Fitbit Charge 4 vs Fitbit Charge 2 Smart Band comparison

Compare Fitbit Charge 4
Compare Fitbit Charge 2 Smart Band
key specs
Water ResistantYesNo
Heart Rate MonitorYesYes
Compatible DevicesiOS and AndroidAndroid phones, iPhones
Battery Life (Days)75
Display Type-OLED
general
BrandFitbitFitbit
ModelCharge 4Charge 2 Smart Band
Release dateMarch 31, 2020-
Reading TypeDigitalDigital
Ideal ForUnisexUnisex
Suitable ForSports, FitnessFitness
Water ResistantYesNo
Model Name-Charge 2
Color-Black
Material-Elastomer
Touch Enabled-Yes
Dial Shape-Rectangle
display and battery features
Battery Life (Days)75
Battery TypeLithium Polymer (Li-poly)Lithium Polymer (Li-poly)
Display Type-OLED
Backlight Present-Yes
Charge Time (hours)-2
performance features
Water-Resistant Depth (metres)50-
Shock Resistant-No
Operating Temperature (Celsius)--10° to 45°
connectivity features
Bluetooth EnabledYesYes
Bluetooth Versionv4v4
compatibility
Compatible DevicesiOS and AndroidAndroid phones, iPhones
Compatible Android Version-Android 4.4 and above
activity tracking function
Heart Rate MonitorYesYes
Step CounterYesYes
Alarms-Yes
Automatic Exercise Detection-Yes
Blood Pressure Monitor-Yes
Calories Burned-Yes
Distance Covered-Yes
Do Not Disturb Mode-Yes
Floors Climbed-Yes
Phone Notifications-Yes
Reminders-Yes
Sedentary Reminder-Yes
Sleep Tracking-Yes
SPO2 Monitor-Yes
VO2 Max-Yes
sensors
AccelerometerYesYes
Barometric AltimeterYes-
Optical Heart Rate SensorYesYes
Vibration MotorYesYes
Pedometer-Yes
dimensions
Width (mm)22.7-
Height (mm)35.8-
Depth (mm)12.5-
workout modes
Exercise-Yes
Outdoor Running-Yes
Cycling-Yes
Walking-Yes

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