Fitbit Flex 2 vs. Michael Kors Grayson vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Xiaomi Mi Band 4

 
Flex 2
Grayson
Forerunner 45
Grayson
Mi Band 4
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$100$350$199$350$25
Release20162018201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours7 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454208 x 208453x454120x240
Sizen/a1.39 inches1.04 inches1.39 inches0.95 inches
Touchn/a
TypeLEDAMOLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearBuilt-inAndroid WearAMAZFIT OS
Apps
Music

All Wearables