Polar Loop 2 vs. Fitbit Ionic vs. Asus VivoWatch vs. Garmin 645 Music vs. Fitbit Charge

 
Loop 2
Ionic
VivoWatch
645 Music
Charge
 PolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$120$299$160$450$130
Release20152017201820182014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)4+ days24 hours to 10 days7 days7-10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250128 x 128240 x 240NA
Sizen/a1.42NA1.2 inchesNA
TouchNA
TypeLEDOLEDNAMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance2 ATM50mIP675 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSKoodOSNA
Apps
Music

All Wearables