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

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

Basic Info

Suggested Price$200$250$170$250
Release2014201420152015

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days8 months48 hours (without GPS)
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320n/a320 x 128
Sizen/a1.6 inches1.3 inches1.36 inches
Touch
Typen/aTFT LCDAnalogCapacitative TFT

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATMIPX7

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/an/a
Apps
Music

Wearables by Microsoft

Microsoft Band

All Wearables