Polar Loop vs Fitbit Charge 3 Smart Band comparison

Compare Polar Loop
Compare Fitbit Charge 3 Smart Band
key specs
Water ResistantYesYes
Heart Rate MonitorYesYes
Display Type-OLED
Compatible Devices-Android phones, iPhone
Battery Life (Days)-7
general
BrandPolarFitbit
ModelLoopCharge 3 Smart Band
Release dateDecember 5, 2025-
Model NamePolar LoopCharge 3
MaterialStainless Steel-
Suitable ForUnisexFitness
Water ResistantYesYes
Model Number-FB409GMBK
Color-Black
Reading Type-Digital
Ideal For-Unisex
Touch Enabled-Yes
Dial Shape-Rectangle
display and battery features
Battery TypeLithium Polymer (Li-poly)Lithium Polymer (Li-poly)
Charge Time (hours)82
Battery Capacity (mAh)170-
Display Type-OLED
Backlight Present-No
Battery Life (Days)-7
performance features
Water-Resistant Depth (metres)3050
Operating Temperature (Celsius)-20 °C - 50 °C-10° to 45°
Shock Resistant-No
activity tracking function
Blood Pressure MonitorYes-
Calories BurnedYes-
Distance CoveredYesYes
Heart Rate MonitorYesYes
Sleep TrackingYesYes
SPO2 MonitorYesYes
Step CounterYesYes
Alarms-Yes
Do Not Disturb Mode-Yes
Floors Climbed-Yes
Phone Notifications-Yes
Reminders-Yes
Sedentary Reminder-Yes
workout modes
TreadmillYes-
ExerciseYesYes
Outdoor RunningYesYes
CyclingYesYes
WalkingYesYes
Swimming-Yes
sensors
Electrical Heart Rate SensorYes-
GyroscopeYes-
Optical Heart Rate SensorYesYes
PedometerYesYes
Vibration MotorYesYes
Accelerometer-Yes
dimensions
Weight (grams)29-
Width (mm)27-
Height (mm)42-
Depth (mm)9-
connectivity features
Bluetooth Enabled-Yes
Bluetooth Version-v4
compatibility
Compatible Devices-Android phones, iPhone
Compatible Android Version-Android 5.0 and above
Compatible iOS Version-iOS 10 and above

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