Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Fitbit Ionic vs. Amazfit Arc vs. Garmin Vivofit 4

 
Moto 360 (2nd Gen)
M400
Ionic
Arc
Vivofit 4
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowAmazfitArcRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$300$200$299$69.99$79.95
Release20152014201720162018

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 days4+ days20 days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a348x25072 x4088 x 88
Size1.37 inches or 1.56 inchesn/a1.420.42 inchesNA
Touch
TypeLCDn/aOLEDOLEDNA

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM50mIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aFitbit OS
Apps
Musicn/a

All Wearables