Polar M600 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Acer Liquid Leap vs. Garmin Vivofit 4

 
M600
Activite Sapphire
Charge 2
Liquid Leap
Vivofit 4
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowAcerLiquid LeapRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$330$450$150$90$79.95
Release20162014201620152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 days5 to 7 days1 year
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/a128 x 3288 x 88
Size1.3 inches1.3 inchesn/a1 inchNA
Touchn/an/a
TypeTFTAnalogOLEDOLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMn/aIPX45 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/a
Apps
Music

All Wearables