ASUS ZenWatch 2 vs. Garmin Forerunner 225 vs. Apple Watch vs. Fitbit Alta HR vs. Apple Series 6

 
ZenWatch 2
Forerunner 225
Watch
Alta HR
Series 6
 ASUSZenWatch 2Remove Buy NowGarminForerunner 225Remove Buy NowAppleWatchRemove Buy NowFitbitAlta HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$300$349$150$399
Release20162015201520172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a10 hours to 4 weeks18 hours7 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320180 x 180340 x 272 or 390 x 312128 x 36384 x 480
Size1.63 inches or 1.45 inch1 inch1.5 inches or 1.65 inches1.4 inches40mm
Touch
TypeAMOLEDn/aAMOLEDOLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceIP675 ATMIPX7

Notifications

Phonen/a
Emailsn/an/a
Textsn/an/a

Software

Operating SystemAndroid Wearn/aWatch OSWatchOS 5
Appsn/a
Musicn/a

All Wearables