Fitbit Alta vs. Asus VivoWatch vs. Garmin 645 Music vs. Apple Watch Series 4 vs. Apple Watch 8

 
Alta
VivoWatch
645 Music
Watch Series 4
Watch 8
 FitbitAltaRemove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$130$160$450$329$499
Release20162018201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours to 10 days7 daysNot Yet18 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 128240 x 240384 x 480340 x 272 or 390 x 312
Sizen/aNA1.2 inches1.78 inches1.5 inches or 1.65 inches
Touchn/a
TypeOLEDNAMIPMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistancen/aIP675 ATMNot Yet5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aKoodOSWatch OS 5WatchOS 9
Apps
Music

All Wearables