Fitbit Charge 2 vs. ASUS ZenWatch 3 vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Fitbit Flex

 
Charge 2
ZenWatch 3
WSD-F20A
Alta HR
Flex
 FitbitCharge 2Remove Buy NowASUSZenWatch 3Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$150$229$399$150$100
Release20162017201820172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours1 day7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400320 x 320128 x 36NA
Sizen/a1.39 inches1.32 inches1.4 inchesNA
Touchn/aNA
TypeOLEDAMOLEDLCDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Wear OSNA
Apps
Music

All Wearables