In depth comparison and review of Fitbit Versa 3 and Amazfit T-Rex 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 | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | Android 7.0 (Nougat) or later, iOS 12.2 or later | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | - |
| Audio Output | Speaker | - |
| Width | 40.48 mm | 47.1 mm |
| Height | 40.48 mm | 47.1 mm |
| Depth | 12.35 mm | 13.65 mm |
| Weight | - | 66.5 g |
| Body Material | Aluminium | Polymer |
| Protection | Water-resistant | Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Sensors | Ambient light sensor, altimeter, gyro sensor, 3-axis accelerometer, temperature, optical heart sensor | Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, sleep stages, menstrual cycle | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation, sleep stages, stress level, menstrual cycle |
| Modes | - | 150+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, breathing training function | 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 |
| Notifications | Missed calls, calendar, SMS, social apps | Missed calls, calendar, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS receiver | GPS receiver |
| Payment Technology | FitBit Pay | - |
| Internet of Things (IoT) Compatible | Yes | - |
| IoT Intelligent Assistant | Google Assistant, Alexa | - |
| CONNECTIVITY | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 | Bluetooth 5.0 BLE |
|---|
| DISPLAY | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Type | AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | - | 454 x 454 pixels |
| Screen Size | - | 1.39" |
| Pixel Density | - | 326 ppi |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, touch buttons |
|---|
| CASE | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Case Shape | Square | Round |
|---|---|---|
| Case Details | Soft gold aluminium | Black aluminium | Ember black | Wild green | Desert khaki | Astro black and gold |
| BAND | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Size | S/L | - |
| Fits Wrist with Circumference | 140-220 mm | 140-205 mm |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | Thistle | Black | Midnight | Pink clay | Olive | Ember black | Wild green | Desert khaki |
| BATTERY | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Capacity | - | 500 mAh |
|---|---|---|
| Battery Life | 6 day(s) | 24 day(s) |
| Battery Life Details | Typical usage - up to 6 days GPS mode - up to 12 hour(s) |
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 |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Fitbit Versa 3 | Amazfit T-Rex 2 |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | Magnetic charging dock |
|---|---|---|
| Preloaded Software | FitBit Pay | Zepp App |
| Compliant Standards | - | MIL-STD 810G |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | 60 °C | - |
| Min Operating Temperature | -20 °C | - |
| Warranty | - | 1-year warranty |
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