4G/3G Japan Data Prepaid SIM Card
4G/3G Japan 7-day Data Prepaid SIM Card
Price $288 OnlinePrice $162
4G/3G Japan 7-day Data Prepaid SIM Card
  • Service is valid from the day upon activation to the 7th day 23:59 (Hong Kong time)3,4,6,7
  • Provides Unlimited 4G/3G mobile data which can be consumed in both Japan and Hong Kong
  • Registration not required. For your instant usage upon purchase
  • Allowed to connect to any social network platform and Hong Kong website
  • Tethering is supported in Japan
Note: 4G network is enabled for Japan Data Prepaid SIM Cards sold via CMHK shops/ CMHK online shop from 1st June 2018, 4G network is also enabled for 3G Japan Data Prepaid SIM Cards activated from 1st June 2018.
Starter Pack
Face Value Suggested Retail Price Validity Period
$288 $218 Service is valid from the day upon activation to the 7th day 23:59 (Hong Kong time)2
  1. Mobile data service will be effective upon SIM activation. $288 stored value will be deducted accordingly.
  2. Subject to the expiry date as printed on the SIM Cardholder, mobile data service is valid from the day upon activation to the 7th day 23:59 (Hong Kong time).


Refill Amount and Validity Period

This Card is for one-off use only. Refill is not applicable.

Services & Charges

4G/3G Japan & Hong Kong Data Services3,4,5,6,7,8

Total Data Usage Designated Operator Charges
Unlimited Japan: Softbank (Handset display:44020/J-phone/Vodafone JP/Softbank)
$288 stored value will be deducted upon SIM activation.
Hong Kong: CMHK
3. Mobile data service is only accessible in Japan and Hong Kong, but not in other areas.
4. Designated operators (Japan: Softbank(Handset display︰44020/J-phone/Vodafone JP/Softbank) ; Hong Kong: CMHK) must be adopted when using this Card.CMHK reserves its absolute right to change the operator at any time without prior notice to the Customer.
5. Tethering is supported in Japan.
6. Actual data transmission speed may vary due to many factors, including but not limited to: network traffic conditions, handset models, handset settings (both hardware and software), uploaded/downloaded content and other external factors, etc.
7. When customer is located out of 4G coverage, CMHK will provide service via 3G/2G EDGE network within 3G/2G network coverage.
8. Only mobile data service is supported, neither voice, SMS nor value-added services.


Distribution Channels

Prepaid SIM Card is available all over Hong Kong, including MyLinkCMHK Online Shop, CMHK Shops, Customer Centre and following Convenience Shops to purchase. 

7-Eleven 7-11


For details locations, please contact our 24-hour Customer Care Hotline 29458888.

Handset Setting (Mobile Data)

Please click here and refer to the related handset APN setting for mobile data service.

Terms & Conditions
  1. The use of individual service shall be subject to such terms and conditions as stated on the relevant Prepaid SIM Card starter pack or on the relevant user guide.
  2. Once sold, this Prepaid SIM Card is non-refundable and non-returnable.
  3. This Prepaid SIM Card should be activated before the stipulated expiry date, otherwise it will be invalid automatically.
  4. Where this Prepaid SIM Card is expired, or where service has been terminated due to whatever reasons, the remaining data usage shall be non-refundable and non-transferable.
  5. CMHK will not be liable for any damages, however arising, of this Prepaid SIM Card or responsible for repairing and making good therefor.
  6. The mobile number of this Prepaid SIM Card is assigned randomly and Customer cannot return, choose or request to change to other mobile numbers. Customer will not be able to keep the allocated mobile number once this Prepaid SIM Card has expired, or where its service has been terminated due to whatever reasons.
  7. Calculation of data usage duration and volume is based on the network report of CMHK. In case of dispute, the records of CMHK are conclusive and binding. All calculations are subject to such prevailing rates or tariff as imposed by CMHK from time to time.
  8. CMHK is entitled at their full discretion to temporarily suspend any or all of the Services without notice to the Customer for the purpose of preventing any improper or abnormal use of CMHK's network or resources, fraudulent or deceptive acts until CMHK is satisfied that the Customer has ceased such acts or the relevant investigation has been completed. CMHK may assess abnormal usage based on comparisons to the usage patterns and levels of CMHK’s other customers, and/or based on whether such usage level is considered to have affected our other customers' ability to optimally use the same network or service.
  9. CMHK reserves its absolute right to change the terms and conditions relating to the use of this Prepaid SIM Card including but not limited to the data usage rate at any time without prior notice to or consent from the Customer.
  10. The above information and rates are subject to change without prior notice.
  11. Any change or amendment will be announced on CMHK website.
  12. For the details of the Terms and Conditions, please refer to http://www.hk.chinamobile.com/en/corporate_information/Customer_Service/contract_terms_conditions/customer-support-t-n-c.html.


User Guide

Click here to view the details of user guide.