In depth comparison and review of Amazfit T-Rex 2 and Fitbit Sense 2. 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 2 | Fitbit Sense 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Zepp OS | - |
| Supported Host Device OS | iOS 12 or later, Android 7.0 (Nougat) or later | Android 8.0 (Oreo) or later, iOS 14 or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 47.1 mm | 40.5 mm |
| Height | 47.1 mm | 40.5 mm |
| Depth | 13.65 mm | 12.3 mm |
| Weight | 66.5 g | - |
| Body Material | Polymer | Aluminium |
| Protection | Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant | Water-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Sensors | Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor | Ambient light sensor, altimeter, SpO2 sensor, 3-axis accelerometer, temperature, optical heart sensor, electrodermal activity (EDA) sensor, vibration motor, multipurpose electrical sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation, sleep stages, stress level, menstrual cycle | Distance, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, active time, menstrual cycle, breathing rate, temperature, sleep quality score, blood glucose |
| Modes | 150+ sports modes | 40+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Camera remote control, find phone function, flashlight, alarm, realtime location tracking, weather information, event reminders, PAI Health Assessment System, pomodoro timer, stopwatch timer, PeakBeats workout status algorithm, OxygenBeats algorithm, ExerSense algorithm, SomnusCare, Dual-band navigation | Find phone function, automatic exercise recognition, breathing training function, Active Zone Minutes, HRV index, Sleep Score, Sleep Profile, Stress Management Score, Daily Readiness Score, all day body response tracking, cardio fitness score |
| Notifications | Missed calls, calendar, incoming calls, applications | SMS, applications, high and low heart rate, calls, irregular rhythm |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS receiver | GPS/GLONASS receiver |
| Payment Technology | - | FitBit Pay |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Wireless Interface | Bluetooth 5.0 BLE | NFC, Bluetooth 5.0 |
|---|
| DISPLAY | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Type | AMOLED - colour | Colour |
|---|---|---|
| Resolution | 454 x 454 pixels | - |
| Screen Size | 1.39" | - |
| Pixel Density | 326 ppi | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Type | Touch sensitive screen, touch buttons | Touch sensitive screen, push button |
|---|
| CASE | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Case Shape | Round | Square |
|---|---|---|
| Case Back | - | Aluminium |
| Case Details | Ember black | Wild green | Desert khaki | Astro black and gold | Platinum aluminum |
| BAND | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Band Type | Strap | Band |
|---|---|---|
| Band Size | - | S |
| Fits Wrist with Circumference | 140-205 mm | 129-175 mm |
| Changeable | - | Yes |
| Clasp Type | Buckle | Pin-and-tuck |
| Band Material | Silicone | - |
| Band Colour | Ember black | Wild green | Desert khaki | Lunar white |
| BATTERY | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Capacity | 500 mAh | - |
| Battery Life | 24 day(s) | 6 day(s) |
| Battery Life Details | Typical usage - up to 24 days Battery safe mode - up to 45 days Heavy usage - up to 10 days Accurate mode (with GPS) - up to 26 hour(s) Balanced mode (with GPS) - up to 50 hour(s) Power saving mode (with GPS) - up to 58 hour(s) Ultra-low temperature (with GPS) - up to 10 hour(s) Ultra-low temperature (without GPS) - up to 9 days |
GPS mode - up to 5 hour(s) |
| Rechargeable Battery | Yes | - |
| Recharge Time | 2 hour(s) | 2 hours |
| MISCELLANEOUS | Amazfit T-Rex 2 | Fitbit Sense 2 |
|---|
| Included Accessories | Magnetic charging dock | Charging cable, 6-month Fitbit Premium membership, wristband (158 - 209 mm) |
|---|---|---|
| Preloaded Software | Zepp App | Alarm, FitBit Pay |
| Compliant Standards | MIL-STD 810G | - |
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Warranty | 1-year warranty | 2-year warranty |
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