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

 
Blaze
Watch Series 2
WSD-F20A
Flex
Watch Series 4
 FitbitBlazeRemove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$269$399$100$329
Release20162016201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days18 hours1 day5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312320 x 320NA384 x 480
Sizen/a1.5 inches or 1.65 inches1.32 inchesNA1.78 inches
TouchNA
TypeLCDAMOLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATM5 ATM1 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWear OSNAWatch OS 5
Apps
Music

All Wearables