Garmin Forerunner 225 vs. Amazfit Cor vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivosmart 3

 
Forerunner 225
Cor
645 Music
Alta HR
Vivosmart 3
 GarminForerunner 225Remove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$300$79.99$450$150$139.99
Release20152018201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks12 days7 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 18080 x 160240 x 240128 x 3664 x 128
Size1 inch1.23 inches1.2 inches1.4 inchesNA
Touch
Typen/aIPS LCDMIPOLEDOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/a
Appsn/a
Musicn/a

All Wearables