Polar M400 vs. Samsung Gear S3 vs. Garmin Fenix 5x Plus vs. Fitbit Flex

 
M400
Gear S3
Fenix 5x Plus
Flex
 PolarM400Remove Buy NowSamsungGear S3Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$350$850$100
Release2014201620182013

Activity & Fitness

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

Battery

Duration8 hours to 30 days4 days20 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolutionn/a360 x 360240 x 240NA
Sizen/a1.3 inches1.2 inchesNA
TouchNA
Typen/aFullcolor AODMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP6810 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenWear OSNA
Apps
Music

All Wearables