Garmin Fenix 5s vs. Garmin 645 Music vs. Fitbit Flex vs. Apple Series 6 vs. Fitbit Inspire 3

 
Fenix 5s
645 Music
Flex
Series 6
Inspire 3
 GarminFenix 5sRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowAppleSeries 6Remove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$599.99$450$100$399$100
Release20172018201320202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 9 days7 days5 daysNot yet10 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218x 218240 x 240NA384 x 48032x18
Size1.1 inches1.2 inchesNA40mm46 inches
TouchNA
TypenaMIPLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance10ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWatchOS 5
Apps
Music

All Wearables