eSIM

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The amount may differ from the invoice amount due to the calculation of consumption tax.

We have released a video explaining how to set up eSIM. View details

What is eSIM?

An eSIM is a SIM card that is pre-installed in a smartphone. If your smartphone supports eSIM, you can use the line simply by signing up and setting it up, without having to insert a SIM card into the device like with a standard SIM.

eSIM関連のお手続き

Supported plans/services

Simple3 S/M/L *1 Service List *2

*1 Also applies to those who are subscribed to Simple2 S/M/L, Simple S/M/L, Smartphone Plan, and Smartphone Basic Plan.
*2 Please read "SIM card" as "eSIM" on this page.

  • *We do not guarantee that the service will work if you use multiple lines at the same time, such as an eSIM and a USIM card.
  • * When using the dual SIM function, if you set a data-only SIM that cannot be used for voice calls as the line for "mobile data communication," you may not be able to make calls to emergency services (110/118/119).

[If you applied through the online store] How to set up

How to set it up

About application

Your identity verification documents

When applying, please prepare one of the following identification documents in advance. If you apply through the online store, you will be asked to take a photo of your document using your smartphone camera, following the instructions.

  • *If someone other than the contract holder (such as a family member) will be using the service, please also prepare an identification document that can verify the user's age, such as a student ID or handbook.

Japanese nationals

Driver’s license
What to upload
  • - The front and back of a driver's license that meets the following conditions
Driver's license (front)

Please note that if the name or address you provide differs from the information on your application, your application will be canceled.

  • ① The ticket must be within its validity period.
  • ② The name, address, and date of birth entered when applying must match the information on your driver's license.
  • ③ The photograph must clearly show your face (if your face cannot be seen due to darkening or masking, it is not acceptable)
  • ④ Must be issued by the Japanese government (international licenses are not accepted)
Driver's license (back side)

Driving record certificate
What to upload
  • - The front and back of a driving history certificate that meets the following conditions
Driving history certificate (front)

Please note that if the name or address you provide differs from the information on your application, your application will be canceled.

  • ① Driving history certificate (issued after April 1, 2012)
  • ② The name, address, and date of birth entered at the time of application must match the information on the "Driving History Certificate."
  • ③ The photograph must clearly show your face (if your face cannot be seen due to darkening or masking, it is not acceptable)
  • ④ Must be issued by the Japanese government (international licenses are not accepted)
Driving history certificate (back side)

My Number Card
What to upload
  • ・ The front and back of a My Number card that meets the following conditions
    • *The back of the My Number Card and notification card will not be accepted.
My Number Card

Please note that if the name or address you provide differs from the information on your application, your application will be canceled.

  • ① The ticket must be within its validity period.
  • ② The name, address, and date of birth entered when applying must match the information on your My Number Card.
  • ③ The photograph must clearly show your face (if your face cannot be seen due to darkening or masking, it is not acceptable)
Student ID card/student handbook*Users (family members) only
What to upload
  • ・ Student ID or student handbook that meets the following conditions
Student ID/Student Handbook (front)

  • ① From the school you are currently attending
  • ② A page showing your name and date of birth

Non-Japanese nationals

If your status of residence is "permanent resident"
Residence card
What to upload
  • ・A residence card that meets the following conditions
Residence card

Please note that if the name or address you provide differs from the information on your application, your application will be canceled.

  • ① The ticket must be within its validity period.
  • ② The name, address, and date of birth entered when applying must match the information on your residence card.
  • ③ The photograph must clearly show your face (if your face cannot be seen due to darkening or masking, it is not acceptable)
If your status of residence is "Special Permanent Resident"
Special permanent residence certificate
What to upload
  • ・Special permanent resident certificate that meets the following conditions
Special permanent residence certificate

Please note that if the name or address you provide differs from the information on your application, your application will be canceled.

  • ① The ticket must be within its validity period.
  • ② The name, address, and date of birth entered at the time of application must match the information on the Special Permanent Resident Certificate.
  • ③ The photograph must clearly show your face (if your face cannot be seen due to darkening or masking, it is not acceptable)

When used by someone other than the contract holder (family member)

利用する方（ご家族）の姓が契約者と異なる場合、
利用する方（ご家族）の本人確認書類（補助書類不要）に加え以下家族証明のための確認書類をご準備ください。

Verification documents for family proof
What to upload

Verification documents for family proof

利用する方（ご家族）の姓が契約者と異なる場合、最新の情報が記載された以下のいずれかを一緒にアップロードする必要があります。

Family register

  • ① Issued within the last three months

Certificate of residence (original)

  • ① The name must be the same as the name on your identity verification document
  • ② The "Individual Number (My Number)" and "Gender" must be covered with plain paper or other material (if the relevant sections are not covered, your application will be canceled).
  • ③ The certificate must be issued within the last three months.
  • ④ Your current address must be listed.
  • *We also accept "copies of resident registration certificates" and "wide-area issued resident registration certificates (copies of resident registration certificates issued by a municipality other than the one in which the resident registration is registered)."
  • * In the case of a "copy of resident registration card" or "wide-area issued resident registration card," in addition to the above points, please cover the "permanent domicile" with plain paper or something similar.

Important points to note when uploading family certificate documents

Please take the images you upload using a smartphone or digital camera.

Good photography techniques

  • ・Lean the camera against a wall or other surface to take a photo
  • ・Shoot in a well-lit place
  • ・Focus
  • ・ Fix the armpits, tighten the armpits

Images such as the following may be rejected or may take a long time to be reviewed.

