Casio WSD-F10 vs. Polar M400 vs. Diesel On Full Guard vs. Garmin Forerunner 235 vs. Fitbit Flex

 
WSD-F10
M400
On Full Guard
Forerunner 235
Flex
 CasioWSD-F10Remove Buy NowPolarM400Remove Buy NowDieselOn Full GuardRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$500$200$325$299.99$100
Release20162014201720172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygenn/a
Sleepn/a
Steps
Swimn/a

Battery

Durationn/a8 hours to 30 days1 day9 days5 days
Rechargeable

Compatibility

Android
iOSn/a
Windows Phonen/an/aNA
Macn/a
Windowsn/a

Connectivity

Bluetoothn/a
Cellularn/a
GPS
NFCn/a
Wi-Fin/a

Display

Color
Resolutionn/an/a454 x 454215 x 180NA
Sizen/an/a1.4 inches1.23 inchesNA
Touchn/aNA
TypeLCDn/aOMOLEDMIPLED

Functions

Audio Speakern/aAlerts only
Clock
Phonen/a
Vibration
Voicen/a

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIP675 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0NA
Appsn/a
Musicn/a

All Wearables