Polar M600 vs. Fitbit Charge 2 vs. Casio WSD-F20A vs. Garmin Forerunner 45

 
M600
Charge 2
WSD-F20A
Forerunner 45
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$330$150$399$199
Release2016201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a320 x 320208 x 208
Size1.3 inchesn/a1.32 inches1.04 inches
Touchn/an/a
TypeTFTOLEDLCDLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OSBuilt-in
Apps
Music

All Wearables