Image of a Watch Series 3
Image of a Stratos
Image of a G-Shock GBA800
Image of a Charge 3
Image of a GTR
 AppleWatch Series 3Remove Buy NowAmazfitStratosRemove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitCharge 3Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$329$199$120$150$199
Release20172018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days2 years7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312320 x 30066 x 18454 x 454
Size1.5 inches or 1.65 inches1.34 inches.721 inches1.39 inches
Touch
TypeAMOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM20 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4ProprietaryNABuild-in
Apps
Music

All Wearables