ASUS ZenWatch 3 vs. Fitbit Charge HR vs. Apple Watch Series 4 vs. Amazfit GTS vs. Amazfit T-Rex

 
ZenWatch 3
Charge HR
Watch Series 4
GTS
T-Rex
 ASUSZenWatch 3Remove Buy NowFitbitCharge HRRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$229$150$329$150$140
Release20172015201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours5 daysNot Yet14 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400NA384 x 480348 x 442360 x 360
Size1.39 inchesNA1.78 inches1.65 inches1.3 inches
TouchNA
TypeAMOLEDOLEDMicroLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMNot Yet5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2NAWatch OS 5Wear OSBuild-in
Apps
Music

All Wearables