Fitbit Flex 2 vs. Casio WSD-F20A vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Apple Series 6

 
Flex 2
WSD-F20A
Flex
On Full Guard 2.5
Series 6
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$399$100$325$399
Release20162018201320182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day5 days4 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320NA454x454384 x 480
Sizen/a1.32 inchesNA1.39 inches40mm
Touchn/aNA
TypeLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM1 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNAWear OSWatchOS 5
Apps
Music

All Wearables