Smartphone with Upload App Interface

A modern white smartphone is depicted at an angle, displaying an app with a warm red gradient interface. The screen prominently features a large circular 'Upload' button in the center and a friendly greeting, 'Goodmorning, Julian!', at the top. Below the main button, various control elements are visible, including icons for temperature, a timer, and toggle switches, suggesting an application designed for managing connected devices or data. The clear and intuitive user experience is highlighted.

smartphone - mobile app - upload - user interface - device control - technology