Fitbit Ionic vs. Asus VivoWatch vs. Garmin 645 Music vs. Fitbit Flex vs. Huawei Band 2

 
Ionic
VivoWatch
645 Music
Flex
Band 2
 FitbitIonicRemove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowHuaweiBand 2Remove Buy Now

Basic Info

Suggested Price$299$160$450$100$69.99
Release20172018201820132017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days24 hours to 10 days7 days5 days21 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250128 x 128240 x 240NA128 x 32
Size1.42NA1.2 inchesNA0.91 inches
TouchNA
TypeOLEDNAMIPLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance50mIP675 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSKoodOSNA
Apps
Music

All Wearables