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Amazfit Active 2 (Square) vs Garmin Fēnix 8 (47mm)

Physical
Case diameter 47 mm
Case thickness 13.8 mm
Weight 31.4 g 80 g
Case material Polymer
Bezel material Titanium
Lens / crystal Corning® Gorilla® Glass or sapphire crystal
Strap material silicone
Strap width
Colors available
Water resistance 100 m
Military standard
Display
Display type AMOLED
Display diagonal 1.4 mm
Resolution width 390 px 454 px
Resolution height 450 px 454 px
Touchscreen Yes No
Always-on display No No
Max brightness
Battery
Smartwatch mode 240 h 384 h
GPS-only mode
All-systems GPS mode
Max battery saver mode 456 h
Charging type Magnetic charging base Garmin proprietary plug charger
Solar charging No No
Wireless charging No No
Positioning
GNSS systems
Multi-band / dual-frequency No Yes
Offline maps Yes No
Built-in maps No Yes
Turn-by-turn navigation No No
Sensors
Optical heart rate Yes Yes
ECG No Yes
SpO2 / pulse oximeter No Yes
Skin temperature No No
Accelerometer No No
Gyroscope No No
Compass No Yes
Barometric altimeter Yes Yes
Ambient thermometer No No
Microphone No No
Speaker Yes No
Connectivity
Bluetooth No No
Wi-Fi No Yes
NFC payments Yes No
Cellular / LTE Yes Yes
ANT+ No No
Music storage Yes No
Third-party apps No No
Satellite communication No Yes
Health & Fitness
Sleep tracking Yes Yes
Stress tracking Yes No
HRV tracking Yes Yes
Training load No Yes
Training readiness / recovery Yes Yes
VO2 max estimate No Yes
Running dynamics No No
Body battery / energy score No No
Menstrual cycle tracking Yes Yes
Fall / incident detection No No
Guided workouts No No
Multisport / triathlon mode No Yes
Software
Operating system
Companion app
Voice assistant
Contactless payments No No