Apple Watch Series 2 vs. Fitbit Ionic vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Apple Watch Ultra

 
Watch Series 2
Ionic
G-Shock GBA800
645 Music
Watch Ultra
 AppleWatch Series 2Remove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$269$299$120$450$799
Release20162017201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours4+ days2 years7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312348x250240 x 240502x410 pixels
Size1.5 inches or 1.65 inches1.421.2 inches1.92 inches
Touch
TypeAMOLEDOLEDMIP

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM50m20 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSFitbit OSWatchOS 9
Apps
Music

All Wearables