Polar M400 vs. Apple Watch Series 2 vs. Michael Kors Access Sofie vs. Fitbit Flex vs. Garmin Vivosmart 3

 
M400
Watch Series 2
Access Sofie
Flex
Vivosmart 3
 PolarM400Remove Buy NowAppleWatch Series 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$200$269$395$100$139.99
Release20142016201720132017

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours1 day5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312390 x 390 1.19 inchesNA64 x 128
Sizen/a1.5 inches or 1.65 inchesNANA
TouchAMOLDEDNA
Typen/aAMOLEDLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2.0NA
Apps
Music

All Wearables