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

 
Watch
Charge 3
Charge HR
Watch Series 4
T-Rex
 AppleWatchRemove Buy NowFitbitCharge 3Remove Buy NowFitbitCharge HRRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$349$150$150$329$140
Release20152018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days5 daysNot Yet20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 31266 x 18NA384 x 480360 x 360
Size1.5 inches or 1.65 inches.721 inchesNA1.78 inches1.3 inches
TouchNA
TypeAMOLEDOLEDOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNANAWatch OS 5Build-in
Apps
Music

All Wearables