Samsung Gear S3 first impressions: A bigger, bolder smartwatch, but few apps - CNET
Hands-On: The Samsung Gear S3 Smartwatch Classic And Frontier (Designed By The Guy Who Brought You The Titanic DNA Watch From Romain Jerome) - Hodinkee
Leaker says that Samsung Gear S4 will have bigger battery, gold variant
Samsung Gear S4 price and release date expectations - PhoneArena
Amazon.com: kytuwy Gear S3 Frontier & Classic/Galaxy Watch 46mm bands (4 Colors) with One Bezel Loop Ring Styling and One Protector Case for Gear S3 Frontier & Classic/Galaxy Watch 46mm : Cell
Samsung Gear S4 already in the works, codenamed SM-R800 - Android Community