These Jawbone UP3 Activity + Heart Rate Trackers drop from $179.99 to $44.99 at BestBuy.com. Plus, shipping is free making this the best price we found by $72. These wristbands feature heart health monitoring, advanced sleep tracking and a smart alarm, . Choose from 5 colors while supplies last. These are one size fits most and work with iOS and Android devices. Sales tax is charged in most states.