Domiratic via Amazon offers the Domiratic Fitness Tracker with Heart Rate Monitor in Black or Red for $34.99. Coupon code "2GJQ8ZHC" knocks it to $24.49. With free shipping, that's $11 off and the lowest price we could find. It monitors heart rate, movement, and sleep. Other features include a medication reminder, stopwatch, and device finder. Deal ends July 31.