ASUS ZenWatch 2 vs. ASUS ZenWatch 3 vs. Fitbit Alta HR vs. Fitbit Charge vs. Amazfit GTR

 
ZenWatch 2
ZenWatch 3
Alta HR
Charge
GTR
 ASUSZenWatch 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitAlta HRRemove Buy NowFitbitChargeRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$229$150$130$199
Release20162017201720142019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a48 hours7 days7-10 days24 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320400 x 400128 x 36NA454 x 454
Size1.63 inches or 1.45 inch1.39 inches1.4 inchesNA1.39 inches
TouchNA
TypeAMOLEDAMOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP671 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearAndroid Wear 2NABuild-in
Apps
Music

All Wearables