Fitbit Ionic vs. Asus VivoWatch vs. Garmin 645 Music vs. Polar A370 vs. Garmin VivoActive 4

 
Ionic
VivoWatch
645 Music
A370
VivoActive 4
 FitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowPolarA370Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$299$160$450$179.95$349
Release20172018201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days24 hours to 10 days7 daysUp to 3 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250128 x 128240 x 240160 x 80260 x 260
Size1.42NA1.2 inches1.18 inches1.3ionches
Touch
TypeOLEDNAMIPTFT LCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance50mIP675 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSKoodOSWear OS
Apps
Music

All Wearables