Polar M600 vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. Amazfit T-Rex vs. HTC re Grip

 
M600
Grayson
Watch Series 4
Grayson
T-Rex
re Grip
 PolarM600Remove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$330$350$329$350$140$199
Release201620182018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days24 hoursNot Yet24 hours20 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240453 x 454384 x 480453x454360 x 360160 x 32
Size1.3 inches1.39 inches1.78 inches1.39 inches1.3 inches1.8 inches
Touchn/a
TypeTFTAMOLEDMicroLEDAMOLEDAMOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX81 ATMNot Yet1 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearWatch OS 5Android WearBuild-inNA
Apps
Music

All Wearables