Amazon.com: Compatible for Samsung Gear S3 Frontier/Classic Case Bezel Cover, Metal Bezel + TPU Protector Bumper Case, Also Fit for 2018 Released Galaxy Watch 46mm/NOT for 2021 Galaxy Watch 4 Classic 46mm :
Amazon.com: Gear S3 Frontier Band XL/Large, Oitom Premium Solid Stainless Steel Watch Bands Link Bracelet Strap for Samsung Gear S3 Classic Gear S3 Frontier Galaxy Watch 46mm Smart Watch Fitness Black :