Polar A360 vs. Fitbit Charge HR vs. Garmin Forerunner 45 vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4

 
A360
Charge HR
Forerunner 45
Access Sofie HR
Vivosmart 4
 PolarA360Remove Buy NowFitbitCharge HRRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$150$199$395$130
Release20152015201920192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days5 days7 days2 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80NA208 x 208390 x 39048 x 128
Size1.18 inchesNA1.04 inches1.19 inches0.74 inches
TouchNA
Typen/aOLEDLCDOMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR301 ATM5 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inWear OS
Apps
Music

All Wearables