Polar M400 vs. Moov Now vs. Garmin Vivofit 4 vs. Michael Kors Access Sofie HR vs. Fitbit Inspire 3

 
M400
Now
Vivofit 4
Access Sofie HR
Inspire 3
 PolarM400Remove Buy NowMoovNowRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$200$79$79.95$395$100
Release20142015201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days6 months1 year2 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a88 x 88390 x 39032x18
Sizen/an/aNA1.19 inches46 inches
Touchn/a
Typen/an/aNAOMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance3 ATMn/a5 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables