Fitbit Flex 2 vs. Fitbit One vs. ASUS ZenWatch 3 vs. Casio G-Shock GBA800 vs. Apple Watch Ultra

 
Flex 2
One
ZenWatch 3
G-Shock GBA800
Watch Ultra
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowASUSZenWatch 3Remove Buy NowCasioG-Shock GBA800Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$100$229$120$799
Release20162012201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days48 hours2 years36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a400 x 400502x410 pixels
Sizen/an/a1.39 inches1.92 inches
Touchn/a
TypeLEDOLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant20 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2WatchOS 9
Apps
Music

All Wearables