Polar M430 vs. Amazfit Stratos vs. Asus ZenWatch vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Michael Kors Grayson

 
M430
Stratos
ZenWatch
Grayson
Charge 3
Grayson
 PolarM430Remove Buy NowAmazfitStratosRemove Buy NowAsusZenWatchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$255$199$150$350$150$350
Release201720182014201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours5 daysNA24 hours7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution128x128320 x 300320 x 320453 x 45466 x 18453x454
Size1.4 inch1.34 inches1.63 inches1.39 inches.721 inches1.39 inches
Touch
TypeLCDOLEDAMOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305 ATMIP551 ATM5 ATM1 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemProprietaryAndroid WearAndroid WearNAAndroid Wear
Apps
Music

All Wearables