Polar M430 vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson vs. Mobvoi TicWatch S2 vs. Garmin Vivosmart 4

 
M430
Grayson
Charge
Grayson
TicWatch S2
Vivosmart 4
 PolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy NowMobvoiTicWatch S2Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$255$350$130$350$180$130
Release201720182014201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours24 hours7-10 days24 hours2 DAYS7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128453 x 454NA453x454400 x 40048 x 128
Size1.4 inch1.39 inchesNA1.39 inches1.39 inches0.74 inches
TouchNA
TypeLCDAMOLEDOLEDAMOLEDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATM1 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNAAndroid WearWear OS
Apps
Music

All Wearables