Fitbit Flex 2 vs. Garmin Vivosmart HR vs. Amazfit Cor vs. Garmin 645 Music vs. Garmin Chronos

 
Flex 2
Vivosmart HR
Cor
645 Music
Chronos
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy Now

Basic Info

Suggested Price$100$170$79.99$450$1500
Release20162015201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days12 days7 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 6880 x 160240 x 240218 x 218
Sizen/a1.08 inches1.23 inches1.2 inches1.2 inches
Touchn/a
TypeLEDn/aIPS LCDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables