Polar M430 vs. Michael Kors Grayson vs. Fitbit Charge vs. Fitbit Flex vs. Polar Loop vs. Michael Kors Grayson

 
M430
Grayson
Charge
Flex
Loop
Grayson
 PolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$255$350$130$100$100$350
Release201720182014201320132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours24 hours7-10 days5 days5 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128453 x 454NANANA453x454
Size1.4 inch1.39 inchesNANANA1.39 inches
TouchNANA
TypeLCDAMOLEDOLEDLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATM1 ATM1 ATM2 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNANANAAndroid Wear
Apps
Music

All Wearables