Polar M400 vs. Amazfit Cor vs. Motorola Moto 360 (1st Gen) vs. Polar A370 vs. Garmin Vivosmart 4

 
M400
Cor
Moto 360 (1st Gen)
A370
Vivosmart 4
 PolarM400Remove Buy NowAmazfitCorRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$79.99$150$179.95$130
Release20142018201420172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days12 days1 dayUp to 3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a80 x 160320 x 260160 x 8048 x 128
Sizen/a1.23 inches1.56 inches1.18 inches0.74 inches
Touch
Typen/aIPS LCDLCDTFT LCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMIP67WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear
Apps
MusicNA

All Wearables