Fitbit Alta vs. Casio G-Shock GBA800 vs. Fitbit Flex vs. Fitbit Versa 2 vs. Apple Series 6

 
Alta
G-Shock GBA800
Flex
Versa 2
Series 6
 FitbitAltaRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitFlexRemove Buy NowFitbitVersa 2Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$120$100$199$399
Release20162018201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years5 days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA300 x 300384 x 480
Sizen/aNA1.34 inches40mm
Touchn/aNA
TypeOLEDLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a20 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNABuild-inWatchOS 5
Apps
Music

All Wearables