Walmart offers the Fitbit Charge HR Wireless Activity Wristband in Plum, model no. FB405PMS, for $99 with free shipping. That's $1 under last week's mention and the lowest total price we could find by $23. Features include continuous heart rate monitoring, step-, distance-, sleep-, and calorie-tracking, time and date display, and wireless sync with supported computers and smartphones. It's available in small only.