Blutek via eBay offers the Fitbit Charge HR Wireless Activity Wristband in Black, model no. FB405, for $99.99 with free shipping. That's tied with our expired mention from four days ago and the lowest total price we could find by $19. 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 Large only.