ASUS ZenWatch 2 vs. Casio WSD-F20A vs. Fitbit Flex vs. Apple Watch Series 4 vs. Amazfit GTS

 
ZenWatch 2
WSD-F20A
Flex
Watch Series 4
GTS
 ASUSZenWatch 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$150$399$100$329$150
Release20162018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a1 day5 daysNot Yet14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320320 x 320NA384 x 480348 x 442
Size1.63 inches or 1.45 inch1.32 inchesNA1.78 inches1.65 inches
TouchNA
TypeAMOLEDLCDLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATMNot Yet5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWear OSNAWatch OS 5Wear OS
Apps
Music

All Wearables