Samsung Gear S3 and Gear S2 are available on the cheap from Amazon
Samsung Gear S3 Frontier review: Lots of features, not enough apps | Engadget
Amazon.com: Bepack Bands for Samsung Gear S3 Watch, 22mm Stainless Steel Metal Replacement Smart Watch Accessories Wrist Strap for S3 Frontier Classic Bands with Pin Link Remover Tool for Woman Man Silver