| key specs |
| Strap Colour | Obsidian Black | Polar Night Black, Moon Grey, Deep Sea Blue, Metallic Black, Onyx Black, Pebble Grey |
| Compatible OS | Android, iOS | Android, iOS |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Strap Material | - | Leather |
| general |
| Brand | Amazfit | Amazfit |
| Model | GTR 2 | Zepp E (Round) |
| Release date | September 22, 2020 | August 25, 2020 |
| Model Name | GTR 2 | Zepp E |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Water Resistant | 5 ATM | 5ATM |
| Dial Material | Aluminium, Stainless Steel | Stainless Steel |
| Strap Colour | Obsidian Black | Polar Night Black, Moon Grey, Deep Sea Blue, Metallic Black, Onyx Black, Pebble Grey |
| Dial Colour | Obsidian Black, Silver | - |
| Strap Material | - | Leather |
| Interchangeable Strap | - | Yes |
| dimensions |
| Width | 46.4 | 42.2 |
| Height | 46.4 | 42.2 |
| Thickness | 10.7 | 9.1 |
| Weight (g) | 39.00 | 32.00 |
| product details |
| Sensor | Air pressure, Accelerometer, Gyroscope, 3-axis Geomagnetic sensor, ambient light sensor | Acceleration Sensor, Geomagnetic Sensor, Ambient Light Sensor, Linear Vibration Motor |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Yes |
| Battery Life | 14 | 7 days |
| Charge Time | 2.5 hours | 2 hours |
| Charger Type | Magnetic | - |
| Rechargeable Battery | Yes | Yes |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Wi-Fi | Yes | - |
| Other Connectivity Features | NFC, Wi-Fi | - |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Resolution | 454x454 | 416×416 |
| Display Type | AMOLED | AMOLED |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 | 1 |
| Other Fitness Features | BioTracker 2 PPG, bioogical data sensor | 11 sports modes |
| Other Watch Functions | - | Sleep monitor, Alarms, SpO2 sensor |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |