Fitbit Flex vs. Apple Watch Series 4 vs. Apple Watch Series 5 vs. Apple Series 6 vs. Fitbit Inspire 3

 
Flex
Watch Series 4
Watch Series 5
Series 6
Inspire 3
 FitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch Series 5Remove Buy NowAppleSeries 6Remove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$100$329$329$399$100
Release20132018201920202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNot YetNot YetNot yet10 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA384 x 480384 x 480384 x 48032x18
SizeNA1.78 inches1.78 Inches40mm46 inches
TouchNA
TypeLEDMicroLEDMicroLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance1 ATMNot YetNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWatch OS 5WatchOS 5WatchOS 5
Apps
Music

All Wearables