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China Unicom - 3Days Greater Bay Area (Guangdong,HK & Macau) 4G/3G Unlimited Data SIM Card (Expiry Date: 31/12/2022)

China Unicom - 3Days Greater Bay Area (Guangdong,HK & Macau) 4G/3G Unlimited Data SIM Card (Expiry Date: 31/12/2022)

- 3 days of unlimited data usage.
- Support mobile hotspot data sharing.
- No registration is required, please turn on the [Data Roaming] function of your mobile phone when using it.

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Coverage area:
Mainland, Hong Kong, Macau

Data is valid for 3 days:
The SIM card is valid for a maximum of 3 days from the activation date.
Buy this card via this website today Last activation date is 31/12/2022

About: Extending the Activation Period

  • Due to the impact of the epidemic, China Unicom (Hong Kong) has extended the activation period of its roaming data card products: [31/03/2021 to 31/03/2022]
    ※Note: Since the official event will be postponed from time to time, the event period marked on the sticker attached to the package at the factory may be different from the content, please prevail.
  • If you have any questions, please contact customer service.


1. If IOS device has installed other APN profile, Sim card will be Failure to use, about profile that you can check it in General setting.

2. before turn on 【Data Roaming】 function, please reconfirm all sim has clean expect this Sim card.

3. if you only received network but cannot use data, please check your APN setting.

⚠ Precautions ⚠

  • This SIM card cannot be reloaded at this time
  • This card only provides mobile data services and does not include any voice services.
  • The data sharing function is only applicable to the high-speed data part, and the data cannot be shared after the speed limit.
  • Internet speed may vary depending on location, surrounding environment, time of use, and device impact.
  • Please keep the complete Sim card body and packaging for future inquiries.
This card only provides mobile data services in the Greater Bay Area:

  • 4G unlimited data usage (when the total data usage in the Greater Bay Area reaches the "fair usage data usage limit" of 4GB, customers can still use mobile data services, But its data transfer speed (upload and download) will be slowed down to 256kbps,
    and cannot be used for tethering and peer-to-peer services.
  • For details, please refer to the Fair Use Policy of China Unicom (Hong Kong) Operations Co., Ltd. )

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