Amazfit Stratos vs. Casio G-Shock GBA800 vs. Fitbit Alta HR vs. Fitbit Flex vs. Apple Watch Series 4

 
Stratos
G-Shock GBA800
Alta HR
Flex
Watch Series 4
 AmazfitStratosRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$199$120$150$100$329
Release20182018201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years7 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 300128 x 36NA384 x 480
Size1.34 inches1.4 inchesNA1.78 inches
TouchNA
TypeOLEDOLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM20 ATM1 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemProprietaryNAWatch OS 5
Apps
Music

All Wearables