Fitbit Charge 2 vs. Casio WSD-F20A vs. Fitbit Charge vs. Fitbit Charge 3 vs. Fitbit Flex

 
Charge 2
WSD-F20A
Charge
Charge 3
Flex
 FitbitCharge 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitChargeRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$399$130$150$100
Release20162018201420182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7-10 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a320 x 320NA66 x 18NA
Sizen/a1.32 inchesNA.721 inchesNA
Touchn/aNANA
TypeOLEDLCDOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNANANA
Apps
Music

All Wearables