Garmin Vivoactive HR vs. Garmin 645 Music vs. Fitbit Flex vs. Garmin Vivosmart HR Plus vs. Garmin VivoActive 4

 
Vivoactive HR
645 Music
Flex
Vivosmart HR Plus
VivoActive 4
 GarminVivoactive HRRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart HR PlusRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$250$450$100$179$349
Release20162018201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days7 days5 days5 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205240 x 240NA160 x 68260 x 260
Size1.38 inches1.2 inchesNA0.5 inches x 0.8 inches1.3ionches
TouchNA
Typen/aMIPLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWear OS
Apps
Music

All Wearables