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

 
ZenWatch 2
ZenWatch 3
Alta HR
GTS
Series 6
 ASUSZenWatch 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTSRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$150$229$150$150$399
Release20162017201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a48 hours7 days14 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 400128 x 36348 x 442384 x 480
Size1.63 inches or 1.45 inch1.39 inches1.4 inches1.65 inches40mm
Touch
TypeAMOLEDAMOLEDOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceIP675 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearAndroid Wear 2Wear OSWatchOS 5
Apps
Music

All Wearables