Casio WSD-F10 vs. Polar M400 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Garmin Vivofit 4

 
WSD-F10
M400
Alta
Watch Series 2
Vivofit 4
 CasioWSD-F10Remove Buy NowPolarM400Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$500$200$130$269$79.95
Release20162014201620162018

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 days5 days18 hours1 year
Rechargeable

Compatibility

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

Connectivity

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

Display

Color
Resolutionn/an/an/a340 x 272 or 390 x 31288 x 88
Sizen/an/an/a1.5 inches or 1.65 inchesNA
Touchn/an/a
TypeLCDn/aOLEDAMOLEDNA

Functions

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

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMn/a5ATM5 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aWatch OS
Appsn/a
Musicn/a

All Wearables