Samsung Galaxy Watch Ultra vs Amazfit T-Rex 3 Pro Smartwatch
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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 | 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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