| key specs |
| Dial Shape | Round | Round |
| Display Type | AMOLED | AMOLED |
| Ideal For | Unisex | Unisex |
| Compatible OS | - | iOS, Android |
| Strap Material | - | Silicone |
| general |
| Brand | Xiaomi | Amazfit |
| Model | Watch S3 | T-Rex Pro |
| Release date | February 25, 2024 | March 23, 2021 |
| Model Number | M2323W1 | - |
| Model Name | Xiaomi Watch S3 | Amazfit T-Rex Pro |
| Dial Colour | Black | Desert Grey, Meteorite Black, Steel Blue |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | 1.43 | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | 5 ATM | 10 ATM |
| Usage | Regular | - |
| Dial Material | Stainless Steel | Polycarbonate |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Silicone |
| dimensions |
| Width | 47 | 47.7 |
| Height | 47 | 47.7 |
| Thickness | 12 | 13.5 |
| Weight (g) | 44.00 | 59.40 |
| product details |
| Sensor | Heart rate sensor (with blood oxygen sensor), accelerometer, gyroscope, electronic compass, barometer sensor, ambient light sensor, hall sensor | Three-axis acceleration sensor, Heart Rate Sensor, BioTracker 2 PPG , ambient light sensor, Geomagnetic, three-axis gyroscope, barometric altimeter |
| Battery Type | 486mAh | - |
| Battery Life | 15 days | 18 days |
| Rechargeable Battery | Yes | Yes |
| Compatible Device | - | Android, iOS |
| Notification | - | Yes |
| Charge Time | - | 1.5 hours |
| Charger Type | - | Magnetic 2-pins Pogo Pin |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.0 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| camera and display features |
| Display Resolution | 466 x 466 | 320x360 |
| Display Type | AMOLED | AMOLED |
| Scratch Resistant | - | Tempered Glass + anti-fingerprint coating |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English, German, Italian, French, Spanish, Dutch, Portuguese, Turkish, Arabic, Polish, Ukrainian, Romanian, Czech, Slovak, Greek, Hungarian, Hebrew, Russian, Thai, Vietnamese, Brazilian Portuguese, Indonesian, Swedish, Finnish, Norwegian, Danish, Japanese, Korean, Traditional Chinese | English |
| Calorie Count | - | Yes |
| Altimeter | - | Yes |
| Number of Buttons | - | 4 |
| Other Fitness Features | - | 100+ sports modes |
| Other Watch Functions | - | Heart rate monitoring, sleep quality monitoring |
| platform and storage features |
| Operating System | - | RTOS |
| Compatible Operating System | - | iOS, Android |
| audio and video features |
| Speaker | - | Yes |