DayBand is a free lifestyle app developed by SMART WEAR for Android users. It is a Bluetooth low-energy product that offers movement and sleep monitoring features. The app supports the pedometer function, exercise calorie conversion, and sleep monitoring. It also provides statistical analysis of sleep quality, health information sharing, and other sports-related functions.

The app has a stylish design, making it an attractive choice for users who want to monitor their health and fitness in style. However, it is important to note that the phone system must be Android 4.3 or higher, and the phone must support BLE. The app also requires hardware to function properly. Overall, DayBand is a useful app for those who want to track their movement and sleep patterns in a fashionable way.