Polar M600 vs. Fitbit Charge 2 vs. Michael Kors Grayson vs. Jawbone UP Move vs. Michael Kors Grayson vs. Amazfit T-Rex

 
M600
Charge 2
Grayson
UP Move
Grayson
T-Rex
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP MoveRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$330$150$350$50$350$140
Release201620162018201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days24 hours6 months24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution240 x 240n/a453 x 454NA453x454360 x 360
Size1.3 inchesn/a1.39 inchesNA1.39 inches1.3 inches
Touchn/an/aNA
TypeTFTOLEDAMOLEDNAAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a1 ATMSplash Resistant1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables