Casio WSD-F10 vs. Polar M400 vs. Samsung Gear S2 vs. Fitbit Alta vs. Apple Watch Series 2

 
WSD-F10
M400
Gear S2
Alta
Watch Series 2
 CasioWSD-F10Remove Buy NowPolarM400Remove Buy NowSamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy Now

Basic Info

Suggested Price$500$200$300$130$269
Release20162014201520162016

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 days2-3 days5 days18 hours
Rechargeable

Compatibility

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

Connectivity

Bluetoothn/a
Cellularn/an/a
GPSn/a
NFCn/a
Wi-Fin/a

Display

Color
Resolutionn/an/a360 x 360n/a340 x 272 or 390 x 312
Sizen/an/a1.2 inchesn/a1.5 inches or 1.65 inches
Touchn/an/a
TypeLCDn/aSuper AMOLEDOLEDAMOLED

Functions

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

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIP68n/a5ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

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

All Wearables