Samsung Gear S2 vs. Samsung Gear S3 vs. Fitbit Charge 2 vs. Casio WSD-F20A

 
Gear S2
Gear S3
Charge 2
WSD-F20A
 SamsungGear S2Remove Buy NowSamsungGear S3Remove Buy NowFitbitCharge 2Remove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$300$350$150$399
Release2015201620162018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleepn/a
Steps
Swim

Battery

Duration2-3 days4 days5 days1 day
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/an/a
GPSn/a
NFCn/a
Wi-Fi

Display

Color
Resolution360 x 360360 x 360n/a320 x 320
Size1.2 inches1.3 inchesn/a1.32 inches
Touchn/a
TypeSuper AMOLEDFullcolor AODOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP68n/a5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenn/aWear OS
Apps
Music

All Wearables