Fitbit Flex 2 vs. Asus ZenWatch vs. Garmin Vivofit 4 vs. Garmin Vivosmart HR Plus vs. Garmin Forerunner 45

 
Flex 2
ZenWatch
Vivofit 4
Vivosmart HR Plus
Forerunner 45
 FitbitFlex 2Remove Buy NowAsusZenWatchRemove Buy NowGarminVivofit 4Remove Buy NowGarminVivosmart HR PlusRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$150$79.95$179$199
Release20162014201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA1 year5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 32088 x 88160 x 68208 x 208
Sizen/a1.63 inchesNA0.5 inches x 0.8 inches1.04 inches
Touchn/a
TypeLEDAMOLEDNALCDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP555 ATM5 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNABuilt-in
Apps
Music

All Wearables