Fitbit Flex 2 vs. Amazfit Stratos vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
Flex 2
Stratos
Grayson
Watch Series 4
Forerunner 45
Grayson
 FitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$199$350$329$199$350
Release201620182018201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days24 hoursNot Yet7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300453 x 454384 x 480208 x 208453x454
Sizen/a1.34 inches1.39 inches1.78 inches1.04 inches1.39 inches
Touchn/a
TypeLEDOLEDAMOLEDMicroLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMNot Yet5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryAndroid WearWatch OS 5Built-inAndroid Wear
Apps
Music

All Wearables