Amazfit Cor vs. Garmin 645 Music vs. Michael Kors Access Sofie vs. Fitbit Alta HR vs. Garmin VivoActive 4

 
Cor
645 Music
Access Sofie
Alta HR
VivoActive 4
 AmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$79.99$450$395$150$349
Release20182018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days7 days1 day7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution80 x 160240 x 240390 x 390 1.19 inches128 x 36260 x 260
Size1.23 inches1.2 inches1.4 inches1.3ionches
TouchAMOLDED
TypeIPS LCDMIPOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2.0Wear OS
Apps
Music

All Wearables