The Value Pack Modular offers ultimate UX by strengthening its functions according to life styles and environments of diverse users. The modular adopted the concept of “eco-system” that provides standardized value pack to each segment of the smartphone, smartwatch and tablet, so that they can use existing value pack of different size devices. Users can run their value pack easily and intuitively via a designated application. Diverse value packages include lens exchange camera, mini projector, large capacity storage pack, high performance flash and excellent sensors, such as of heart rate, altitude, air pressure, temperature and humidity.