This product has two colors that are Black and Blue. It tracks daily steps, stairs climbed, distance, calories burned, and activity level via 3-d motion sensor and altimeter technology. It also measures how long and how well you sleep. You just wear it on your wrist at night with Fitbit wristband (included). See online graphs, compete with friends, earn new badges and log food, weight and other workouts at Fitbit.com and on new iPhone app.The features of this product in a view:
1. Track all Day activity, 2. Track your sleep, 3. Track your fitness trends and 4. Integrates with other apps
