ASUS ZenWatch 2 vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Amazfit T-Rex vs. Apple Watch 8

 
ZenWatch 2
WSD-F20A
Alta HR
T-Rex
Watch 8
 ASUSZenWatch 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$150$399$150$140$499
Release20162018201720192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a1 day7 days20 days18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320320 x 320128 x 36360 x 360340 x 272 or 390 x 312
Size1.63 inches or 1.45 inch1.32 inches1.4 inches1.3 inches1.5 inches or 1.65 inches
Touch
TypeAMOLEDLCDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWear OSBuild-inWatchOS 9
Apps
Music

All Wearables