• Up to 10 days of battery life
• Track your sleep: total hours, light versus deep, length of time to fall asleep, monitors how long and how well you sleep
• Track your activity: steps, distance, calories burned, time spent active versus idle
• Log what you eat & drink & track nutritional info, free iPhone app required
• Share and compete with friends throughout the day
• Wear all day and night-even in the shower
• Rechargeable battery