Best of Breed Electronics via Amazon offers the Jawbone UP 24 Activity Tracker in Persimmon/Small for $21.80 with free shipping. That's $6 under our January mention of a different color and the lowest total price we've seen. (It's also a current low for any size or color by at least $6, outside the offer below.) It tracks steps, exercise, overall calories burned, quality of sleep, calories, and nutrition.

A close price: Shnoop has it in Onyx/Medium for $25.99 with free shipping.