Today only, 24-Hour Fitness offers the bodybuggSP Calorie Management System for $199. Coupon code "AFPSPBUG" cuts it to $169. With free shipping, that's a $30 drop and the lowest total price we could find, although we saw it for $28 less in June (since expired). Sales tax is added where applicable. Compatible with your PC, Mac, iPhone, iPod, or Android smartphone, it allows real-time tracking of calorie expenditure, counts your steps with a built-in pedometer, among other functions. It includes six months of required subscription to the web-based software.

Note that after the 6-month free subscription has expired, you'll have to buy a subscription to continue to access your calorie management information. At the moment, a month-to-month subscription costs $9.95 per month. A 6-month subscription costs $49.95. A 1-year subscription is $79.95.