3HK and CMHK are both mass-market operators, but they tend to win different searches. 3HK is strong when the question is maximum local data per dollar, especially through promotions and its value sub-brands. CMHK is strongest when the plan needs to double as a Hong Kong and Mainland China connection.
| Question | Lean 3HK | Lean CMHK |
|---|---|---|
| Main use | Local data value | China/GBA use |
| Budget angle | Promos and sub-brands | Bundles and cross-border add-ons |
| Best buyer | Hong Kong-only heavy data user | Frequent border-crosser |
Do not ignore the sub-brands
If you are comparing purely on price, include SoSIM and CUniq on the 3HK side and CMHK prepaid or promotional SIM-only deals on the CMHK side. The flagship operator brand is not always the cheapest way to use the same network.
Compare 3HK and CMHK plans →Frequently asked questions
Is 3HK cheaper than CMHK?
It depends on the current promotion and data tier. 3HK often competes aggressively on local data value, while CMHK can be better when China/GBA data is included.
Which should cross-border users pick?
Start with CMHK, then compare 3HK plans that explicitly include Mainland China or GBA data. Cross-border allowances matter more than the headline local-data number.