Fitbit Flex 2 vs. Asus ZenWatch vs. Fitbit Flex vs. Apple Watch Series 4 vs. Garmin Forerunner 45

 
Flex 2
ZenWatch
Flex
Watch Series 4
Forerunner 45
 FitbitFlex 2Remove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$150$100$329$199
Release20162014201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA5 daysNot Yet7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320NA384 x 480208 x 208
Sizen/a1.63 inchesNA1.78 inches1.04 inches
Touchn/aNA
TypeLEDAMOLEDLEDMicroLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP551 ATMNot Yet5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNAWatch OS 5Built-in
Apps
Music

All Wearables