Polar M600 vs. Polar Loop 2 vs. Casio WSD-F20A vs. Fitbit Flex vs. Polar A370

 
M600
Loop 2
WSD-F20A
Flex
A370
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$330$120$399$100$179.95
Release20162015201820132017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 days (without notifications)1 day5 daysUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a320 x 320NA160 x 80
Size1.3 inchesn/a1.32 inchesNA1.18 inches
Touchn/aNA
TypeTFTLEDLCDLEDTFT LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM5 ATM1 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OSNA
Apps
Music

All Wearables