| key specs |
| Strap Colour | Statement Black, Vintage Brown, Forest Green, Jet Black, Fiery Orange, and Classic Black | Obsidian Black |
| Display Size | 36mm | 35mm |
| Strap Material | Leather | Leather |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Compatible OS | - | Android, iOS |
| general |
| Brand | Noise | Huawei |
| Model | Halo Smartwatch | GT 2 Pro ECG |
| Release date | February 25, 2023 | July 29, 2021 |
| Model Name | Halo | Watch GT 2 Pro ECG |
| Dial Colour | Black | - |
| Dial Shape | Round | Round |
| Strap Colour | Statement Black, Vintage Brown, Forest Green, Jet Black, Fiery Orange, and Classic Black | Obsidian Black |
| Strap Material | Leather | Leather |
| Touchscreen | Yes | Yes |
| Water Resistant | IP68 | 5ATM |
| Dial Material | Metal | Titanium |
| Size | - | Regular |
| Water Resistance Depth | - | 50 |
| product details |
| Sensor | Accelerometer, SpO2 sensor, Heart Rate tracker | Accelerometer, gyroscope, geomagnetic sensor, optical heart rate sensor, ambient light sensor, barometric pressure sensor, and capacitive sensor |
| Notification | Yes | Yes |
| Talk time | 1 days | - |
| Battery Life | 7 days | 14 |
| Rechargeable Battery | Yes | Yes |
| Compatible Device | - | Android, iOS |
| Charger Type | - | Wireless |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | - | 5.1 |
| Wi-Fi | - | Yes |
| GPS | - | Yes |
| Messaging Support | - | Yes |
| camera and display features |
| Display Resolution | 466x466 pixels | 454x454 |
| Display Size | 36mm | 35mm |
| Display Type | AMOLED | AMOLED |
| Other Display Features | Always-on Display | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 | 2 |
| Other Fitness Features | Activity tracker, multiple sports mode tracking | 100+ sports modes, Automatic activity tracker |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, IP68 Rating, Notifications, Phone Call, | ECG |
| Altimeter | - | Yes |
| Compass | - | Yes |
| dimensions |
| Width | - | 46.7 |
| Height | - | 46.7 |
| Thickness | - | 11.4 |
| Weight (g) | - | 52.00 |
| platform and storage features |
| Compatible Operating System | - | Android, iOS |
| Processor Name | - | Kirin A1 |
| Internal Memory | - | 4GB |
| audio and video features |
| Speaker | - | Yes |
| Gesture Control | - | Yes |
| Microphone | - | Yes |