Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Apple Watch 8

 
Flex 2
Forerunner 935
645 Music
Vivofit 4
Watch 8
 FitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$500$450$79.95$499
Release20162017201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks7 days1 year18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240240 x 24088 x 88340 x 272 or 390 x 312
Sizen/a1.2 inches1.2 inchesNA1.5 inches or 1.65 inches
Touchn/a
TypeLEDLCDMIPNAAMOLED

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/aWatchOS 9
Apps
Music

All Wearables