Casio G-Shock GBA800 vs. Garmin 645 Music vs. Samsung Gear 2 vs. Fitbit Charge 3 vs. Samsung Gear Fit

 
G-Shock GBA800
645 Music
Gear 2
Charge 3
Gear Fit
 CasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGear 2Remove Buy NowFitbitCharge 3Remove Buy NowSamsungGear FitRemove Buy Now

Basic Info

Suggested Price$120$450$300$150$150
Release20182018201420182014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Duration2 years7 days2-3 days7 days2-3 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANot yetNA

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution240 x 240320 x 32066 x 18432 x 128
Size1.2 inches1.63 inches.721 inches1.84 inches
Touch
TypeMIPSuper AMOLEDOLEDSuper AMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance20 ATM5 ATMIP675 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating SystemTizen OSNANA
Apps
Music

All Wearables