Amazfit T-Rex 3 Pro Smartwatch 48mm vs Samsung Galaxy Watch Ultra
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General
| Brand | Amazfit | Samsung |
| Model Name | T-Rex 3 Pro | Galaxy Watch Ultra |
| Sim | Yes, e-Sim | |
| Ideal For | Men, Women | Men, Women |
| Sales Package | Smartwatch 48mm, User Manual | Smartwatch, Charger, User Manual |
Design and Body
| Dimensions | 47.4mm x 47.1mm x 12.1mm | |
| Weight | 52 g | 60.5 g |
| Material | Military-grade design with grade 5 titanium bezel | Titanium |
| Strap | 22mm Silicon | |
| Shape | Circle | Squicircle |
| Water Resistant | Yes | Yes |
| Water Resistant Depth | 45 m | 100 m |
| Water Resistant Certificate | 10ATM | IP68, 10ATM |
| Dust Proof | Yes | Yes |
| Scratch Resistant | No | Yes |
Display
| Type | Color AMOLED | Color Super AMOLED |
| Touch | Yes | Yes, Multi Touch |
| Size | 1.5 inches | 1.47 inches |
| Resolution | 480 x 480 pixels | 480 x 480 pixels |
| PPI | 453 ppi | 453 ppi |
| Ambient Light Sensor | Yes | Yes |
| Always On Display | Yes | Yes |
| Glass Type | Sapphire Glass | Sapphire Glass |
| Features | 3000 Nits Brightness | 16M Color Depth |
Memory
| RAM | 2 GB | |
| Inbuilt Memory | 32 GB |
Connectivity
| Wi-Fi | Yes, 802.11a/b/g/n 2.4GHz+5GHz | |
| Voice Calling | Yes | |
| Bluetooth | Yes, 5.0 | Yes, 5.3 |
| Bluetooth Calling | Yes | |
| GPS | Yes | Yes |
| 3G | Yes | |
| 4G | Yes | |
| VoLTE | Yes |
Extra
| NFC | Yes | |
| Gesture Control | Yes | |
| Gyroscope | Yes | Yes |
| Voice Assistant | Yes | Yes |
| Inbuilt Microphone | Yes | Yes |
| Inbuilt Speaker | Yes | Yes |
| Notifications | Yes | Yes |
| Extra Features | 180+ sport modes, Zepp Flow App, Smarter Metrics | Emergency SOS, Quick Button, Google Map Navigation |
Camera
| Flash | LED |
Technical
| OS | Zepp OS 5 | Wear OS |
| Compatible OS | Android 5.0 or iOS 10.0 and above | Android |
| CPU | Exynos W1000 | |
| CPU Speed | 1.6 GHz |
Battery
| Battery Capacity | 700 mAh | 590 mAh |
| Battery Type | Lithium-Ion Polymer | |
| Removable Battery | Non-Removable Battery | |
| Battery Backup | 25 days | 4.17 days |
| Fast Charging | Yes | |
| Wireless Charging | Yes |
Fitness Features and Sensors
| Heart Rate Monitor | Yes | Yes |
| SpO2 (Blood Oxygen) Monitor | Yes | Yes |
| BP Monitor | Yes | |
| Temperature Sensor | Yes | Yes |
| Pedometer | Yes | Yes |
| Altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sleep Monitor | Yes | Yes |
| Reminder | Yes | Yes |
| Meters and Sensors | Accelerometer, Calorie Count, Step Count, BioTracker 2 PPG Bio-Tracking Optical Sensor, Geomagnetic Sensor, Barometric | Accelerometer, Calorie Count, Step Count, Barometer, Bioelectrical Impedance Analysis Sensor, Electrical Heart Sensor, Geomagnetic Sensor, Advanced BioActive Sensor |
| Extra Features | Alarm Clock, Stopwatch, Timer | Alarm Clock, Stopwatch, Timer, ECG, Energy Score, AGEs |
Warranty
| Warranty | 1 year | 1 year, Brand Warranty |
Discuss
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