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

 
Steel
M600
Activite Sapphire
Charge 2
ZenWatch
 PebbleSteelRemove Buy NowPolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowAsusZenWatchRemove Buy Now

Basic Info

Suggested Price$150$330$450$150$150
Release20142016201420162014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days2 days8 months5 daysNA
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144240 x 240n/an/a320 x 320
Size1.26 inches1.3 inches1.3 inchesn/a1.63 inches
Touchn/an/a
Typee-paperTFTAnalogOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX85 ATMn/aIP55

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemPebble OSAndroid Wearn/an/aAndroid Wear
Apps
Music

All Wearables