Polar M600 vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Jaybird Reign vs. Michael Kors Grayson vs. HTC re Grip

 
M600
Grayson
Vivofit 4
Reign
Grayson
re Grip
 PolarM600Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowJaybirdReignRemove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$330$350$79.95$150$350$199
Release201620182018201520182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days24 hours1 year5 days24 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240453 x 45488 x 88NA453x454160 x 32
Size1.3 inches1.39 inchesNANA1.39 inches1.8 inches
Touchn/aNA
TypeTFTAMOLEDNALEDAMOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX81 ATM5 ATMNA1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearNAAndroid WearNA
Apps
Music

All Wearables