The Smart Calorie Tracking Band is the first wearable device that tracks your calorie intake through your skin. There’s no need to log in meals or guess the portion sizes. This compact device has a built-in bioelectrical impedance sensor that manages your fluid levels (glucose curve) throughout the day, and sends a full report to your phone or tablet. Also tracks carbs, fats, proteins, hydration, sleep, pulse, stress level, steps and distance. Compatible with iPhone/iPad (iOS 10 or later) and Galaxy/Android (OS 5 or later).