Fitbit Charge 2 vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Charge 2
Grayson
Charge 3
Watch Series 4
Grayson
T-Rex
 FitbitCharge 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$350$150$329$350$140
Release201620182018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours7 daysNot Yet24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a453 x 45466 x 18384 x 480453x454360 x 360
Sizen/a1.39 inches.721 inches1.78 inches1.39 inches1.3 inches
Touchn/a
TypeOLEDAMOLEDOLEDMicroLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a1 ATM5 ATMNot Yet1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAWatch OS 5Android WearBuild-in
Apps
Music

All Wearables