These Jawbone UP2 Activity Trackers drop from $99.99 to $19.99 at BestBuy.com. Plus, shipping is free making this the best price we found by $25. These wristbands measure activity vs. inactivity, calories burned, distance traveled, sleep quality, steps taken, hours slept and nutritional intake. Choose from 5 colors while supplies last. These are one size fits most. Sales tax is charged in most states.