Polar M600 vs. Sony SmartWatch 3 vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Polar Loop

 
M600
SmartWatch 3
Flex 2
WSD-F20A
Loop
 PolarM600Remove Buy NowSonySmartWatch 3Remove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$330$250$100$399$100
Release20162014201620182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days2 days5 days1 day5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240320 x 320n/a320 x 320NA
Size1.3 inches1.6 inchesn/a1.32 inchesNA
Touchn/an/a
TypeTFTTFT LCDLEDLCDLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP685 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wearn/aWear OSNA
Apps
Music

All Wearables