Polar M400 vs. Withings Activite Sapphire vs. Fitbit Zip vs. Apple Watch vs. Fitbit Charge

 
M400
Activite Sapphire
Zip
Watch
Charge
 PolarM400Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitZipRemove Buy NowAppleWatchRemove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$200$450$60$349$130
Release20142014201220152014

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 months6 months18 hours7-10 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a340 x 272 or 390 x 312NA
Sizen/a1.3 inchesn/a1.5 inches or 1.65 inchesNA
TouchNA
Typen/aAnalogn/aAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMSplash ResistantIPX71 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWatch OSNA
Apps
Music

All Wearables