Fitbit Zip vs. Asus ZenWatch vs. Casio WSD-F20A vs. Amazfit GTR vs. Amazfit T-Rex

 
Zip
ZenWatch
WSD-F20A
GTR
T-Rex
 FitbitZipRemove Buy NowAsusZenWatchRemove Buy NowCasioWSD-F20ARemove Buy NowAmazfitGTRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$60$150$399$199$140
Release20122014201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 monthsNA1 day24 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320320 x 320454 x 454360 x 360
Sizen/a1.63 inches1.32 inches1.39 inches1.3 inches
Touch
Typen/aAMOLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash ResistantIP555 ATM5 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearWear OSBuild-inBuild-in
Apps
Music

All Wearables