Polar M400 vs. Polar Loop 2 vs. LG Watch Urbane vs. Fitbit Charge HR vs. Fitbit Flex

 
M400
Loop 2
Watch Urbane
Charge HR
Flex
 PolarM400Remove Buy NowPolarLoop 2Remove Buy NowLGWatch UrbaneRemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$120$245$150$100
Release20142015201520152013

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 days (without notifications)NA5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-FiNA

Display

Color
Resolutionn/an/a320 x 320NANA
Sizen/an/a1.3 inchesNANA
TouchNANA
Typen/aLEDP-OLEDOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMIP671 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNANA
Apps
Music

All Wearables