Samsung Gear S2 vs. Fitbit Alta vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Apple Watch Series 4

 
Gear S2
Alta
Flex 2
WSD-F20A
Watch Series 4
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$130$100$399$329
Release20152016201620182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days5 days1 dayNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolution360 x 360n/an/a320 x 320384 x 480
Size1.2 inchesn/an/a1.32 inches1.78 inches
Touchn/an/a
TypeSuper AMOLEDOLEDLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATM5 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/an/aWear OSWatch OS 5
Apps
Music

All Wearables