Polar M600 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Asus ZenWatch

 
M600
Activite Sapphire
Charge 2
ZenWatch
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowAsusZenWatchRemove Buy Now

Basic Info

Suggested Price$330$450$150$150
Release2016201420162014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 daysNA
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/a320 x 320
Size1.3 inches1.3 inchesn/a1.63 inches
Touchn/an/a
TypeTFTAnalogOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMn/aIP55

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid Wearn/an/aAndroid Wear
Apps
Music

All Wearables