Fitbit Flex vs. Garmin Vivofit 4 vs. Garmin Forerunner 45 vs. Apple SE vs. Apple Series 6

 
Flex
Vivofit 4
Forerunner 45
SE
Series 6
 FitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowGarminForerunner 45Remove Buy NowAppleSERemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$79.95$199$279$399
Release20132018201920202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 year7 days18 hoursNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA88 x 88208 x 208384 x 480384 x 480
SizeNANA1.04 inches40mm40mm
TouchNA
TypeLEDNALCDMicroLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet5 ATM
Water Resistance1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNABuilt-inWatchOS 5WatchOS 5
Apps
Music

All Wearables