Fitbit Flex 2 vs. Asus VivoWatch vs. Garmin 645 Music vs. Fitbit Flex vs. Garmin Forerunner 45

 
Flex 2
VivoWatch
645 Music
Flex
Forerunner 45
 FitbitFlex 2Remove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$100$160$450$100$199
Release20162018201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours to 10 days7 days5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 128240 x 240NA208 x 208
Sizen/aNA1.2 inchesNA1.04 inches
Touchn/aNA
TypeLEDNAMIPLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aKoodOSNABuilt-in
Apps
Music

All Wearables