Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin VivoActive 4 vs. Fitbit Inspire 3 vs. Fitbit Sense 2

 
Flex 2
645 Music
VivoActive 4
Inspire 3
Sense 2
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivoActive 4Remove Buy NowFitbitInspire 3Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$100$450$349$100$300
Release20162018201920222022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days8 days10 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240260 x 26032x18336x336
Sizen/a1.2 inches1.3ionches46 inches1.59 inches
Touchn/a
TypeLEDMIPMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OS
Apps
Music

All Wearables