Apple Watch Series 3 vs. Garmin Vivosmart HR vs. Amazfit Cor vs. Garmin 645 Music vs. Fitbit Alta HR

 
Watch Series 3
Vivosmart HR
Cor
645 Music
Alta HR
 AppleWatch Series 3Remove Buy NowGarminVivosmart HRRemove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$329$170$79.99$450$150
Release20172015201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days12 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312160 x 6880 x 160240 x 240128 x 36
Size1.5 inches or 1.65 inches1.08 inches1.23 inches1.2 inches1.4 inches
Touch
TypeAMOLEDn/aIPS LCDMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/a
Apps
Music

All Wearables