Fitbit Ionic vs. Asus ZenWatch vs. Casio WSD-F20A vs. Fitbit Charge 3 vs. Amazfit GTR

 
Ionic
ZenWatch
WSD-F20A
Charge 3
GTR
 FitbitIonicRemove Buy NowAsusZenWatchRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitCharge 3Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$299$150$399$150$199
Release20172014201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysNA1 day7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution348x250320 x 320320 x 32066 x 18454 x 454
Size1.421.63 inches1.32 inches.721 inches1.39 inches
Touch
TypeOLEDAMOLEDLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP555 ATM5 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemFitbit OSAndroid WearWear OSNABuild-in
Apps
Music

All Wearables