Garmin Vivoactive HR vs. Fitbit Ionic vs. Garmin 645 Music vs. Fitbit Flex vs. Apple Series 6

 
Vivoactive HR
Ionic
645 Music
Flex
Series 6
 GarminVivoactive HRRemove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$250$299$450$100$399
Release20162017201820132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days4+ days7 days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205348x250240 x 240NA384 x 480
Size1.38 inches1.421.2 inchesNA40mm
TouchNA
Typen/aOLEDMIPLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM50m5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNAWatchOS 5
Apps
Music

All Wearables