Aupalla via Amazon offers the Aupalla 21BP Blood Pressure and Heart Rate Monitor Watch in several colors (Black pictured) for $29.99. Coupon code "MJBM3K9A" cuts it to $20.69. With free shipping, that's $9 off and tied with our mention from two weeks ago as the lowest price we could find. It tracks systolic and diastolic blood pressure, continuous heart rate, and sleep. Deal ends February 28.