In depth comparison and review of Amazfit T-Rex Pro and Xiaomi Watch S1 Active. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS 10 or later, Android 5.0 (Lollipop) or later | iOS 10 or later, Android 6.0 (Marshmallow) or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Body Details | With band: 59.4 g | Case only: 36.3 g |
| Body Material | Polycarbonate | Glass fibre reinforced polyamide |
| Protection | Water-resistant, temperature protection, salt fog protection, freezeproof | Water-resistant |
| Colours | Desert grey | Ocean blue | Moon white |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Sensors | Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor | Accelerometer, ambient light sensor, barometer, SpO2 sensor, geomagnetic sensor, optical heart sensor, PPG sensor, gyroscope |
|---|---|---|
| Tracking Data | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation | Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level |
| Modes | - | 117 fitness modes, 19 professional modes |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, event reminders | Call handling, find phone function, flashlight, automatic exercise recognition, breathing training function, music playback control, weather information, customisable watch faces, Health index, Women's health |
| Notifications | SMS, incoming calls, applications | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Wireless Interface | Bluetooth 5.0 | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Type | AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 360 x 360 pixels | 466 x 466 pixels |
| Screen Size | 1.3" | 1.43" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Tempered glass | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push buttons |
|---|
| CASE | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Bezel | - | Metal |
| Case Details | Meteorite black | Steel blue | Blue | Silver | Space black |
| BAND | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | 160-220 mm |
| Changeable | - | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone rubber | TPU |
| Band Colour | Meteorite black | Blue steel | Blue | White | Black |
| BATTERY | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Capacity | 390 mAh | 470 mAh |
| Battery Life | 18 day(s) | 12 day(s) |
| Battery Life Details | Typical usage - up to 18 days Heavy usage - up to 9 days GPS mode - up to 40 hour(s) |
Typical usage - up to 12 days Power saving mode - up to 24 days GPS mode - up to 30 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 1.5 hour(s) | 2.5 hour(s) |
| MISCELLANEOUS | Amazfit T-Rex Pro | Xiaomi Watch S1 Active |
|---|
| Included Accessories | Magnetic charging dock | Magnetic charging cable |
|---|---|---|
| Compliant Standards | - | GB/T 30106-2013 |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 70 °C | 45 °C |
| Min Operating Temperature | -40 °C | -10 °C |
| Warranty | 1-year warranty | 2-year warranty |
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