Atmos Fit is a free Android application developed by Smart band team. It is a Bluetooth low energy product that monitors movement and sleep. The app has three main functions: pedometer, sleep monitoring, and health information sharing.

The pedometer function tracks the number of steps taken and converts it into exercise calories. The sleep monitoring function analyzes the quality of sleep using statistical analysis. This feature can help users improve their sleep quality. Lastly, the app supports the sharing of health information and sports activities.

It is important to note that Atmos Fit requires Android 4.3 or higher and BLE (Bluetooth 4.0) support to work. The app must be used with the hardware provided.

Overall, Atmos Fit is a stylish and useful Bluetooth device that can help users track their movement and sleep in a convenient and efficient way.