Apple Watch Series 2 vs. Casio G-Shock GBA800 vs. Fitbit Alta HR vs. Fitbit Charge vs. Apple Series 6

 
Watch Series 2
G-Shock GBA800
Alta HR
Charge
Series 6
 AppleWatch Series 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitAlta HRRemove Buy NowFitbitChargeRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$269$120$150$130$399
Release20162018201720142020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours2 years7 days7-10 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312128 x 36NA384 x 480
Size1.5 inches or 1.65 inches1.4 inchesNA40mm
TouchNA
TypeAMOLEDOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5ATM20 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNAWatchOS 5
Apps
Music

All Wearables