| 功能 | CMHK | HKT | SmarTone | 3HK |
|---|---|---|---|---|
| 3G | ❌️ Closed | ✅ Yes Want to close | ⚠️ Closing 9 Oct | ✅ Yes |
| 4G, LTE-A | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| VoLTE | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| VoLTE Roaming | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| 5G NSA | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| 5G CA | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| 5G Standalone (SA) | ✅ Yes | ✅ Yes | ⏳️ Testing | ⏳️ Testing |
| 5G SA Roaming | ✅ Yes Mainland China, Macau iPhone not supported | ❌️ No | ❌️ No | --- |
| VoNR | ✅ Yes Android only | ✅ Yes Android, iOS 27 | ❌️ No | --- |
| 5G-A (5.5G) | ✅ Yes, VAS | ⏳️ Testing | ⏳️ Testing | ❌️ No 3hk 5.5G not 5G-A |
Roaming Service Availability depends on region and parterned networks.