Samsung Gear S2 vs. Fitbit Alta vs. Casio WSD-F20A vs. Samsung Galaxy Watch

 
Gear S2
Alta
WSD-F20A
Galaxy Watch
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowCasioWSD-F20ARemove Buy NowSamsungGalaxy WatchRemove Buy Now

Basic Info

Suggested Price$300$130$399$330
Release2015201620182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days1 day7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a320 x 320360 x 360
Size1.2 inchesn/a1.32 inches1.2 inches or 1.3 inches
Touchn/a
TypeSuper AMOLEDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/aWear OSTizen OS
Apps
MusicSpotify

All Wearables