Polar M600 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Apple Watch Series 4 vs. Fitbit Inspire HR

 
M600
Activite Sapphire
Charge 2
Watch Series 4
Inspire HR
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowAppleWatch Series 4Remove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$330$450$150$329$99
Release20162014201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 daysNot Yet5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/a384 x 480139 x 60
Size1.3 inches1.3 inchesn/a1.78 inches1.4 inches
Touchn/an/a
TypeTFTAnalogOLEDMicroLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMn/aNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aWatch OS 5Fitbit OS
Apps
Music

All Wearables