Fitbit Flex 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Fitbit Charge HR

 
Flex 2
Ionic
WSD-F20A
Charge HR
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitCharge HRRemove Buy Now

Basic Info

Suggested Price$100$299$399$150
Release2016201720182015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250320 x 320NA
Sizen/a1.421.32 inchesNA
Touchn/aNA
TypeLEDOLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSWear OSNA
Apps
Music

All Wearables