Casio G-Shock GBA800 vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Garmin Vivosmart 4 vs. Apple Series 6

 
G-Shock GBA800
Flex
Forerunner 45
Vivosmart 4
Series 6
 CasioG-Shock GBA800Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivosmart 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$120$100$199$130$399
Release20182013201920182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 years5 days7 days7 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA208 x 20848 x 128384 x 480
SizeNA1.04 inches0.74 inches40mm
TouchNA
TypeLEDLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance20 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNABuilt-inWatchOS 5
Apps
Music

All Wearables