Polar M600 vs. Fitbit Flex 2 vs. Withings Go vs. Casio WSD-F20A vs. Polar Loop

 
M600
Flex 2
Go
WSD-F20A
Loop
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowWithingsGoRemove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$330$100$80$399$100
Release20162016201620182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days8 months1 day5 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolution240 x 240n/an/a320 x 320NA
Size1.3 inchesn/an/a1.32 inchesNA
Touchn/an/an/a
TypeTFTLEDE-InkLCDLED

Functions

Audio SpeakerAlerts only
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM5 ATM2 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aWear OSNA
Appsn/a
Music

All Wearables