Amazfit Arc vs. Amazfit Cor vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Instinct

 
Arc
Cor
645 Music
Alta HR
Instinct
 AmazfitArcRemove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$69.99$79.99$450$150$300
Release20162018201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration20 days12 days7 days7 days14 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 36128 x 128
Size0.42 inches1.23 inches1.2 inches1.4 inches0.9 inches
Touch
TypeOLEDIPS LCDMIPOLEDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating System
Apps
Music

All Wearables