In depth comparison and review of Garmin vívoactive 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 | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | iOS, Android | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Width | 43.4 mm | 47.1 mm |
| Height | 43.4 mm | 47.1 mm |
| Depth | 11.7 mm | 13.65 mm |
| Weight | 43 g | 66.5 g |
| Body Material | - | Polymer |
| Protection | Waterproof | Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Sensors | Accelerometer, digital compass, thermometre, altimeter, heart rate, VO2 max | Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, pace, stress level | 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, find phone function, call alerts, Bluetooth Smart technology, automatic exercise recognition, VIRB control, Move IQ, Side Swipe interface, Find my Device, Downloadable workouts | 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 | Calendar, SMS, Email | Missed calls, calendar, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS receiver |
| Payment Technology | Garmin Pay | - |
| CONNECTIVITY | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Wireless Interface | Bluetooth 4.0, ANT+/ANT | Bluetooth 5.0 BLE |
|---|
| DISPLAY | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 240 x 240 pixels | 454 x 454 pixels |
| Screen Size | 1.2" | 1.39" |
| Aspect Ratio | Full circle | - |
| Pixel Density | - | 326 ppi |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, touch buttons |
|---|
| CASE | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Bezel | Stainless steel | - |
| Case Back | Glass fibre reinforced polymer | - |
| Case Details | Stainless steel | Rose gold | Gunmetal | Ember black | Wild green | Desert khaki | Astro black and gold |
| BAND | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 20 mm | - |
| Fits Wrist with Circumference | 127-204 mm | 140-205 mm |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone |
| Band Colour | Black | White | Ember black | Wild green | Desert khaki |
| BATTERY | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Capacity | - | 500 mAh |
| Battery Life | 8 day(s) | 24 day(s) |
| Battery Life Details | Navigation tracking - up to 13 hour(s) Typical usage - up to 8 days |
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 |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin vívoactive 3 | Amazfit T-Rex 2 |
|---|
| Included Accessories | Charging cable | Magnetic charging dock |
|---|---|---|
| Preloaded Software | Garmin Pay, Garmin Heartbeat, CONNECT IQ | Zepp App |
| Compliant Standards | - | MIL-STD 810G |
| Max Depth of Water Resistance | 50 m | 100 m |
| Warranty | 1-year warranty | 1-year warranty |
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