Polar M600 vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Jaybird Reign vs. Polar Loop

 
M600
Flex 2
WSD-F20A
Reign
Loop
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowJaybirdReignRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$330$100$399$150$100
Release20162016201820152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 day5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a320 x 320NANA
Size1.3 inchesn/a1.32 inchesNANA
Touchn/an/aNA
TypeTFTLEDLCDLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATMNA2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OSNANA
Apps
Music

All Wearables