Polar M400 vs. Sony SmartWatch 3 vs. Withings Activite Steel vs. Microsoft Band 2 vs. Fitbit Charge

 
M400
SmartWatch 3
Activite Steel
Band 2
Charge
 PolarM400Remove Buy NowSonySmartWatch 3Remove Buy NowWithingsActivite SteelRemove Buy NowMicrosoftBand 2Remove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$200$250$170$250$130
Release20142014201520152014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days2 days8 months48 hours (without GPS)7-10 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320n/a320 x 128NA
Sizen/a1.6 inches1.3 inches1.36 inchesNA
TouchNA
Typen/aTFT LCDAnalogCapacitative TFTOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATMIPX71 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/an/aNA
Apps
Music

All Wearables