Fitbit Flex 2 vs. Garmin 645 Music vs. Apple Watch Series 4 vs. Fitbit Versa 2 vs. Apple Series 6

 
Flex 2
645 Music
Watch Series 4
Versa 2
Series 6
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy NowFitbitVersa 2Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$450$329$199$399
Release20162018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 daysNot Yet5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240384 x 480300 x 300384 x 480
Sizen/a1.2 inches1.78 inches1.34 inches40mm
Touchn/a
TypeLEDMIPMicroLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OS 5Build-inWatchOS 5
Apps
Music

All Wearables