Garmin Forerunner 225 vs. Fitbit Alta vs. Asus ZenWatch vs. Fitbit Flex vs. Apple Watch Series 4

 
Forerunner 225
Alta
ZenWatch
Flex
Watch Series 4
 GarminForerunner 225Remove Buy NowFitbitAltaRemove Buy NowAsusZenWatchRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$130$150$100$329
Release20152016201420132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 daysNA5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a320 x 320NA384 x 480
Size1 inchn/a1.63 inchesNA1.78 inches
Touchn/aNA
Typen/aOLEDAMOLEDLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/aIP551 ATMNot Yet

Notifications

Phonen/a
Emailsn/an/aNA
Textsn/aNA

Software

Operating Systemn/an/aAndroid WearNAWatch OS 5
Appsn/a
Musicn/a

All Wearables