In depth comparison and review of Samsung Galaxy Watch 3 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 | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Tizen OS 5.5 | - |
| Supported Host Device OS | iOS 9 or later, Android 5.0 (Lollipop) or later | iOS 10 or later, Android 5.0 (Lollipop) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | - |
| Width | 41 mm | - |
| Height | 42.5 mm | - |
| Depth | 11.3 mm | - |
| Weight | 48.2 g | - |
| Body Details | - | With band: 59.4 g |
| Body Material | Stainless steel | Polycarbonate |
| Protection | Waterproof | Water-resistant, temperature protection, salt fog protection, freezeproof |
| Colours | - | Desert grey |
| Clock Display | Yes | Yes |
| FEATURES | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, optical heart sensor, electrical heart 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, blood pressure | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, ECG accurate heart rate, find phone function, VO2 max, automatic exercise recognition, Fall detection, Wireless PowerShare support | Music remote handling, event reminders |
| Notifications | SMS, social apps, incoming calls | SMS, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | - |
| Digital Player | MP3, WMA, WAV, AAC, AMR, MP4, OGG, 3GA, AWB, OGA | - |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/GLONASS/Galileo/BeiDou receiver |
| CONNECTIVITY | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Wireless Interface | IEEE 802.11b/g/n, NFC, Bluetooth 5.0 | Bluetooth 5.0 |
|---|---|---|
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - |
| DISPLAY | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Type | Super AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 360 x 360 pixels | 360 x 360 pixels |
| Screen Size | 1.2" | 1.3" |
| Aspect Ratio | Full circle | - |
| Screen Protection | Corning Gorilla Glass DX (scratch resistant glass) | Tempered glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Type | Touch sensitive screen, rotating bezel | Touch sensitive screen |
|---|
| CASE | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Case Size | 41 mm | - |
|---|---|---|
| Case Shape | Round | Round |
| Case Details | Mystic bronze | Mystic silver | Meteorite black | Steel blue |
| BAND | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Width | 20 mm | 22 mm |
| Changeable | Yes | - |
| Clasp Type | Buckle | Buckle |
| Band Material | Leather | Silicone rubber |
| Band Colour | - | Meteorite black | Blue steel |
| STORAGE | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Storage Capacity | 8 GB | - |
|---|---|---|
| User Memory | 4.3 GB | - |
| RAM | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| RAM Size | 1 GB | - |
|---|
| CPU | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Manufacturer | Samsung | - |
|---|---|---|
| CPU Type | Exynos 9110 | - |
| Clock Speed | 1.15 GHz | - |
| BATTERY | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Technology | - | Lithium polymer |
|---|---|---|
| Capacity | 247 mAh | 390 mAh |
| Battery Life | 120 hours | 18 day(s) |
| Battery Life Details | Typical usage - up to 43 hour(s) Low usage - up to 120 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) |
| Wireless Charging | Yes | - |
| Wireless Charging Standards | WPC | - |
| MISCELLANEOUS | Samsung Galaxy Watch 3 | Amazfit T-Rex Pro |
|---|
| Included Accessories | Wireless charging dock | Magnetic charging dock |
|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68 | - |
| SAR Value | 0.209 W/kg (head), 0.294 W/kg (limb) | - |
| Max Depth of Water Resistance | 50 m | 100 m |
| Max Operating Temperature | - | 70 °C |
| Min Operating Temperature | - | -40 °C |
| Manufacturer Model Number | SM-R850 | - |
| Warranty | 2-year warranty | 1-year warranty |
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