Fitbit Ionic vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Michael Kors Grayson vs. Xiaomi Mi Band 4

 
Ionic
Forerunner 235
Grayson
Charge HR
Grayson
Mi Band 4
 FitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowMichael KorsGraysonRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$299$299.99$350$150$350$25
Release201720172018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days9 days24 hours5 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250215 x 180453 x 454NA453x454120x240
Size1.421.23 inches1.39 inchesNA1.39 inches0.95 inches
TouchNA
TypeOLEDMIPAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM1 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid WearNAAndroid WearAMAZFIT OS
Apps
Music

All Wearables