Polar M600 vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Polar Loop vs. Apple Watch 7

 
M600
Flex 2
WSD-F20A
Loop
Watch 7
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$330$100$399$100$429
Release20162016201820132021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 day5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a320 x 320NA396 x 484
Size1.3 inchesn/a1.32 inchesNA1.9 inches
Touchn/an/a
TypeTFTLEDLCDLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM2 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OSNAWatchOS 8
Apps
Music

All Wearables