Ebay offers Samsung Gear S3 Frontier Smartwatch (Bluetooth), SM-R760NDAAXAR (Seller refurbished) for $149.99 (orig. $499) with free shipping.

Product Description:
Samsung Gear S3 frontier Stay in touch, without reaching for your phone, with the smartwatch that’s engineered for adventure. With the Gear S3, you can pay right from your wrist, track your location, and withstand any weather