Polar M600 vs. Misfit Ray vs. Casio WSD-F20A vs. Fitbit Alta HR

 
M600
Ray
WSD-F20A
Alta HR
 PolarM600Remove Buy NowMisfitRayRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$330$100$399$150
Release2016201620182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days6 months1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a320 x 320128 x 36
Size1.3 inchesn/a1.32 inches1.4 inches
Touchn/an/a
TypeTFTLEDLCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OS
Apps
Music

All Wearables