Polar M600 vs. Garmin Vivosmart HR vs. Huawei Talkband B2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson

 
M600
Vivosmart HR
Talkband B2
Grayson
Flex
Grayson
 PolarM600Remove Buy NowGarminVivosmart HRRemove Buy NowHuaweiTalkband B2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$170$180$350$100$350
Release201620152015201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days3 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240160 x 68128 x 88453 x 454NA453x454
Size1.3 inches1.08 inches0.73 inches1.39 inchesNA1.39 inches
Touchn/aNA
TypeTFTn/aPMOLEDAMOLEDLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMIP571 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables