Polar M400 vs. Garmin Vivofit 3 vs. Garmin Vivosmart HR vs. Motorola Moto 360 (1st Gen) vs. Polar A370

 
M400
Vivofit 3
Vivosmart HR
Moto 360 (1st Gen)
A370
 PolarM400Remove Buy NowGarminVivofit 3Remove Buy NowGarminVivosmart HRRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$200$100$170$150$179.95
Release20142016201520142017

Activity & Fitness

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

Battery

Duration8 hours to 30 days1 year5 days1 dayUp to 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a64 x 64160 x 68320 x 260160 x 80
Sizen/a0.55 inches1.08 inches1.56 inches1.18 inches
Touch
Typen/an/an/aLCDTFT LCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP67WR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid Wear
Apps
MusicNA

All Wearables