ASUS ZenWatch 2 vs. ASUS ZenWatch 3 vs. Fitbit Ionic vs. Fitbit Alta HR vs. Apple Watch Ultra

 
ZenWatch 2
ZenWatch 3
Ionic
Alta HR
Watch Ultra
 ASUSZenWatch 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$229$299$150$799
Release20162017201720172022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a48 hours4+ days7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320400 x 400348x250128 x 36502x410 pixels
Size1.63 inches or 1.45 inch1.39 inches1.421.4 inches1.92 inches
Touch
TypeAMOLEDAMOLEDOLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP6750m10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearAndroid Wear 2Fitbit OSWatchOS 9
Apps
Music

All Wearables