Polar M600 vs. Withings Activite Sapphire vs. Withings Steel HR vs. Fitbit Charge 2 vs. Sony SmartBand

 
M600
Activite Sapphire
Steel HR
Charge 2
SmartBand
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowWithingsSteel HRRemove Buy NowFitbitCharge 2Remove Buy NowSonySmartBandRemove Buy Now

Basic Info

Suggested Price$330$450$180$150$100
Release20162014201620162014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months25 days5 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution240 x 240n/an/an/aNA
Size1.3 inches1.3 inchesn/an/aNA
Touchn/an/aNA
TypeTFTAnalogn/aOLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATMn/aIP58

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/an/aNA
Apps
Music

All Wearables