Polar M600 vs. Fitbit Charge 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Fitbit Flex

 
M600
Charge 2
Ionic
WSD-F20A
Flex
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$330$150$299$399$100
Release20162016201720182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days4+ days1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a348x250320 x 320NA
Size1.3 inchesn/a1.421.32 inchesNA
Touchn/an/aNA
TypeTFTOLEDOLEDLCDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a50m5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aFitbit OSWear OSNA
Apps
Music

All Wearables