Polar Loop 2 vs. LG Watch Urbane 2 vs. Fitbit Charge 3 vs. Polar A370 vs. Xiaomi Mi Band 4

 
Loop 2
Watch Urbane 2
Charge 3
A370
Mi Band 4
 PolarLoop 2Remove Buy NowLGWatch Urbane 2Remove Buy NowFitbitCharge 3Remove Buy NowPolarA370Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$120$300$150$179.95$25
Release20152015201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
SleepNA
Steps
Swim

Battery

Duration8 days (without notifications)NA7 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a480 x 48066 x 18160 x 80120x240
Sizen/a1.38 inches.721 inches1.18 inches0.95 inches
Touch
TypeLEDP-OLEDOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMNA5 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAMAZFIT OS
Apps
Music

All Wearables