Fitbit Alta vs. Casio G-Shock GBA800 vs. Diesel On Full Guard 2.5 vs. Apple Watch 8 vs. Apple Series 6

 
Alta
G-Shock GBA800
On Full Guard 2.5
Watch 8
Series 6
 FitbitAltaRemove Buy NowCasioG-Shock GBA800Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowAppleWatch 8Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$120$325$499$399
Release20162018201820222020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years4 days18 hrsNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a454x454340 x 272 or 390 x 312384 x 480
Sizen/a1.39 inches1.5 inches or 1.65 inches40mm
Touchn/a
TypeOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a20 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSWatchOS 9WatchOS 5
Apps
Music

All Wearables