Apple Watch Series 2 vs. Asus ZenWatch vs. Casio G-Shock GBA800 vs. Fitbit Flex vs. Apple Watch Ultra

 
Watch Series 2
ZenWatch
G-Shock GBA800
Flex
Watch Ultra
 AppleWatch Series 2Remove Buy NowAsusZenWatchRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitFlexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$269$150$120$100$799
Release20162014201820132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hoursNA2 years5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 320NA502x410 pixels
Size1.5 inches or 1.65 inches1.63 inchesNA1.92 inches
TouchNA
TypeAMOLEDAMOLEDLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATMIP5520 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemWatch OSAndroid WearNAWatchOS 9
Apps
Music

All Wearables