Polar M600 vs. Fitbit Zip vs. Garmin 645 Music vs. Michael Kors Grayson vs. Michael Kors Grayson vs. HTC re Grip

 
M600
Zip
645 Music
Grayson
Grayson
re Grip
 PolarM600Remove Buy NowFitbitZipRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$330$60$450$350$350$199
Release201620122018201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days6 months7 days24 hours24 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a240 x 240453 x 454453x454160 x 32
Size1.3 inchesn/a1.2 inches1.39 inches1.39 inches1.8 inches
Touchn/a
TypeTFTn/aMIPAMOLEDAMOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8Splash Resistant5 ATM1 ATM1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearAndroid WearNA
Apps
Music

All Wearables