Polar M600 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Huawei Watch 2

 
M600
Activite Sapphire
Charge 2
Watch 2
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowHuaweiWatch 2Remove Buy Now

Basic Info

Suggested Price$330$450$150$350
Release2016201420162017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 days48 hours
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/a480 x 480
Size1.3 inches1.3 inchesn/a1.38 inches
Touchn/an/a
TypeTFTAnalogOLEDP-OLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMn/aIP68

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aAndroid Wear 2
Apps
Music

All Wearables