Amazfit Arc vs. Amazfit Cor vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivosmart HR Plus

 
Arc
Cor
645 Music
Alta HR
Vivosmart HR Plus
 AmazfitArcRemove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart HR PlusRemove Buy Now

Basic Info

Suggested Price$69.99$79.99$450$150$179
Release20162018201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days12 days7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution72 x4080 x 160240 x 240128 x 36160 x 68
Size0.42 inches1.23 inches1.2 inches1.4 inches0.5 inches x 0.8 inches
Touch
TypeOLEDIPS LCDMIPOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNA
Apps
Music

All Wearables