As one of its daily deals, Best Buy offers the Basis Health Fitness Tracker Smartwatch in Carbon Steel, model no. 900-00001-03, for $139.99 with free shipping. That's a $60 overnight drop and the lowest total price we've seen. (It's a current price low by $59.) It features four sensors that monitor heart rate, motion, temperature, and sleep patterns. It wirelessly syncs with Android and iOS smartphones, or with your PC or Mac via USB.