Photos that are not allowed

blurred

The light is reflecting

There is a shadow

The target is small

How to apply

Please apply at your nearest store, dealer, or online store.

  • *Only customers who purchase a new smartphone as a set can Changing devices to an eSIM from the online store.
Shops & RetailersOnline Store
Product List

Compatible Devices

Services provided by companies other than Y!mobile have not been verified. Please check for yourself.
Please note that we cannot be held responsible for any issues that may arise from using Y!mobile 's eSIM with other companies' products, except in cases of willful misconduct or gross negligence on our part.
You can check Y!mobile SIM-compatible models by searching by model name or carrier.

  • *"OS" is the OS version at the time of operation confirmation.
  • * A connection record indicates that the function has been used at least once on the device under certain conditions. Also, a connection record does not guarantee that all operations will work.
  • *If your device does not support SoftBank 's main frequencies, it may be difficult to get a signal depending on the location. Please check with each sales company for compatibility.
  • *Models sold overseas have not been verified.
  • * SMS and MMS (@ymobile.ne.jp) cannot be sent or received on iPad (only some SMS from Y!mobile can be received). Y!moble mail (@yahoo.ne.jp) can be sent and received.

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Purchase an eSIM here
  • *Only customers who purchase a new smartphone as a set can Changing devices to an eSIM from the online store.

Precautions when using mobile phones sold by companies other than Y!mobile

  • ●Products that have not been unlocked cannot be used.
  • ●We may restrict the use of communication services for smartphones that have been fraudulently contracted or obtained illegally.
  • ●We cannot guarantee the operation of all Y!mobile services, including voice calls, SMS, email (MMS), packet communication, and additional functions such as tethering.
  • ●Monthly fees will be charged for services and content provided by Y!mobile even if you are not able to use them.
    Location navigation, Smartphone Basic Pack-S, etc.
  • ●Charges will still be incurred even if you are unable to use services purchased for a fee through applications downloaded from Google Play™ or other sites.
  • ●When using voicemail on a mobile phone sold by a company other than Y!mobile, you may need to set up a forwarding phone number.Please check here for details.
  • ●"Simple3 S /M/L" and "Simple2 S /M/L" customers who wish to use voicemail or call forwarding must subscribe to "Voicemail Plus."
  • ●It can be used in Y!mobile service area. The maximum service area is the area where it can be used.
    [5G] 3.7GHz3.7GHz、700MHz、1.7GHz、3.4GHz、28GHz
    [4G] 2.5GHz2.5GHz、2.1GHz2.1GHz、1.7GHz1.7GHz、900MHz900MHz
    High-speed, large-capacity 5G (new frequency) is available in limited areas. Please check the applicable area carefully before signing up.
    The service area varies depending on the communication method and frequency supported by your device.
    Depending on the model, you may not be able to use the available communication method or frequency even if it matches.
    For the specifications of your mobile phone, please contact your mobile phone retailer.

Communication restrictions

We may limit communication speeds for customers who use large volumes of data over a certain period of time.
In addition, to provide better network quality, traffic information is collected, analyzed, and stored for each communication.
Please note that we may impose restrictions on communications as specified separately.(For more details, please click here)

A Note About Automatic Communications

Depending on the model you use, communication charges may be incurred if the device automatically communicates.
For detailed product specifications, please contact the company that sold you your mobile phone.

  • ※Please note that the handling office varies depending on the business operator.

Regarding repairs/after-sales service

  • ●Y!mobile cannot provide after-sales services such as accepting repairs or handling of mobile phones sold by other companies, or answering questions about combining them with Y!mobile 's eSIM.
    For matters regarding mobile phones sold by companies other than Y!mobile, please contact the company that sold you the mobile phone.
  • ※Please note that the handling office varies depending on the business operator.
  • ●If you delete your eSIM profile, or if your device is lost or broken, you will need to reissue your eSIM profile. Reissuing an eSIM profile will incur an eSIM reissue fee.
    If you apply for eSIM reissue through My Y!mobile, there will be no handling fee.
  • ※If you are unable to log in to My Y!mobile using line authentication due to reasons such as deleting your profile or losing your device, you will need to go to a store and incur an administrative fee.

Regarding certification of technical standards for mobile phones

If you use a mobile phone sold by another company with Y!mobile 's eSIM, please make sure that the mobile phone complies with laws and regulations, including technical standards compliance certification.

  • ●Mobile phones with the "Technical Conformity" mark are compliant with the law. For details, please refer to the Ministry of Internal Affairs and Communications' Home page Please check the following. Even if a device does not have a technical conformity mark, if you are a contract holder with an overseas telecommunications carrier that has an international roaming agreement with a Japanese telecommunications carrier and you are using a mobile phone that can be used under the international roaming agreement in Japan, you do not need to undergo an inspection when connecting to our line.
  • ●If we determine that you are violating laws and regulations, we may refuse to allow you to connect.
  • ●When using Y!mobile eSIM, you may not be able to use some services that use only communication methods different from those provided by our company.

Disclaimer

We are not responsible for any issues that may arise from using a mobile phone sold by another company with Y!mobile 's eSIM.

To purchase an eSIM
 Here How to use
 Here
  • *Only customers who purchase a new smartphone as a set can Changing devices to an eSIM from the online store.

Related information

Click here for information on SIM contracts

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