Samsung Gear S2 vs. Casio WSD-F20A vs. Samsung Galaxy Watch vs. Fitbit Flex vs. Fitbit Sense 2

 
Gear S2
WSD-F20A
Galaxy Watch
Flex
Sense 2
 SamsungGear S2Remove Buy NowCasioWSD-F20ARemove Buy NowSamsungGalaxy WatchRemove Buy NowFitbitFlexRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$300$399$330$100$300
Release20152018201820132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days1 day7 days5 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360320 x 320360 x 360NA336x336
Size1.2 inches1.32 inches1.2 inches or 1.3 inchesNA1.59 inches
TouchNA
TypeSuper AMOLEDLCDAMOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenWear OSTizen OSNA
Apps
MusicSpotify

All Wearables