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

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

Basic Info

Suggested Price$300$200$170$150$150
Release20152014201520152019

Activity & Fitness

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

Battery

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

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a160 x 68NA348 x 442
Size1.37 inches or 1.56 inchesn/a1.08 inchesNA1.65 inches
TouchNA
TypeLCDn/an/aOLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

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

All Wearables