Fitbit Alta vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Casio G-Shock GBA800 vs. Apple Watch 7

 
Alta
Flex 2
Stratos
G-Shock GBA800
Watch 7
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowCasioG-Shock GBA800Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$130$100$199$120$429
Release20162016201820182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days5 days2 years18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 300396 x 484
Sizen/an/a1.34 inches1.9 inches
Touchn/an/a
TypeOLEDLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM20 ATMwater resistant but not waterproof

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aProprietaryWatchOS 8
Apps
Music

All Wearables