Garmin Vivosmart HR vs. Garmin 645 Music vs. Amazfit GTR vs. Garmin VivoActive 4 vs. Apple Watch 8

 
Vivosmart HR
645 Music
GTR
VivoActive 4
Watch 8
 GarminVivosmart HRRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy NowGarminVivoActive 4Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$170$450$199$349$499
Release20152018201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days24 days8 days18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68240 x 240454 x 454260 x 260340 x 272 or 390 x 312
Size1.08 inches1.2 inches1.39 inches1.3ionches1.5 inches or 1.65 inches
Touch
Typen/aMIPAMOLEDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuild-inWear OSWatchOS 9
Apps
Music

All Wearables