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Samsung Galaxy Watch 4 (40mm) vs Amazfit T Rex Pro

Samsung Galaxy Watch 4 (40mm) vs Amazfit T-Rex Pro comparison

Show Only Differences Highlight Differences	Samsung Galaxy Watch 4 (40mm)	Amazfit T-Rex Pro
key specs
Strap Colour	Black, Pink Gold, Silver	-
Display Size	40mm	-
Compatible OS	Android	iOS, Android
Dial Shape	Round	Round
Display Type	AMOLED	AMOLED
Ideal For	Unisex	Unisex
Strap Material	-	Silicone
general
Brand	Samsung	Amazfit
Model	Galaxy Watch 4 (40mm)	T-Rex Pro
Release date	August 11, 2021	March 23, 2021
Model Name	Galaxy Watch 4	Amazfit T-Rex Pro
Dial Shape	Round	Round
Size	Regular	Regular
Touchscreen	Yes	Yes
Interchangeable Strap	Yes	-
Water Resistant	IP68	10 ATM
Water Resistance Depth	5 ATM	-
Dial Material	Aluminium	Polycarbonate
Ideal For	Unisex	Unisex
Strap Colour	Black, Pink Gold, Silver	-
Dial Colour	Black, Pink Gold, Silver	Desert Grey, Meteorite Black, Steel Blue
Strap Material	-	Silicone
dimensions
Width	40.4	47.7
Height	39.3	47.7
Thickness	9.8	13.5
Weight (g)	25.90	59.40
product details
Sensor	Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor	Three-axis acceleration sensor, Heart Rate Sensor, BioTracker 2 PPG , ambient light sensor, Geomagnetic, three-axis gyroscope, barometric altimeter
Compatible Device	Android	Android, iOS
Notification	Yes	Yes
Rechargeable Battery	Yes	Yes
Battery Life	-	18 days
Charge Time	-	1.5 hours
Charger Type	-	Magnetic 2-pins Pogo Pin
connectivity features
Bluetooth	Yes	Yes
Bluetooth Version	5.0	5.0
Wi-Fi	Yes	Yes
GPS	Yes	Yes
platform and storage features
Operating System	One UI Watch 3	RTOS
Compatible Operating System	Android	iOS, Android
RAM	1.5GB	-
Processor Name	Exynos W920	-
Internal Memory	16GB	-
camera and display features
Display Resolution	396x396	320x360
Display Size	40mm	-
Display Type	AMOLED	AMOLED
Scratch Resistant	Yes, Gorilla Glass DX	Tempered Glass + anti-fingerprint coating
fitness and watch functions
Step Count	Yes	Yes
Calorie Count	Yes	Yes
Heart Rate Monitor	Yes	Yes
Compass	Yes	-
Calendar	Yes	Yes
Alarm Clock	Yes	Yes
Date & Time Display	Yes	Yes
Language	English	English
Number of Buttons	2	4
Other Watch Functions	Heart rate, blood oxygen, SpO2 Sensor	Heart rate monitoring, sleep quality monitoring
Altimeter	-	Yes
Other Fitness Features	-	100+ sports modes
audio and video features
Speaker	Yes	Yes

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