In depth comparison and review of Fitbit Sense 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 | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Supported Host Device OS | Android 7.0 (Nougat) or later, iOS 12.2 or later | iOS 10 or later, Android 5.0 (Lollipop) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | - |
| Audio Output | Speaker | - |
| Width | 40.38 mm | - |
| Height | 40.38 mm | - |
| Depth | 12.45 mm | - |
| Body Details | - | With band: 59.4 g |
| Body Material | Stainless steel, aluminium | Polycarbonate |
| Protection | Water-resistant | Water-resistant, temperature protection, salt fog protection, freezeproof |
| Colours | - | Desert grey |
| Clock Display | Yes | Yes |
| FEATURES | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Sensors | Ambient light sensor, altimeter, gyro sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) 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, skin temperature, sleep stages, stress level, menstrual cycle, ECG | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, HR zones, breathing training function | Music remote handling, event reminders |
| Notifications | Missed calls, calendar, SMS, social apps | SMS, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | - |
| Navigation (GPS) | GPS/GLONASS receiver | GPS/GLONASS/Galileo/BeiDou receiver |
| Payment Technology | FitBit Pay | - |
| Internet of Things (IoT) Compatible | Yes | - |
| IoT Intelligent Assistant | Google Assistant, Alexa | - |
| CONNECTIVITY | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 | Bluetooth 5.0 |
|---|
| DISPLAY | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Type | AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | - | 360 x 360 pixels |
| Screen Size | - | 1.3" |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Tempered glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Case Shape | Square | Round |
|---|---|---|
| Case Details | Silver stainless steel | Graphite stainless steel | Soft gold stainless steel | Meteorite black | Steel blue |
| BAND | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Size | S/L | - |
| Band Width | - | 22 mm |
| Fits Wrist with Circumference | 140-220 mm | - |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone rubber |
| Band Colour | Sage grey | Carbon | Lunar white | Meteorite black | Blue steel |
| BATTERY | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | - | 390 mAh |
| Battery Life | 6 day(s) | 18 day(s) |
| Battery Life Details | Typical usage - up to 6 days GPS mode - up to 12 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 | Fitbit Sense | Amazfit T-Rex Pro |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | Magnetic charging dock |
|---|---|---|
| Preloaded Software | FitBit Pay | - |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | 45 °C | 70 °C |
| Min Operating Temperature | -10 °C | -40 °C |
| Warranty | - | 1-year warranty |
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