Garmin Vivosmart HR vs. Garmin 645 Music vs. Fitbit Flex vs. Garmin VivoActive 4 vs. Apple SE

 
Vivosmart HR
645 Music
Flex
VivoActive 4
SE
 GarminVivosmart HRRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowGarminVivoActive 4Remove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$170$450$100$349$279
Release20152018201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 days8 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68240 x 240NA260 x 260384 x 480
Size1.08 inches1.2 inchesNA1.3ionches40mm
TouchNA
Typen/aMIPLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSWatchOS 5
Apps
Music

All Wearables