Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Garmin Vivosmart HR vs. Fitbit Charge 3 vs. Amazfit GTS

 
Moto 360 (2nd Gen)
M400
Vivosmart HR
Charge 3
GTS
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowGarminVivosmart HRRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$200$170$150$150
Release20152014201520182019

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 days5 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a160 x 6866 x 18348 x 442
Size1.37 inches or 1.56 inchesn/a1.08 inches.721 inches1.65 inches
Touch
TypeLCDn/an/aOLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aNAWear OS
Apps
Musicn/a

All Wearables