Samsung Galaxy Watch Ultra vs Amazfit T-Rex 3 Pro Smartwatch 48mm
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General
| Brand | Samsung | Amazfit |
| Model | SM-L705FZB1 | |
| Model Name | Galaxy Watch Ultra 2025 | T-Rex 3 Pro |
| Sim | Yes, e-Sim | |
| Ideal For | Men, Women | Men, Women |
| Sales Package | Smartwatch, Charger, User Manual | Smartwatch 48mm, User Manual |
Design and Body
| Weight | 61.5 g | 52 g |
| Material | Titanium | Military-grade design with grade 5 titanium bezel |
| Strap | 22mm Silicon | |
| Shape | Squicircle | Circle |
| Water Resistant | Yes | Yes |
| Water Resistant Depth | 100 m | 45 m |
| Water Resistant Certificate | 10ATM / IP68 / MIL-STD-810H | 10ATM |
| Dust Proof | Yes | Yes |
| Scratch Resistant | Yes | No |
Display
| Type | Color Super AMOLED | Color AMOLED |
| Touch | Yes, Multi Touch | Yes |
| Size | 1.47 inches | 1.5 inches |
| Resolution | 480 x 480 pixels | 480 x 480 pixels |
| PPI | 327 ppi | 453 ppi |
| Ambient Light Sensor | Yes | Yes |
| Always On Display | Yes | Yes |
| Glass Type | Sapphire Crystal Glass | Sapphire Glass |
| Features | 3000 Nits Brightness |
Memory
| RAM | 2 GB | |
| Inbuilt Memory | 64 GB |
Connectivity
| Wi-Fi | Yes, 802.11a/b/g/n 2.4GHz+5GHz | |
| Voice Calling | Yes | |
| Bluetooth | Yes, 5.3 | Yes, 5.0 |
| 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 | Emergency SOS, Quick Button, Google Map Navigation | 180+ sport modes, Zepp Flow App, Smarter Metrics |
Camera
| Flash | LED |
Technical
| OS | Wear OS | Zepp OS 5 |
| Compatible OS | Android | Android 5.0 or iOS 10.0 and above |
| CPU | Exynos W1000 |
Battery
| Battery Capacity | 590 mAh | 700 mAh |
| Battery Type | Lithium-Ion Polymer | |
| Removable Battery | Non-Removable Battery | |
| Battery Backup | Upto 48 Hours | 25 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, Barometer, Bioelectrical Impedance Analysis Sensor, Electrical Heart Sensor, Geomagnetic Sensor, Advanced BioActive Sensor | Accelerometer, Calorie Count, Step Count, BioTracker 2 PPG Bio-Tracking Optical Sensor, Geomagnetic Sensor, Barometric |
| Extra Features | Alarm Clock, Stopwatch, Timer, Advanced Sleep Coaching (Bedtime Guidance), BIA (Bioelectrical Impedance Analysis), ECG, Irregular Heart Rhythm Notification Personalized Heart Rate Zones, Continuous SpO2, Skin Temperature, Sleep Apnea, Energy Score, Vascular Load, Antioxidant Index, Running Coach | Alarm Clock, Stopwatch, Timer |
Warranty
| Warranty | 1 year |
Discuss
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