The XNFit Activity Tracker is a small, smart and stylish device that will track your steps, distance and calories. It also has an integrated sleep monitor so you can track the quality of your sleep which is critical to good health and well-being. The tracker has high a quality OLED screen that shows time and progress of your activities for up to 15 days. The device comes with a small CD (for PC) loaded with a program that will allow you to upload your data to the computer and see it displayed on visual charts, where you can set goals based on this data.The XNFit is a small clip-on device that comes with a soft, stylish and comfortable wrist strap. You can clip the device to your belt or even clothing. On top of the monitor is a small button which navigates through the different modes: time, steps, distance, calories, time moving and sleep quality. The battery is also very good and lasts about 5-7 days between charges and when you connect the XNFit to the included USB charger it will display charging progress. Highly recommended for increasing motivation and regaining optimum health and wellbeing.