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

 
ZenWatch 2
Ionic
Alta HR
GTR
Series 6
 ASUSZenWatch 2Remove Buy NowFitbitIonicRemove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$299$150$199$399
Release20162017201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a4+ days7 days24 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320348x250128 x 36454 x 454384 x 480
Size1.63 inches or 1.45 inch1.421.4 inches1.39 inches40mm
Touch
TypeAMOLEDOLEDOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceIP6750m5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearFitbit OSBuild-inWatchOS 5
Apps
Music

All Wearables