Fitbit Charge 4 vs Mi Smart Band 4 comparison

Show Only Differences Highlight Differences	Fitbit Charge 4	Mi Smart Band 4
key specs
Water Resistant	Yes	Yes
Heart Rate Monitor	Yes	Yes
Compatible Devices	iOS and Android	Android, iOS Phones
Battery Life (Days)	7	20
Display Type	-	AMOLED
general
Brand	Fitbit	Mi
Model	Charge 4	Smart Band 4
Release date	March 31, 2020	-
Reading Type	Digital	-
Ideal For	Unisex	Unisex
Suitable For	Sports, Fitness	Health, Lifestyle
Water Resistant	Yes	Yes
Model Name	-	Band 4
Color	-	Black
Material	-	Thermoplastic
Touch Enabled	-	Yes
Dial Shape	-	Rectangle
display and battery features
Battery Life (Days)	7	20
Battery Type	Lithium Polymer (Li-poly)	Lithium Ion (Li-ion)
Display Resolution	-	120 x 240 RGB
Display Type	-	AMOLED
Charge Time (hours)	-	2
Battery Capacity (mAh)	-	135
performance features
Water-Resistant Depth (metres)	50	50
Shock Resistant	-	Yes
connectivity features
Bluetooth Enabled	Yes	Yes
Bluetooth Version	v4	v5.0
Wi-Fi Enabled	-	No
compatibility
Compatible Devices	iOS and Android	Android, iOS Phones
activity tracking function
Heart Rate Monitor	Yes	Yes
Step Counter	Yes	Yes
Calories Burned	-	Yes
Distance Covered	-	Yes
Phone Notifications	-	Yes
Sleep Tracking	-	Yes
sensors
Accelerometer	Yes	Yes
Barometric Altimeter	Yes	-
Optical Heart Rate Sensor	Yes	Yes
Vibration Motor	Yes	-
Gyroscope	-	Yes
dimensions
Width (mm)	22.7	45.72
Height (mm)	35.8	12.7
Depth (mm)	12.5	17.78
Weight (grams)	-	22.1
ratings
Overall NDTV Rating	-	Read Review
Design and comfort Rating	-
Tracking accuracy Rating	-
Companion app Rating	-
Battery life Rating	-
workout modes
Treadmill	-	Yes
Exercise	-	Yes
Outdoor Running	-	Yes
Cycling	-	Yes
Walking	-	Yes
Swimming	-	Yes

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