Fitbit Flex 2 vs. Garmin Vivofit 3 vs. Asus ZenWatch vs. Polar A370 vs. Garmin Vivosmart 4

 
Flex 2
Vivofit 3
ZenWatch
A370
Vivosmart 4
 FitbitFlex 2Remove Buy NowGarminVivofit 3Remove Buy NowAsusZenWatchRemove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$100$100$150$179.95$130
Release20162016201420172018

Activity & Fitness

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

Battery

Duration5 days1 yearNAUp to 3 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a64 x 64320 x 320160 x 8048 x 128
Sizen/a0.55 inches1.63 inches1.18 inches0.74 inches
Touchn/a
TypeLEDn/aAMOLEDTFT LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP55WR305 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/an/aAndroid Wear
Apps
Music

All Wearables