AT&T Wireless offers the Fitbit Charge HR Fitness Tracker in Black, model no. FB405BK, for $149. Coupon code "FITBIT15" drops it to $126.65. With free shipping, that's $8 under our mention from five days ago and the lowest total price we could find by $23. Features include continuous heart rate monitoring, step-, distance-, and calorie-tracking, and wireless sync with supported computers and smartphones. Deal ends February 19.