In depth comparison and review of Amazfit T-Rex Pro and Polar Grit X Pro. 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 | Polar Grit X Pro |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS 10 or later, Android 5.0 (Lollipop) or later | iOS, Android |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Body Details | With band: 59.4 g | With leather band: 53 g With FKM band: 73 g |
| Body Material | Polycarbonate | Aerospace titanium |
| Protection | Water-resistant, temperature protection, salt fog protection, freezeproof | Water-resistant |
| Colours | Desert grey | - |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Sensors | Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor | Accelerometer, digital compass, barometer, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation | Distance, speed, calories burned, sleep activity, heart rate, steps taken |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, event reminders | SMS notification, Email notification, mobile notifications, social apps notification, inactivity alert, incoming calls notification, sunrise/sunset times, Serene (breathing exercise), music playback control, weather information, Nightly Recharge recovery measurement, FitSpark training guide, FuelWise smart fueling assistant, Hill Splitter, Route guidance, Route planning with Komoot |
| Notifications | SMS, incoming calls, applications | - |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/A-GPS/Galileo/GLONASS/QZSS receiver |
| CONNECTIVITY | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Wireless Interface | Bluetooth 5.0 | Bluetooth |
|---|
| DISPLAY | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Type | AMOLED - colour | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 360 x 360 pixels | 240 x 240 pixels |
| Screen Size | 1.3" | 1.2" |
| Screen Protection | Tempered glass | Sapphire glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Bezel | - | Titanium |
| Case Back | - | Glass fibre reinforced polymer |
| Case Details | Meteorite black | Steel blue | Titan | Black DLC |
| BAND | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | - | M/L |
| Band Width | 22 mm | 22 mm |
| Fits Wrist with Circumference | - | 145-215 mm |
| Changeable | - | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone rubber | Perforated leather |
| Band Colour | Meteorite black | Blue steel | Grey | Black |
| BATTERY | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 390 mAh | 346 mAh |
| Battery Life | 18 day(s) | 7 day(s) |
| Battery Life Details | Typical usage - up to 18 days Heavy usage - up to 9 days GPS mode - up to 40 hour(s) |
Training mode (GPS and wrist-based heart rate) - up to 40 hour(s) Watch mode - up to 7 days Training mode (with power save options) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 1.5 hour(s) | - |
| MISCELLANEOUS | Amazfit T-Rex Pro | Polar Grit X Pro |
|---|
| Included Accessories | Magnetic charging dock | USB charging cable, FKM wristband |
|---|---|---|
| Max Depth of Water Resistance | 100 m | 100 m |
| Max Operating Temperature | 70 °C | 50 °C |
| Min Operating Temperature | -40 °C | -20 °C |
| Warranty | 1-year warranty | - |
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