In depth comparison and review of Polar Unite and Amazfit T-Rex 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 | Polar Unite | Amazfit T-Rex Pro |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Supported Host Device OS | iOS, Android | iOS 10 or later, Android 5.0 (Lollipop) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Width | 43.4 mm | - |
| Height | 43.4 mm | - |
| Depth | 10.4 mm | - |
| Weight | 32 g | - |
| Body Details | - | With band: 59.4 g |
| Body Material | Fibreglass reinforced polymer | Polycarbonate |
| Protection | Water-resistant | Water-resistant, temperature protection, salt fog protection, freezeproof |
| Colours | - | Desert grey |
| Clock Display | Yes | Yes |
| FEATURES | Polar Unite | Amazfit T-Rex Pro |
|---|
| Sensors | Accelerometer, ambient light sensor, optical heart sensor | Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation |
| Goal Setting | Yes | Yes |
| Features | Fitness test, Bluetooth Smart technology, inactivity alert, GPS via mobile, guided breathing session, Nightly Recharge recovery measurement, FitSpark training guide | Music remote handling, event reminders |
| Notifications | Calendar, SMS, Email | SMS, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou receiver |
| CONNECTIVITY | Polar Unite | Amazfit T-Rex Pro |
|---|
| Wireless Interface | Bluetooth | Bluetooth 5.0 |
|---|---|---|
| Connectors | USB | - |
| DISPLAY | Polar Unite | Amazfit T-Rex Pro |
|---|
| Type | IPS - colour | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 204 pixels | 360 x 360 pixels |
| Screen Size | - | 1.3" |
| Screen Protection | - | Tempered glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Polar Unite | Amazfit T-Rex Pro |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Polar Unite | Amazfit T-Rex Pro |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Case Details | - | Meteorite black | Steel blue |
| BAND | Polar Unite | Amazfit T-Rex Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S/L | - |
| Band Width | 20 mm | 22 mm |
| Fits Wrist with Circumference | 130-210 mm | - |
| Changeable | Yes | - |
| Clasp Type | Snap & slip | Buckle |
| Band Material | Silicone | Silicone rubber |
| Band Colour | Black | Blue | Pink | White | Meteorite black | Blue steel |
| BATTERY | Polar Unite | Amazfit T-Rex Pro |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | 174 mAh | 390 mAh |
| Battery Life | - | 18 day(s) |
| Battery Life Details | Watch mode + HR - up to 4 days Training mode + HR - up to 50 hour(s) |
Typical usage - up to 18 days Heavy usage - up to 9 days GPS mode - up to 40 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 1.5 hour(s) |
| MISCELLANEOUS | Polar Unite | Amazfit T-Rex Pro |
|---|
| Included Accessories | Charging/data cable | Magnetic charging dock |
|---|---|---|
| Preloaded Software | Polar Fitness Test, Polar Flow | - |
| Max Depth of Water Resistance | 30 m | 100 m |
| Max Operating Temperature | 50 °C | 70 °C |
| Min Operating Temperature | -10 °C | -40 °C |
| Warranty | 2-year warranty | 1-year warranty |
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