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

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General

BrandSamsungAmazfit
ModelSM-L705FZB1
Model NameGalaxy Watch Ultra 2025T-Rex 3 Pro
SimYes, e-Sim
Ideal ForMen, WomenMen, Women
Sales PackageSmartwatch, Charger, User ManualSmartwatch 48mm, User Manual

Design and Body

Weight61.5 g52 g
MaterialTitaniumMilitary-grade design with grade 5 titanium bezel
Strap22mm Silicon
ShapeSquicircleCircle
Water ResistantYesYes
Water Resistant Depth100 m45 m
Water Resistant Certificate10ATM / IP68 / MIL-STD-810H10ATM
Dust ProofYesYes
Scratch ResistantYesNo

Display

TypeColor Super AMOLEDColor AMOLED
TouchYes, Multi TouchYes
Size1.47 inches1.5 inches
Resolution480 x 480 pixels480 x 480 pixels
PPI327 ppi453 ppi
Ambient Light SensorYesYes
Always On DisplayYesYes
Glass TypeSapphire Crystal GlassSapphire Glass
Features3000 Nits Brightness

Memory

RAM2 GB
Inbuilt Memory64 GB

Connectivity

Wi-FiYes, 802.11a/b/g/n 2.4GHz+5GHz
Voice CallingYes
BluetoothYes, 5.3Yes, 5.0
Bluetooth CallingYes
GPSYesYes
3GYes
4GYes
VoLTEYes

Extra

NFCYes
Gesture ControlYes
GyroscopeYesYes
Voice AssistantYesYes
Inbuilt MicrophoneYesYes
Inbuilt SpeakerYesYes
NotificationsYesYes
Extra FeaturesEmergency SOS, Quick Button, Google Map Navigation180+ sport modes, Zepp Flow App, Smarter Metrics

Camera

FlashLED

Technical

OSWear OSZepp OS 5
Compatible OSAndroidAndroid 5.0 or iOS 10.0 and above
CPUExynos W1000

Battery

Battery Capacity590 mAh700 mAh
Battery TypeLithium-Ion Polymer
Removable BatteryNon-Removable Battery
Battery Backup25 days
Fast ChargingYes
Wireless ChargingYes

Fitness Features and Sensors

Heart Rate MonitorYesYes
SpO2 (Blood Oxygen) MonitorYesYes
BP MonitorYes
Temperature SensorYesYes
PedometerYesYes
AltimeterYesYes
CompassYesYes
Sleep MonitorYesYes
ReminderYesYes
Meters and SensorsAccelerometer, Calorie Count, Step Count, Barometer, Bioelectrical Impedance Analysis Sensor, Electrical Heart Sensor, Geomagnetic Sensor, Advanced BioActive SensorAccelerometer, Calorie Count, Step Count, BioTracker 2 PPG Bio-Tracking Optical Sensor, Geomagnetic Sensor, Barometric
Extra FeaturesAlarm 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 CoachAlarm Clock, Stopwatch, Timer

Warranty

Warranty1 year

Discuss

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