ASUS ZenWatch 2 vs. Garmin Vivoactive HR vs. Fitbit Flex 2 vs. Fitbit Charge 3 vs. Apple Watch Ultra

 
ZenWatch 2
Vivoactive HR
Flex 2
Charge 3
Watch Ultra
 ASUSZenWatch 2Remove Buy NowGarminVivoactive HRRemove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge 3Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$250$100$150$799
Release20162016201620182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a13 hours to 8 days5 days7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolution320 x 320148 x 205n/a66 x 18502x410 pixels
Size1.63 inches or 1.45 inch1.38 inchesn/a.721 inches1.92 inches
Touchn/a
TypeAMOLEDn/aLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aNAWatchOS 9
Apps
Music

All Wearables