Garmin 645 Music vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Garmin Vivofit 4 vs. Apple Watch Series 5

 
645 Music
Forerunner 235
Flex
Vivofit 4
Watch Series 5
 Garmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy NowAppleWatch Series 5Remove Buy Now

Basic Info

Suggested Price$450$299.99$100$79.95$329
Release20182017201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days9 days5 days1 yearNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240215 x 180NA88 x 88384 x 480
Size1.2 inches1.23 inchesNANA1.78 Inches
TouchNA
TypeMIPMIPLEDNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWatchOS 5
Apps
Music

All Wearables