| key specs |
| Strap Colour | Statement Black, Vintage Brown, Forest Green, Jet Black, Fiery Orange, and Classic Black | - |
| Display Size | 36mm | - |
| Strap Material | Leather | - |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Compatible OS | - | Android, iOS |
| general |
| Brand | Noise | Amazfit |
| Model | Halo Smartwatch | GTR 2e |
| Release date | February 25, 2023 | December 15, 2020 |
| Model Name | Halo | GTR 2e |
| Dial Colour | Black | Dolphin Grey, Ice Lake Green, Obsidian Black options |
| Dial Shape | Round | Round |
| Strap Colour | Statement Black, Vintage Brown, Forest Green, Jet Black, Fiery Orange, and Classic Black | - |
| Strap Material | Leather | - |
| Touchscreen | Yes | Yes |
| Water Resistant | IP68 | - |
| Dial Material | Metal | Aluminium Alloy |
| Size | - | Regular |
| Water Resistance Depth | - | 50 metres |
| product details |
| Sensor | Accelerometer, SpO2 sensor, Heart Rate tracker | Huami self-developed BioTracker PPG (support blood oxygen), acceleration sensor, gyroscope, 3-axis geomagnetic sensor, ambient light sensor, air pressure sensor, temperature sensor |
| Notification | Yes | Yes |
| Talk time | 1 days | - |
| Battery Life | 7 days | 24 |
| Rechargeable Battery | Yes | Yes |
| Compatible Device | - | Android, iOS |
| Charge Time | - | 2.5 hours |
| Charger Type | - | Magnetic |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | - | 5.0 |
| Other Connectivity Features | - | NFC |
| camera and display features |
| Display Resolution | 466x466 pixels | 454x454 |
| Display Size | 36mm | - |
| 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 | BioTracker 2 PPG, bioogical data sensor |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, IP68 Rating, Notifications, Phone Call, | - |
| Compass | - | Yes |
| Calendar | - | Yes |
| dimensions |
| Width | - | 46.5 |
| Height | - | 46.5 |
| Thickness | - | 10.8 |
| Weight (g) | - | 32.00 |
| platform and storage features |
| Compatible Operating System | - | Android, iOS |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |