Ancer-Us via eBay offers the Bluetooth Smartwatch in several colors (Black pictured) for $7.99 with free shipping. That's tied with last week's mention and the lowest price we could find by $7. It features an activity monitor, altitude meter, and syncs with iOS or Android devices.
Note: This item ships from China and may take 4-6 weeks to arrive.
Use some marketing and merchandising tricks to make more money with less sweat.