Garmin Forerunner 225 vs. Garmin Vivosmart HR vs. Amazfit Cor vs. Garmin 645 Music vs. Garmin Vivosmart 4

 
Forerunner 225
Vivosmart HR
Cor
645 Music
Vivosmart 4
 GarminForerunner 225Remove Buy NowGarminVivosmart HRRemove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$300$170$79.99$450$130
Release20152015201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days12 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180160 x 6880 x 160240 x 24048 x 128
Size1 inch1.08 inches1.23 inches1.2 inches0.74 inches
Touch
Typen/an/aIPS LCDMIPOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/a
Appsn/a
Musicn/a

All Wearables