Apple Watch Series 3 vs. Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Fitbit Alta HR vs. Fitbit Charge 3

 
Watch Series 3
Moto 360 (2nd Gen)
M400
Alta HR
Charge 3
 AppleWatch Series 3Remove Buy NowMotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$329$300$200$150$150
Release20172015201420172018

Activity & Fitness

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

Battery

Duration18 hours1.5 days8 hours to 30 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312360 x 325 or 360 x 330n/a128 x 3666 x 18
Size1.5 inches or 1.65 inches1.37 inches or 1.56 inchesn/a1.4 inches.721 inches
Touch
TypeAMOLEDLCDn/aOLEDOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP673 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Android Wearn/aNA
Apps
Musicn/a

All Wearables