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Amazfit T-Rex and Stratos 3 are two of the best smartwatches from Huami/Xiaomi, these two watches share quite a lot in common in terms of durable designs, being fitness-oriented, and long battery life, but there are still minute differences that separate one from the other. This comparison graph features Amazfit T-Rex vs Stratos 3, compare the differences based on design, fitness tracking features, media, battery life, price and otherwise to find out which is a better smartwatch for you.

Amazfit T-Rex vs Stratos 3 Features Compared

Page Contents



Product Info	Amazfit T-Rex Specifications, Features and Price BUY @ AMAZON	Amazfit Stratos 3 Specifications, Features and Price BUY @ AMAZON
Price	$139.99	$199.99
ABOUT DEVICE	ABOUT DEVICE	ABOUT DEVICE
Device name	Amazfit T-Rex	Amazfit Stratos 3
Device type	Fitness/Sport smartwatch	Fitness/Classic smartwatch
Gender	Men	Men
Predecessor	—	Amazfit Stratos
Successor	—	—
Models	—	Amazfit Stratos 3 Elite Version
Date released	January, 2020	September, 2019
DISPLAY	DISPLAY	DISPLAY
Display size	1.3 inches	1.34 inch
Display type	AMOLED	LCD, Reflective
Resolution	360 x 360 pixel	320 x 320 px
Pixel density	—	—
Customizable watchface	Yes	Yes
Input type	4 Physical buttons, Touchscreen	4 Physical buttons, Touchscreen
Always-On	Yes	Yes
BODY	BODY	BODY
Shape	Circular, Curved	Circular
Case material	Fiber-reinforced polymer	Glass Fiber, Polycarbonate
Strap material	Silicone	Silicone
Bezel material	Polymer	Stainless steel
Strap size	22 mm	22 mm
Color	Black, Gray, Green, Khaki	Black
Screen protection	Corning Gorilla Glass 3	Corning Gorilla Glass
Dimension	47.7 X 47.7 X 13.5 mm	45.72 x 45.72 x 12.7 mm
Weight	58g	—
Waterproof rating	Yes, 5ATM	Yes, 5ATM
Swim-proof	Yes, recommended	Yes, recommended
Durability test	MIL-STD-810G	—
CONNECTIVITY	CONNECTIVITY	CONNECTIVITY
Bluetooth calling	No	No
Bluetooth	Bluetooth v5.0	Bluetooth v5.0
Wi-Fi	No	Yes, Wi-Fi 802.11 b/g/n
NFC	(China only), Yes	(China only), Yes
MEMORY	MEMORY	MEMORY
RAM	—	512MB
ROM	—	4GB
Memory card slot	No	No
CELLULAR	CELLULAR CONNECTIVITY	CELLULAR CONNECTIVITY
Network technology	None	None
SIM type	None	None
NOTIFICATIONS	NOTIFICATIONS	NOTIFICATIONS
SMS alert	Yes	Yes
Calls alert	Yes	Yes
Email alert	Yes	Yes
Event reminder	Yes	Yes
MEDIA	MEDIA	MEDIA
Audio	No	mp3/mp4
Microphone	No	No
Loudspeaker	No	No
Bluetooth music	No	Yes
Camera	No	No
SENSORS	SENSORS	SENSORS
GPS	GLONASS, GPS	BEIDOU, Galileo, GLONASS, GPS
Accelerometer	Yes	Yes
HRM	Yes	Yes
Gyroscope	—	Yes
Pulse Ox.	—	—
Altimeter	No	No
Barometer	Yes	Yes
Compass	Yes	Yes
ECG	No	No
Thermometer	No	No
Ambient light	Yes	Yes
ACTIVITY TRACKING	ACTIVITY TRACKING	ACTIVITY TRACKING
Steps	Yes	Yes
Calories	Yes	Yes
Distance	Yes	Yes
Heart rate monitoring	Yes	Yes
Sleep tracking	Yes	Yes
Floors climbed	Yes	Yes
Blood oxygen	No	No
Blood Pressure	No	No
Stress	—	—
ECG tracking	No	No
Fall detection	No	No
Menstrual cycle	No	No
VO2 Max	—	Yes
Onscreen workout	No	No
Preloaded sport modes	14, Yes	80, Yes
BATTERY	BATTERY	BATTERY
Battery type	non-removable Lithium-polymer	non-removable Lithium-polymer
Battery capacity	390mAh	300mAh
Battery life	GPS: 20hrs, Regular: 20 days	Regular: 7 days+, Ultramode: 14 days
Charging type	2-Pin charging	Charging dock
Charging duration	1-2 hours	1-2 hours
Solar power	No	No
PLATFORM	PLATFORM	PLATFORM
Operating system	Amazfit OS	Amazfit OS
Chipset	—	—
CPU	—	1.2GHz dual-core
GPU	—	—
MISC	MISC	MISC
Companion app	Amazfit Watch App	Amazfit Watch App
Compatibility	Android 5.0+, iOS 10.0+	Android 5.0+, iOS 10.0+
Payment system	Yes	Alipay
Customizable strap	22 mm, Yes	22 mm, Yes
Voice Assistant	No	No
Find my phone	Yes	Yes
Box content	Amazfit T-Rex, Charger, Manual, Straps	Amazfit Stratos 3, Charger, Manual, Straps
Price	$139.99	$199.99

What’s the Difference?

Features	Amazfit T-Rex	Amazfit Stratos 3
Display	1.3 inches AMOLED	1.34 inches Transflective MIP LCD
Materials	Polymer	Glass fiber reinforced polycarbonate and ceramic bezel
Sport Modes	14	80
FirstBeat	No	Yes; VO2 Max, recovery time, Training load, Training effect and 4 more
Music Storage	No	Yes
Battery Life	Smart mode: 20 days GPS: 20 hours	Smart mode: 14 days GPS: 35 hours

From the tables, it’s clear that each of these two is a decent smartwatch with a durable design, lots of fitness tracking features, and long battery life. However, Stratos 3 is a premium and more equipped smartwatch than T-Rex. Stratos 3 weighs a little less than T-Rex, it also has a slightly wider display and has a more durable build.

Furthermore, Stratos 3 features more preset workout modes than T-Rex, it also features 8 FirstBeat algorithms that enable it to track professional fitness metrics such as VO2 Max., recovery time, training effect, training load, and more which T-Rex lacks. The Stratos 3 also comes with music storage which allows you to take your favorite tracks with you, unlike T-Rex that lacks music storage.

On the flip side, Amazfit T-Rex is a cheaper alternative with a more colorful AMOLED display and longer battery life, and it’s still a decent fitness tracker that can help you reach more fitness goals.

BOTTOM LINE: Amazfit Stratos 3 is a better smartwatch than T-Rex, it has a more durable build and has more fitness tracking features even though, T-Rex is still a decent choice and also far cheaper.