TriState1 via eBay offers the Fitbit Charge HR Wireless Activity Wristband in six colors for $99.99 with free shipping. That's the lowest total price we could find by $21, although we saw it for a buck less three weeks ago. 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 sizes S, L, or XL, although not in all size/color combinations.