Fitbit Blaze vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Apple Watch Series 4

 
Blaze
Flex 2
WSD-F20A
Alta HR
Watch Series 4
 FitbitBlazeRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$100$399$150$329
Release20162016201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days5 days1 day7 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320128 x 36384 x 480
Sizen/an/a1.32 inches1.4 inches1.78 inches
Touchn/a
TypeLCDLEDLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWatch OS 5
Apps
Music

All Wearables