This page compares 3HK and CMHK only, using GoPlan Production data checked on 2026-09-21. It is built for readers who have already narrowed the choice to these two providers and now need to match a plan to how they actually use a phone in Hong Kong.
Start With Your User Type, Not the Brand
The same two providers can suit very different people. A single-line budget user, a youth aged 18-29, a senior, a family sharing data, and a frequent Greater Bay Area traveller each weigh monthly fee, data allowance, contract and eligibility differently.
- Single-line personal users: compare monthly fee against local full-speed data.
- Youth aged 18-29: check whether a youth-targeted plan exists and what it includes.
- Seniors: check senior-targeted plans and their data terms.
- Families: compare shared data allowance and number of lines.
- Greater Bay Area travellers: compare Greater Bay Area data allowance.
Monthly Fee and Contract Term: Entry to Mid-Tier
3HK lists 33 plans from HKD 58 to HKD 394, with contract terms of 24, 28, 30 and 36 months. CMHK lists 22 plans from HKD 98 to HKD 399: 21 use 24-month contracts and one is a no-contract option. The 28-month and 30-month terms are not attributed to any specific plan shown below.
| Item | 3HK | CMHK |
|---|---|---|
| Plans listed | 33 | 22 |
| Monthly fee range (HKD) | 58-394 | 98-399 |
| Contract terms listed | 24, 28, 30, 36 months | 0, 24 months |
| Network types listed | 4G: 4, 5G: 28, one not listed | 5G: 22 |
Local Full-Speed Data, Unlimited vs Hard Cap, and Post-FUP Speed
Among the representative plans, 3HK entries are unlimited after allowance, with post-FUP speeds of 128 Kbps or 1 Mbps. CMHK's HKD 98 no-contract 5G plan is not unlimited after its 30GB allowance, and its post-FUP speed is not listed. Other CMHK representative plans show 1 Mbps or 5 Mbps after FUP.
4G and 5G: What Each Provider Lists
3HK lists 4G and 5G plans, while all 22 CMHK plans in this dataset are listed as 5G. A 4G plan is not automatically worse for every user; it may simply be the entry option at a lower monthly fee.
Greater Bay Area and Cross-Border Data
Greater Bay Area data allowances differ sharply. CMHK's 5G 中港共用 50GB 優惠 carries 50GB, while 3HK's 4.5G 全速無限任用計劃 + 每月 10GB 內地及澳門數據 carries 10GB. Roaming data outside these allowances is not listed for any representative plan.
Eligibility and Target Segments: Youth, Seniors, Families, Port-In
CMHK lists youth-targeted plans for ages 18-29 and port-in or renewal eligibility on several plans. 3HK lists one senior-targeted plan. Family shared plans exist on both sides, with different data allowances and line counts.
- Youth: CMHK lists youth plans for 18-29; 3HK youth eligibility is not listed.
- Seniors: 3HK lists one senior-targeted plan; CMHK senior targeting is not listed.
- Families: 3HK 5G 家庭共享計劃 126GB · 2 張卡; CMHK 5G 家庭共享計劃 200GB（2–4 咭）.
- Port-in and renewal: CMHK lists these on some plans; 3HK port-in eligibility is not listed.
Representative Plan Comparison
The table below compares representative plans across monthly fee, network, local full-speed data, unlimited status, post-FUP speed, Greater Bay Area data, contract term, lines and target segment.
| Provider | Plan | Fee (HKD) | Network | Local data (GB) | Unlimited | Post-FUP | GBA (GB) | Contract | Lines | Segment |
|---|---|---|---|---|---|---|---|---|---|---|
| 3HK | 4.5G 42M 計劃 10GB · 36 個月 | 58 | 4G | 10 | Yes | 128 Kbps | 2 | 36 months | 1 | Not listed |
| 3HK | 5G 手機計劃 15GB | 66 | 5G | 15 | Yes | 1 Mbps | 0.5 | 36 months | 1 | Not listed |
| 3HK | 5G 手機計劃 30GB · 24 個月 | 88 | 5G | 30 | Yes | 1 Mbps | 2 | 24 months | 1 | Not listed |
| 3HK | 5G 手機計劃 45GB · 36 個月 | 88 | 5G | 45 | Yes | 1 Mbps | 2 | 36 months | 1 | Not listed |
| 3HK | 4.5G 全速無限任用計劃 + 每月 10GB 內地及澳門數據 | 116 | 4G | Not listed | Yes | Not listed | 10 | 24 months | 1 | Senior |
| 3HK | 5G 家庭共享計劃 126GB · 2 張卡 | 268 | 5G | 126 | Yes | 1 Mbps | 3 | 24 months | 2 | Not listed |
| CMHK | 5G 極速優惠計劃 | 98 | 5G | 30 | No | Not listed | 2 | No contract | 1 | Not listed |
| CMHK | 5G 60GB 轉台續約優惠 | 98 | 5G | 60 | Yes | 1 Mbps | 3 | 24 months | 1 | Port-in, renewal |
| CMHK | 5G 青年人 60GB 計劃（18-29 歲） | 98 | 5G | 60 | Yes | 1 Mbps | 3 | 24 months | 1 | Youth, 18-29 |
| CMHK | 5G 100GB 優惠（免行政費） | 129 | 5G | 100 | Yes | 5 Mbps | 5 | 24 months | 1 | Not listed |
| CMHK | 5G 中港共用 50GB 優惠 | 149 | 5G | 50 | Yes | 1 Mbps | 50 | 24 months | 1 | Not listed |
| CMHK | 5G 家庭共享計劃 200GB（2–4 咭） | 219 | 5G | 200 | Yes | 5 Mbps | 6 | 24 months | 2 | Not listed |
Match the Plan to Your Scenario
Use the scenario table to shortlist, then confirm the current terms with the provider. No single provider wins across every scenario.
| Scenario | 3HK option | CMHK option | Watch |
|---|---|---|---|
| Low-usage single line | 4.5G 42M 計劃 10GB · 36 個月 | 5G 極速優惠計劃 (HK$98, no contract) | Hard cap and contract flexibility vs unlimited |
| High-usage single line | 5G 手機計劃 45GB · 36 個月 | 5G 100GB 優惠（免行政費） | Post-FUP speed |
| Family multi-line | 5G 家庭共享計劃 126GB · 2 張卡 | 5G 家庭共享計劃 200GB（2–4 咭） | Lines and shared data |
| Frequent GBA user | 4.5G 全速無限任用計劃 + 每月 10GB 內地及澳門數據 | 5G 中港共用 50GB 優惠 | GBA allowance |
| Youth 18-29 | Not listed | 5G 青年人 60GB 計劃（18-29 歲） | Age eligibility |
| Senior | 4.5G 全速無限任用計劃 + 每月 10GB 內地及澳門數據 | Not listed | Target segment |
Next Step: Compare 3HK and CMHK Plans on GoPlan
Shortlist by monthly fee, data allowance, contract term and Greater Bay Area data, then check the live terms before you commit. GoPlan lists both providers side by side.