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Amazfit T-Rex vs Stratos 3 – Which is Better?

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Featured in this comparison chart are two rugged sports smartwatches from Huami/Xiaomi; the T-Rex vs Stratos 3 – Which is a better smartwatch. The T-Rex is a relatively newer rugged-looking smartwatch certified with MIL-STD-810 – US military-grade rating, while the Stratos 3 is a more equipped and sophisticated smartwatch with more fitness tracking features, durable build, and onboard music storage. Compare these two fine smartwatches to find out the differences.

Amazfit T-Rex vs Stratos 3: Specifications Compared

 
 
Product Info
Amazfit T-Rex Specs and features

Amazfit T-Rex Specifications, Features and Price

Amazfit smartwatches

Amazfit Stratos 3 Specifications, Features and Price

Price $139.99 $176.99
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
Release date January, 2020 September, 2019
Predecessor Amazfit Stratos
Successor
Versions Amazfit Stratos 3 Elite Version
BODY BODY BODY
Dimension 47.7 X 47.7 X 13.5 mm 45.72 x 45.72 x 12.7 mm
Weight 58g
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
Screen protection Corning Gorilla Glass 3 Corning Gorilla Glass
Water resistance Yes, 5ATM Yes, 5ATM
Durability test MIL-STD-810G
Swim-proof Yes, recommended Yes, recommended
Color Black, Gray, Green, Khaki Black
DISPLAY DISPLAY DISPLAY
Display size 1.3 inches 1.34 inch
Display type AMOLED LCD, Reflective
Display resolution 360 x 360 pixel 320 x 320 px
Pixel density
Always on Yes Yes
Custom watch face Yes Yes
Input type 4 Physical buttons, Touchscreen 4 Physical buttons, Touchscreen
CONNECTIVITY CONNECTIVITY CONNECTIVITY
Bluetooth Bluetooth v5.0 Bluetooth v5.0
Bluetooth calling No No
GPS GLONASS, GPS BEIDOU, Galileo, GLONASS, GPS
NFC (China only), Yes (China only), Yes
Wi-Fi No Yes, Wi-Fi 802.11 b/g/n
MEMORY MEMORY MEMORY
RAM 512MB
ROM 4GB
Memory card slot No No
CELLULAR CONNECTIVITY CELLULAR CONNECTIVITY CELLULAR CONNECTIVITY
Technology None None
SIM type None None
Band
NOTIFICATIONS NOTIFICATIONS NOTIFICATIONS
SMS alert Yes Yes
Calls alert Yes Yes
Email alert Yes Yes
Event reminder Yes Yes
Third-party apps alert Yes Yes
MEDIA MEDIA MEDIA
Audio No mp3/mp4
Bluetooth music No Yes
Loudspeaker No No
Microphone No No
Camera No No
Radio No No
SENSORS SENSORS SENSORS
Accelerometer Yes Yes
Altimeter No No
Ambient light Yes Yes
Barometer Yes Yes
Compass Yes Yes
ECG No No
Gyroscope Yes
HRM Yes Yes
Pulse oximeter
Thermometer No No
Other sensors
ACTIVITY TRACKING ACTIVITY TRACKING ACTIVITY TRACKING
Blood oxygen No No
Blood Pressure No No
Calories Yes Yes
Distance Yes Yes
ECG tracking No No
Fitness Level
Heart rate monitoring Yes Yes
Sleep tracking Yes Yes
Steps Yes Yes
Stress
Incidental fall detection No No
Menstrual cycle No No
VO2 Max Yes
Swim-tracking No Yes
Swim-heart tracking No No
On-screen workout No No
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 time 1-2 hours 1-2 hours
Solar power No No
PLATFORM PLATFORM PLATFORM
Chipset
CPU 1.2GHz dual-core
GPU
Operating system Amazfit OS Amazfit OS
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
Interchangeable strap 22 mm, Yes 22 mm, Yes
Voice command No No
Find my phone Yes Yes
Box content Amazfit T-Rex, Charger, Manual, Straps Amazfit Stratos 3, Charger, Manual, Straps
Price $139.99 $176.99
SEE ALSO

Amazfit T-Rex vs Stratos 3: Which is Better?

Both the T-Rex and Stratos 3 are durable and sturdily built devices, fitness-focused with a long battery life that keeps you going longer. However, Stratos 3 is a far more sophisticated smartwatch. It features 8 Firstbeat algorithms which include Vo2 Max. that monitors your blood oxygen to ascertain your fitness level, recovery time that helps you plan better, and training load that shows the physiological impact of your training over time.

Moreover, the Stratos 3 comes with significant onboard storage that allows you to take your music along with you.

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