Fitbit Ionic vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivosmart HR Plus vs. Garmin Vivosmart 4

 
Ionic
645 Music
Alta HR
Vivosmart HR Plus
Vivosmart 4
 FitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart HR PlusRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$299$450$150$179$130
Release20172018201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days7 days7 days5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240128 x 36160 x 6848 x 128
Size1.421.2 inches1.4 inches0.5 inches x 0.8 inches0.74 inches
Touch
TypeOLEDMIPOLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNA
Apps
Music

All Wearables