Fitbit One vs. Fitbit Ionic vs. Casio WSD-F20A vs. Fitbit Flex vs. Fitbit Inspire 3

 
One
Ionic
WSD-F20A
Flex
Inspire 3
 FitbitOneRemove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$100$299$399$100$100
Release20122017201820132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days4+ days1 day5 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250320 x 320NA32x18
Sizen/a1.421.32 inchesNA46 inches
TouchNA
TypeOLEDOLEDLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant50m5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSWear OSNA
Apps
Music

All Wearables