In depth comparison and review of Garmin vívoactive 4S 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 | Garmin vívoactive 4S | 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 | 40 mm | - |
| Height | 40 mm | - |
| Depth | 12.7 mm | - |
| Weight | 40 g | - |
| Body Details | - | With band: 59.4 g |
| Body Material | Stainless steel, fibre-reinforced polymer | Polycarbonate |
| Protection | Water-resistant | Water-resistant, temperature protection, salt fog protection, freezeproof |
| Colours | - | Desert grey |
| Clock Display | Yes | Yes |
| FEATURES | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Sensors | Accelerometer, thermometre, altimeter, gyro sensor, heart rate, electromagnetic compass, Pulse Ox 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, time, calories burned, sleep activity, heart rate, steps taken, floors climbed, blood oxygen saturation, stress level, menstrual cycle, breathing rate, hydration | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, idle alert, HR zones, Move IQ, Garmin Connect compatible, Find my Device, store & play music, rejecting a call, Garmin Elevate, TrueUp, Body Battery | Music remote handling, event reminders |
| Notifications | SMS, incoming calls | SMS, incoming calls, applications |
| Vibrating Alert | - | Yes |
| Navigation (GPS) | GPS/GLONASS/Galileo receiver | GPS/GLONASS/Galileo/BeiDou receiver |
| Payment Technology | Garmin Pay | - |
| CONNECTIVITY | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Wireless Interface | Bluetooth, Wi-Fi, NFC, ANT+ | Bluetooth 5.0 |
|---|
| DISPLAY | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Type | Memory-in-Pixel LCD - colour | AMOLED - colour |
|---|---|---|
| Resolution | 218 x 218 pixels | 360 x 360 pixels |
| Screen Size | 1.1" | 1.3" |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Tempered glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Type | Touch sensitive screen, touch buttons | Touch sensitive screen |
|---|
| CASE | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Case Size | 40 mm | - |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | Slate stainless steeel | - |
| Case Back | Polymer | - |
| Case Details | Black | Powder grey | White | Dust rose | Meteorite black | Steel blue |
| BAND | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Width | 18 mm | 22 mm |
| Fits Wrist with Circumference | 110-175 mm | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone | Silicone rubber |
| Band Colour | Black | Powder grey | White | Dust rose | Meteorite black | Blue steel |
| BATTERY | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Capacity | - | 390 mAh |
| Battery Life | 7 day(s) | 18 day(s) |
| Battery Life Details | Smartwatch mode - up to 7 days GPS mode - up to 15 hour(s) Smartwatch with music mode - up to 6 hour(s) GPS with Music mode - up to 5 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 | Garmin vívoactive 4S | Amazfit T-Rex Pro |
|---|
| Included Accessories | Charging/data cable | Magnetic charging dock |
|---|---|---|
| Preloaded Software | Garmin Pay, Garmion Connect IQ | - |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | 60 °C | 70 °C |
| Min Operating Temperature | -20 °C | -40 °C |
| Warranty | - | 1-year warranty |
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