Polar Loop vs Lenovo Cardio 2 Smart Band comparison

Compare Polar Loop
Compare Lenovo Cardio 2 Smart Band
key specs
Water ResistantYesYes
Heart Rate MonitorYesYes
Display Type-OLED
Compatible Devices-Android Phones
Battery Life (Days)-20
general
BrandPolarLenovo
ModelLoopCardio 2 Smart Band
Release dateDecember 5, 2025-
Model NamePolar LoopCardio 2
MaterialStainless Steel-
Suitable ForUnisex-
Water ResistantYesYes
Model Number-HX06H
Color-Black
Reading Type-Digital
Ideal For-Unisex
Touch Enabled-Yes
Dial Shape-Rectangle
display and battery features
Battery TypeLithium Polymer (Li-poly)Lithium Ion (Li-ion)
Charge Time (hours)8-
Battery Capacity (mAh)170100
Display Type-OLED
Battery Life (Days)-20
performance features
Water-Resistant Depth (metres)3050
Operating Temperature (Celsius)-20 °C - 50 °C-
activity tracking function
Blood Pressure MonitorYes-
Calories BurnedYesYes
Distance CoveredYesYes
Heart Rate MonitorYesYes
Sleep TrackingYesYes
SPO2 MonitorYes-
Step CounterYesYes
Alarms-Yes
Phone Notifications-Yes
Reminders-Yes
Sedentary Reminder-Yes
workout modes
TreadmillYes-
ExerciseYes-
Outdoor RunningYesYes
CyclingYesYes
WalkingYesYes
sensors
Electrical Heart Rate SensorYes-
GyroscopeYes-
Optical Heart Rate SensorYesYes
PedometerYes-
Vibration MotorYesYes
dimensions
Weight (grams)2918.1
Width (mm)27-
Height (mm)42-
Depth (mm)97.3
connectivity features
Wi-Fi Enabled-Yes
Bluetooth Enabled-Yes
Bluetooth Version-v5.0
compatibility
Compatible Devices-Android Phones

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