Garmin Vivofit 3 vs. Garmin Vivosmart HR vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Apple Series 6

 
Vivofit 3
Vivosmart HR
Grayson
Grayson
T-Rex
Series 6
 GarminVivofit 3Remove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$170$350$350$140$399
Release201620152018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration1 year5 days24 hours24 hours20 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution64 x 64160 x 68453 x 454453x454360 x 360384 x 480
Size0.55 inches1.08 inches1.39 inches1.39 inches1.3 inches40mm
Touch
Typen/an/aAMOLEDAMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearAndroid WearBuild-inWatchOS 5
Apps
Music

All Wearables