Packet flat rate
- ●If your data usage exceeds 2.5 GB in a given month, your data communication speed will be slowed down (maximum 128 kbps for sending and receiving) until the end of that month.
- ●To return to normal speed, every 0.5GB550円*To apply to return to the normal speed, please set it up on "My Y!mobile" or contact Y!mobile Customer Center (this will only apply to the current month).
- ●If you sign up for "Auto Charge (Comfortable Mode)", which always maintains normal speeds, you can continue to use high-speed data communication without it slowing down even after exceeding the set data volume.
- ●If you sign up for or cancel the Basic Pack during the month, the monthly fee will be calculated on a pro rata basis. If you cancel the Basic Pack and cancel at the same time during the month, the fee will not be calculated on a pro rata basis.
- ●If you sign up for a flat-rate packet service midway through the month and sign up for a new contract, the monthly fee will be calculated on a pro rata basis. If you sign up for or cancel a service midway through the month, the fee will not be calculated on a pro rata basis.
- ●If you are using the Mobile Basic Plan SS and you change your phone model to a smartphone, the new plan will be applied from the following month, and the packet flat rate and basic pack of the Mobile Basic Plan SS will be applied in the month of application. (The packet flat rate will be applied even if you did not use data communication before changing your phone model.)
- ※The monthly fee for the Basic Pack will not be charged from the date of your model change application until the end of the month.
