Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Asus ZenWatch vs. Fitbit Alta HR vs. Garmin Forerunner 45

 
Flex 2
ZenWatch 3
ZenWatch
Alta HR
Forerunner 45
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowAsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$229$150$150$199
Release20162017201420172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hoursNA7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400320 x 320128 x 36208 x 208
Sizen/a1.39 inches1.63 inches1.4 inches1.04 inches
Touchn/a
TypeLEDAMOLEDAMOLEDOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP555 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid Wear 2Android WearBuilt-in
Apps
Music

All Wearables