In depth comparison and review of Amazfit T-Rex Pro and Xiaomi Redmi Watch 3. 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 Redmi Watch 3 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS 10 or later, Android 5.0 (Lollipop) or later | Android 6.0 (Marshmallow) or later, iOS 12 or later |
| Activity/Sport | Multisport | - |
| Wearing Style | Watch style | Watch style |
| Width | - | 36.56 mm |
| Height | - | 42.58 mm |
| Depth | - | 9.99 mm |
| Weight | - | 37 g |
| Body Details | With band: 59.4 g | - |
| Body Material | Polycarbonate | - |
| Protection | Water-resistant, temperature protection, salt fog protection, freezeproof | Water-resistant |
| Colours | Desert grey | Elegant black |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Sensors | Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor | Accelerometer, geomagnetic sensor, optical heart sensor, blood oxygen 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, breath, blood pressure, menstrual cycle |
| Modes | - | 100+ Workout modes, do-not-disturb mode |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, event reminders | Find phone function, answering a call, phone unlocking, automatic exercise recognition, SOS call, auto pause, music playback control, weather information, personalised Watch Faces, stopwatch timer, 10 preloaded running courses, brightness: 600 nits |
| Notifications | SMS, incoming calls, applications | SMS, Email, social apps, calls, sedentary |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Payment Technology | - | Alipay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Xiao Ai |
| CELLULAR | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Messaging Services | - |
|---|
| CONNECTIVITY | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Wireless Interface | Bluetooth 5.0 | NFC, Bluetooth 5.2 |
|---|
| DISPLAY | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Type | AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 360 x 360 pixels | 390 x 450 pixels |
| Screen Size | 1.3" | 1.75" |
| Pixel Density | - | 341 ppi |
| Screen Protection | Tempered glass | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Case Size | - | 42 mm |
|---|---|---|
| Case Shape | Round | - |
| Case Details | Meteorite black | Steel blue | - |
| BAND | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | - | 135-200 mm |
| Clasp Type | Buckle | Pin buckle |
| Band Material | Silicone rubber | - |
| Band Colour | Meteorite black | Blue steel | - |
| BATTERY | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Technology | Lithium polymer | Lithium Ion |
|---|---|---|
| Capacity | 390 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 Heavy usage - up to 7 days GPS + HR mode (Continuous reception) - up to 18 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 1.5 hour(s) | - |
| MISCELLANEOUS | Amazfit T-Rex Pro | Xiaomi Redmi Watch 3 |
|---|
| Included Accessories | Magnetic charging dock | Magnetic charging cable |
|---|---|---|
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 70 °C | - |
| Min Operating Temperature | -40 °C | - |
| Manufacturer Model Number | - | M2215W1 |
| Warranty | 1-year warranty | - |
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