Polar M400 vs. Samsung Gear S3 vs. Fitbit Flex 2 vs. Samsung Gear Fit2

 
M400
Gear S3
Flex 2
Gear Fit2
 PolarM400Remove Buy NowSamsungGear S3Remove Buy NowFitbitFlex 2Remove Buy NowSamsungGear Fit2Remove Buy Now

Basic Info

Suggested Price$200$350$100$180
Release2014201620162016

Activity & Fitness

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

Battery

Duration8 hours to 30 days4 days5 days3-4 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Colorn/a
Resolutionn/a360 x 360n/a432 x 216
Sizen/a1.3 inchesn/a1.5 inches
Touchn/a
Typen/aFullcolor AODLEDSuper AMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATMIP68

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenn/aTizen
Apps
Music

All Wearables