ASUS ZenWatch 2 vs. ASUS ZenWatch 3 vs. Fitbit Ionic vs. Fitbit Alta HR vs. Apple Series 6

 
ZenWatch 2
ZenWatch 3
Ionic
Alta HR
Series 6
 ASUSZenWatch 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitIonicRemove Buy NowFitbitAlta HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$229$299$150$399
Release20162017201720172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a48 hours4+ days7 daysNot yet
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 36384 x 480
Size1.63 inches or 1.45 inch1.39 inches1.421.4 inches40mm
Touch
TypeAMOLEDAMOLEDOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceIP6750m

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearAndroid Wear 2Fitbit OSWatchOS 5
Apps
Music

All Wearables