Bodybugg is what they use on The Biggest Loser (which is how I found out about it). You wear it in a band around your arm. The one I have is the Version 3 here: http://www.24hourfitness.com/training/bodybugg/
Favorite Health Food: Salad
Favorite Sinful Food: Chocolate
My Preferred Method of Exercise: Anything outdoors
My Approach to Weight Loss: Any loss is a win
My Weight Loss Program: 21 day fix from beachbody
My Diet Plan: 21 day fix
Fitness/Exercise Apps: Map My Fitness, MyFitnessPal
Fitness Devices: Map my run
DietBet Winnings: $699.68