Bargain SIM・details

Call charges, SMS communication charges, options

Call charges/SMS communication charges

Information about call charges and SMS (a service that allows you to exchange messages using only a phone number) communication charges.

Learn more

Optional service fee

Click here for information on charges for various options and accessories such as unlimited Unlimited calls for 5 minutes, terminal guarantee, answering service, etc.

Learn more

Operation confirmation terminal

on your device
Let's check if SIM Card can be used!

In order to use J:COM 's SIM Card, you must check in advance whether the device (smartphone/tablet) you are currently using is compatible with J:COM 's SIM Card.

model SIM-free au docomo, SoftBank,
Y mobile, UQ mobile
iPhone 12
iphone 12 mini
iPhone 12 Pro
iPhone 12 Pro Max
Ready to use!
No need to unlock SIM!
Just replace SIM Card
Ready to use!
No need to unlock SIM!
Just replace SIM Card
SIM unlock is required.
Click here for how to unlock
iPhone SE (2nd generation)
iPhone 11
iPhone 11 Pro
iPhone 11 Pro Max
iPhone XR
iPhone XS
iPhone XS Max
iPhone X
iPhone 8
iPhone 8 Plus
iPhone 7
iPhone 7 Plus
SIM unlock is required.
Click here for how to unlock
iPhone SE (1st generation)
iPhone 6s
iPhone 6s Plus
iPhone 6
iPhone6 Plus
Not available

About data communication

Remaining data capacity
Carryover OK
*The remaining amount is valid until the end of the following month.
the missing data
Can be purchased online
The expiry date for additional data is
Purchase date + 90 days

Comfortable communication nationwide

Because it is an au line
available nationwide *1

Can be used nationwide because it is an au line

Comfortable data communication with 4G LTE.

4GLTE coverage area

with clear voice calls
easy to hear

It is easy to hear by clear sound quality call

It supports higher frequencies than conventional smartphones, and is easy to hear with clear voice.

Highly secure Wi-Fi
Free to use

Public wireless LAN (Wi-Fi) in the city can be used

As a perk, you can use highly secure public wireless LAN (Wi-Fi) for free. It also comes with VPN protection, so you can use free Wi-Fi with peace of mind. It's convenient because it saves on data charges when downloading large-volume apps on the go.

Apps that can use public wireless LAN (Wi-Fi)
"Giga elephant Wi-Fi"

tethering is
Free to use! *3

Tethering can be used for free!

Even if you don't have a mobile Wi-Fi router, you can use your PC or game console to connect to the Internet regardless of whether you're indoors or outdoors.

If you are considering signing up or adding services

Sign Up information

  • SIM Card is a "multi-cut SIM".
  1. Both voice calls and data communications can be used in au's 4G LTE area. 3G communication is not available. Even within the service area, communication may not be possible or the communication speed may decrease. In addition, it may not be possible to use the product even in places with a good view, such as high-rise buildings and condominiums. Check the au website for the latest area information. Communication speed is a best effort service and does not guarantee a constant speed. It varies depending on the usage environment.
  2. Calls between au VoLTE compatible models (within au's 4G LTE area) will be of high quality. In other cases, the call will be made with the sound quality equivalent to that of the conventional one. The actual voice quality will vary depending on the radio wave environment and line congestion. au VoLTE compatible models cannot use 3G communication in Japan.
  3. Data communication amount during tethering connection is counted as J:COM MOBILE communication amount.

[About the amount including tax]

  • Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.