Apple Watch vs. Garmin 645 Music vs. Garmin Chronos vs. Fitbit Flex vs. Garmin VivoActive 4

 
Watch
645 Music
Chronos
Flex
VivoActive 4
 AppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$349$450$1500$100$349
Release20152018201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days8 days5 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312240 x 240218 x 218NA260 x 260
Size1.5 inches or 1.65 inches1.2 inches1.2 inchesNA1.3ionches
TouchNA
TypeAMOLEDMIPMIPLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM10 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSWear OSNAWear OS
Apps
Music

All Wearables