Compare Samsung Galaxy Watch 4 vs Samsung Galaxy Fit 2 vs Mi Smart Band 6
Variants
40 mm
44 mm
Connectivity
Wireless Connectivity
LTE (optional), Bluetooth 5.0, WiFi 4, NFC
Bluetooth 5.1
Bluetooth 5.0
Construction
Battery | Capacity
159 mAh
125 mAh
Material
Aluminum case + Corning Gorilla Glass with DX+ display cover
Aluminum alloy
Motor
Rotor haptic motor
Dimensions
Size | Depth
9.8 mm
11.1 mm
12.7 mm
Size | Height
46.6 mm
47.4 mm
Size | Width
18.6 mm
18.6 mm
Weight
21 g
12.8 g
Display
Brightness
450 nits
Display Diagonal
1.1 inch
1.56 inch
Display Type
OLED (Super AMOLED), Full Color Always On Display, Corning Gorilla Glass DX
OLED (AMOLED), 16M colors (8-bit)
OLED (AMOLED), 2.5D reinforced glass and AF coating
Pixel Density
326 ppi
Resolution
126 x 294
152 x 486
Function
Chipset
Exynos W920 Dual Core 1.18GHz (5nm Processor)
Compatibility
Android 6.0 or higher
Fast Charging
30 minutes for 10 hours
GPS
GPS/Glonass/Beidou/Galileo
Operating System
Wear OS Powered by Samsung, One UI Watch 3
FreeRTOS
SIM
ESIM
Sensor
Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor
Accelerometer,Gyro Sensor,Optical Heart Rate Sensor
6-axis sensor: Low power-consumption 3-axis accelerometer and 3-axis gyroscope PPG heart rate sensor
Weather Resistance
5ATM + IP68
5 ATM waterproofing
Wireless Charging
WPC-based wireless charging
Performance
Battery Life
40 hours
up to 15 days / 21 days (low usage)
14 days
Durability
MIL-STD-810G
Memory | Capacity
1.5 GB
2 GB
Storage
16 GB
32 GB
Production
Debut
2021-08-11
2020-09-02
2021-03-29
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