Garmin Vivoactive HR vs. Michael Kors Grayson vs. Garmin Vivosmart 3 vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Vivoactive HR
Grayson
Vivosmart 3
Forerunner 45
Grayson
T-Rex
 GarminVivoactive HRRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 3Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$350$139.99$199$350$140
Release201620182017201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days24 hours5 days7 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205453 x 45464 x 128208 x 208453x454360 x 360
Size1.38 inches1.39 inchesNA1.04 inches1.39 inches1.3 inches
Touch
Typen/aAMOLEDOLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearBuilt-inAndroid WearBuild-in
Apps
Music

All Wearables