Apple Watch vs. Fitbit Alta HR vs. Fitbit Charge 3 vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Watch
Alta HR
Charge 3
T-Rex
VivoActive 4
 AppleWatchRemove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$349$150$150$140$349
Release20152017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days7 days20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312128 x 3666 x 18360 x 360260 x 260
Size1.5 inches or 1.65 inches1.4 inches.721 inches1.3 inches1.3ionches
Touch
TypeAMOLEDOLEDOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNABuild-inWear OS
Apps
Music

All Wearables