Garmin Vivofit 3 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivofit 4 vs. Apple Series 6

 
Vivofit 3
645 Music
Alta HR
Vivofit 4
Series 6
 GarminVivofit 3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivofit 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$450$150$79.95$399
Release20162018201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration1 year7 days7 days1 yearNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution64 x 64240 x 240128 x 3688 x 88384 x 480
Size0.55 inches1.2 inches1.4 inchesNA40mm
Touch
Typen/aMIPOLEDNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatchOS 5
Apps
Music

All Wearables