Apple Watch Series 3 vs. Garmin Vivoactive 3 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Watch Series 3
Vivoactive 3
Grayson
Flex
Grayson
T-Rex
 AppleWatch Series 3Remove Buy NowGarminVivoactive 3Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$299$350$100$350$140
Release201720172018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days24 hours5 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312240 x 240453 x 454NA453x454360 x 360
Size1.5 inches or 1.65 inches1.2 inches1.39 inchesNA1.39 inches1.3 inches
TouchNA
TypeAMOLEDMIPAMOLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Android WearNAAndroid WearBuild-in
Apps
Music

All Wearables