CMHK offers you all-rounded and hassle-free roaming experiences. No matter leisure travel or business trip, there is always one to meet your travel needs. We cater to all your needs, with an intimate 7x24 global roaming toll-free, and the leading roaming coverage in Hong Kong, we are a real roaming expert.

To provide a better roaming experience, starting from 1 March 2023 (HK Time 00:00), the full speed data roaming usage available for Zone B, C & D in Data Roaming Zone will increase from 500MB to 1GB, after which the capped speed will increase from 384kbps to 512kbps, and the charge will be adjusted to $68/day for Zone B, $98/day for Zone C and $198/day for Zone D.

Starting from the same day, the applicable destinations for Zone B, Zone C and Zone D will be changed as well, and Angola will be removed from Data Roaming Zone, the data usage will be charged at $0.1/KB. Please check the latest tariff of your destination before travelling. For details, please visit Data Roaming Zone.

Data Roaming Products

  • Day Pass NEW
    • Fixed full speed data per day
    • Flexible option on Days
  • GO! Pass
    • Average HK$9/day
    • Different full speed data choice


  • Data Roaming Zone
    • Capped daily charge
    • Coverage 233 destinations
  • Greater China, Asia & Global Package NEW
    • No Commitment period
    • Last for 30 days
  • Bay Area Package
    • For Mainland China and Macau
    • Light usage long validity
  • Flexi-up (for "Supreme" Plan only)
    • HK$78 up
    • Expand data coverage

Voice Roaming Products

  • Bay Area Voice Package

    For high call needs customer in Bay Area

    • HK$48 up/ month
    • Free incoming call in Mainland China, Hong Kong and Macau
    • Entitle 100 up Bay Area minutes
  • "Let's Talk"-Mainland China Voice Calling Package

    For customers with cross boarder call needs

    • Package fee $59 up
    • Free Call Receives in Guang Dong
    • 100 Mainland China minutes up


  • "Let's Talk"-Mainland China Voice Calling VAS

    For Mainland China travelers

    • Only $18/month
    • Make calls in Mainland China at flat-rate $0.65
  • "Let's Talk" –Greater China Voice Calling VAS

    For Supreme series service plan subscribers

    • Only $48/month
    • Make calls in Greater China region for as low as $0.65/minute

International Roaming Coverage and Tariff

CMHK 4G/5G service plan customers can enjoy quality communications services, including voice, SMS and data, in over 300 countries and destinations with applicable 4G/5G handset via designated roaming operators in below countries / destinations:

Popular Destinations:  Mainland China   Macau   Taiwan   Japan   Singapore   Thailand   United Kingdom   Malaysia

For other regions, please click here for details.

Starting from 21 December 2022, Cuba will be removed from Data Roaming Zone and data usage will be charged at $0.1/KB. From the same day onwards, calling local will be adjusted to $7.22 per minute and sending SMS will be adjusted to $4.60 per message in Cuba.

Roaming Support

IDD Service & International SMS

1-Card-Multi-Number Service

Other Roaming Service