ArminTalin23 via eBay offers the Samsung Gear Fit Fitness Tracker and Smartwatch in Black, model no. SM-R3500ZKAXAR, for $121 with free shipping. That's $9 under our July mention and the lowest total price we could find by $28, outside of other eBay sellers. It is water-resistant and features a Super AMOLED display and heart rate monitor. It features a curved 1.8" Super AMOLED display, heart rate sensor, and notification of emails, SMS, and incoming calls. It's compatible with most Samsung mobile devices.