Polar M600 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Fitbit Flex

 
M600
Ionic
WSD-F20A
Flex
 PolarM600Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$330$299$399$100
Release2016201720182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days4+ days1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240348x250320 x 320NA
Size1.3 inches1.421.32 inchesNA
Touchn/aNA
TypeTFTOLEDLCDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX850m5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearFitbit OSWear OSNA
Apps
Music

All Wearables