Amazfit GTR 3 vs Amazfit T-Rex Pro comparison
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| key specs |
| Strap Colour | Black | - |
| Display Size | 35mm | - |
| Compatible OS | Android, iOS | iOS, Android |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Silicone |
| general |
| Brand | Amazfit | Amazfit |
| Model | GTR 3 | T-Rex Pro |
| Release date | October 11, 2021 | March 23, 2021 |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | Yes | 10 ATM |
| Water Resistance Depth | 5 ATM | - |
| Dial Material | Aluminium | Polycarbonate |
| Ideal For | Unisex | Unisex |
| Strap Colour | Black | - |
| Dial Colour | Black | Desert Grey, Meteorite Black, Steel Blue |
| Model Name | - | Amazfit T-Rex Pro |
| Strap Material | - | Silicone |
| dimensions |
| Width | 45.8 | 47.7 |
| Height | 45.8 | 47.7 |
| Thickness | 10.8 | 13.5 |
| Weight (g) | 42.00 | 59.40 |
| product details |
| Sensor | Accelerometer Sensor, Barometer Sensor, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, SpO2 Sensor, Blood Pressure Monitor | Three-axis acceleration sensor, Heart Rate Sensor, BioTracker 2 PPG , ambient light sensor, Geomagnetic, three-axis gyroscope, barometric altimeter |
| Compatible Device | Android, iPhone | Android, iOS |
| Notification | Yes | Yes |
| Battery Type | Li-ion | - |
| Battery Life | 21 days | 18 days |
| Charge Time | - | 1.5 hours |
| Charger Type | - | Magnetic 2-pins Pogo Pin |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | 5.1 | 5.0 |
| GPS | Yes | Yes |
| Messaging Support | Yes | - |
| Third Party App Support | Yes | - |
| Wi-Fi | - | Yes |
| platform and storage features |
| Operating System | ZeppOS | RTOS |
| Compatible Operating System | Android, iOS | iOS, Android |
| camera and display features |
| Display Resolution | 454x454 | 320x360 |
| Display Size | 35mm | - |
| Display Type | AMOLED | AMOLED |
| Backlight Display | Yes | - |
| Scratch Resistant | - | Tempered Glass + anti-fingerprint coating |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Chronograph | Yes | - |
| Date & Time Display | Yes | Yes |
| Language | English | English |
| Number of Buttons | 2 | 4 |
| Other Fitness Features | 150 sports mode | 100+ sports modes |
| Other Watch Functions | - | Heart rate monitoring, sleep quality monitoring |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | - |
| Voice Control | Yes | - |
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