Always Deals via eBay offers the Skechers GOwalk Bluetooth Activity Tracker in Black for $8.99 with free shipping. That's $4 under our mention from February and the lowest price we've seen. (It's the best deal now by $2.) This water-resistant tracker monitors steps, distance, calories burned, and sleep patterns. Features include LED indicators, a 12-day memory, and built-in rechargeable battery.