Polar M400 vs. Asus ZenWatch vs. Casio G-Shock GBA800 vs. Garmin Fenix 5x Plus vs. Fitbit Flex

 
M400
ZenWatch
G-Shock GBA800
Fenix 5x Plus
Flex
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$150$120$850$100
Release20142014201820182013

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA2 years20 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320240 x 240NA
Sizen/a1.63 inches1.2 inchesNA
TouchNA
Typen/aAMOLEDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP5520 ATM10 ATM1 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearWear OSNA
Apps
Music

All Wearables